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HomeMy WebLinkAboutDrainage Reports - 12/09/1993rPROPEItTY OF, }FORT :COLLY�iu UTILITIES `> 1 roared ROW a 1 `= FINAL DRAINAGE ' REPORT 1 - AND ER0 10N ., CONTROL AEPORT . 1., FOR 1 THE � PRESERVE ' P U D . . �• � A: 1 1, y PRESENTFED'. T f ' 1 . "T lHEcoy®'QQLoiS I 3EP7 70 99w REVISED OCT. 7, 19:93 REVlSED'NO.V. ;1.7,19 3 REVISED,NOV..- 3Ox ' 199:3 1 x z t a Z J. E December 8, 1993 Ms. Kathy Malers „ Stormwater Department J City of Fort Collins 235 Mathews Fort Collins, CO 80524 RE: The Preserve P.U.D. Project No. 10-726-001 Dear Ms. Malers: We are pleased to submit this revised Final Drainage and Erosion Control Report for The JPreserve located within the Raintree P.U.D. We believe this plan is complete and has been prepared in accordance with all Stormwater criteria and we look forward to your review and comment. If you have any questions, please feel free to contact us. - Sincerely, J " TST, INC., CONSULTING ENGINEERS '� Stephen F. Humann, P.E. SFH/kd .� Enclosure 11 11 11 TST, INC. " Consulting Engineers J 748 Whalers Way - Building D Fort Collins, CO 80525 (303) 226-0557 Metro Denver (303) 595-9103 Fax (303) 226-0204 102 Inverness Terrace East Suite 105 Englewood, CO 80112 (303)792-0557 Fax (303) 792-9489 TABLE OF CONTENTS Page 1.0 INTRODUCTION ...................................... 1 1.1 Scope and Purpose ................................. 1 1.2 Project Location and Description ......................... 1 2.0 HISTORIC CONDITIONS ................................. 3 3.0 DEVELOPED CONDITIONS PLAN .......................... 4 3:1 Design Criteria .................................... 4 3.2 Proposed Drainage Plan .............................. 5 4.0 DETENTION POND ANALYSIS ............................. 7 4.1 Detention Pond Analysis and Design ...................... 7 4.1.1 Subbasin Delineation and Definition of Hydrologic Parameters .. 7 4.1.2 Conveyance Element Definition ..................... 9 4.1.3 Rainfall Hyetograph ........................... 11 4.1.4 Sizing of the Detention. Ponds and Outlet Facilities ........ 11 4.2 Pond B Siphon Inlet Analysis and Design .................. 20 4.3 Hydraulic Grade Line Calculations ....................... 20 5.0 EROSION CONTROL PLAN .............................. 22 5.1 Site Description .................................. 22 5.2 Scope ......................................... 22 5.3 Overview ...................................... 22 5.4 Details ........................................ 23 APPENDICES A. Detention Pond/Outlet Facility Design B. Siphon Analysis and Design Calculation C. Hydraulic Grade Line Calculations D. Hydrologic Tables E. Inlet Design F. Street Capacity G. 1980 Report Calculations H. Erosion Control Calculations 1.0 INTRODUCTION ' 1.1 Scope and Purpose This report represents the results of a Drainage Evaluation for The Preserve, a replat of Tracts A, B, E, G, H, I and K of the Raintree P.U.D. A hydrologic analysis of the Proposed Development Plan was completed to determine the location and magnitude of the ' storm runoff. Drainage facilities were evaluated during the hydraulic analysis to insure that the structures could safely convey runoff from the site in accordance with City of Fort ' Collins Storm Drainage Design Criteria. The purpose of this report is to evaluate the development and prepare a Stormwater Management Plan that will address: (1) overall storm drainage planning and management, and (2) requirements and specifications for engineering design of storm drainage facilities. This report is an addendum to the 1980 Drainage Report for Raintree P.U.D. prepared by ' TST, Inc. 1.2 Project Location and Description The proposed development includes only the final plat for The Preserve P.U.D. The Preserve does however, encompass several drainage basins called out in the 1980 Drainage Report including all of Basins A, E, F, G, J and L and portions of Basins B and M. In this Preliminary Drainage Report, The Preserve will consist of 9 sub -basins labeled IA, 1B, 1C, ' 1D, 2A, 2B, 2C, 3A, and 3B. Refer to Exhibit 1 for The Preserve outer boundary and Exhibit 2 for The Preserve sub -basin boundaries. A vicinity map is provided in Figure 1. i �J 1 II L FIGURE 1 rSdW Z fq�� 'Ea 11. I • Q-N I r—t-Libry=w —A C- unicipal JGO�I-Goune El Dispo al Xj h L . ............... . . . . . . In, 1.`LA U , i - . bep g 110:�4 rcTki RADO IF: E SM, 1h,-I` L If" ow , 1 won 4 11 w 282 CW A51/ . . . .......... T L SQ22 z � OJECT 14 rakes ROA Soo) r ftwky Mc 27 7- • r HO, TH R A FIGURE I I 2.0 HISTORIC CONDITIONS ' The proposed site was historically a portion of a sub -basin of the Spring Creek drainage area. This area drained north and northwest into Spring Creek. When the New Mercer 1 ditch was constructed, a portion of the sub -basin to the south of the ditch was cut off from Spring Creek and the drainage from this area became tributary to the ditch. This continued until Shields Street and Drake Road were constructed, which further reduced the area by 1] i 1 1 1 1 1 1 L 11 1 redirecting the flow on the south side of Drake Road. Currently, the site is tributary to the New Mercer Ditch for storm runoff. 3 1 I 7 L 1 3.1 Design Criteria 3.0 DEVELOPED CONDMONS PLAN The drainage system presented in this report has been developed in accordance with the guidelines established by the City of Fort Collins Storm Drainage Design Criteria and Construction Standards Manual (SDDC) dated May, 1984 and revised in January, 1991. Where applicable, design guidelines and information were also obtained from the Denver Regional Council of Government Urban Storm Drainage Criteria Manual (USDCM). ' Two on -site detention areas will be required in order to maintain the correct release rate from the site to existing Detention Pond "B" (See Exhibit 2). The required release from Pond "B" is 5.94 cfs. This release was determined in the 1980 Drainage Report for the ' Raintree P.U.D. Design constraints include the controlled release from existing Detention Pond "B", along with the pressure head system needed to force storm runoff under the New Mercer Ditch to Pond "B". Design calculations for the detention, storm sewer, and the ' pressure system may be found in the appendices of this report. The drainage facilities within the development have incorporated provisions to convey both the initial and major storms. Based on a high density residential land use or zoning, the design storm frequencies were ' selected to be the 2-year design event and 100-year design event for the initial and major storms, respectively. All facilities have been designed to accommodate the 100-year storm event and consequently the 2-year event also. 1 Due to the limited size of the sub -basins in the development, the Rational Method was selected as the method for estimating the runoff from the site. The Rational Method utilizes the SDDC Manual equation: Q = CfCIA ' where Q is the flow in cfs, A is the total area of the basin in acres, Cf is the storm frequency adjustment factor, C is the runoff coefficient, and I is the rainfall intensity in inches per hour. The runoff coefficient, C, was selected to be 0.70 for the overall site. The frequency adjustment factor, Cf, is 1.25 for the 100-year storm event. The appropriate rainfall intensity information was developed based on the rainfall intensity duration curves in the SDDC Manual (SDDC Figure 3-1 included in Appendix A). To obtain the rainfall intensity, the time of concentration must be determined. The following equation was utilized to determine the time of concentration: t�=tf+t< ' where t is the time of concentration in minutes, tof is the initial or overland flow time in minutes, and 4 is the travel time in the ditch, channel or gutter in minutes. The initial or overland flow time was calculated with the SDDC Manual equation: tof = [1.87(1.1 - CCf)L0.5i/(s)0.33 4 I ' where L is the length of overland flow in feet (limited to a maximum of 500 feet), S is the average basin slope in percent, and C and Cf are as previously defined. This procedure for computing time of concentration allows for overland flow as well as travel time for runoff collected in streets, gutters, channels, pipes or ditches. ' Required pipe sizes were designed using a modified mannings equation written for the Hewlett Packard 41 cx calculator and computer modeling. TST, Inc. has supplied the City of Fort Collins Stormwater Department with a hard copy of this program in the past for ' review. Design of detention routing was accomplished using a SWMM analysis. Section IV deals specifically. with on -site and off -site detention. L I 7 J 11 3.2 Proposed Drainage Plan (Please refer to Exhibit 2 while reviewing this report.) It should be noted that all pipe sizing directly related to detention analysis (i.e. lines 1D, 2A and 3A) are sized from SWMM analysis. All other local inlets and pipes are sized based on a rational method analysis. Detention Pond required volumes and release rates were also determined using SWMM analysis and are discussed in Section 4 of this report. The designed inflow to Detention Pond B per the 1980 Drainage Report is 19.52 cfs. We are. proposing . that Detention Pond B be improved to increase detention capacity and allow a higher peak flow to the pond. Calculations forthe re -sizing of the pond may be found in Section IV. Increasing storage in Pond B will allow the peak flow to the pond to be increased, which will decrease the amount of on -site detention required. The Preserve encompasses only a portion of Basin B from the 1980 report. Therefore, a release rate for the remainder of Basin B must be withheld. This has been accomplished via capacity in Pond A of the 1980 report as documented in the "Raintree Townhomes Final Drainage Report" by Lidstone & Anderson dated November 1993. Sub -basins 1 A, 1 B, 1 C and 1 D are tributary to Pond 1. Runoff from the 100-year event for the four sub -basins is.14.85 cfs, 18.19 cfs, 2.57 cfs and 4.29 cfs respectively. Sub -basins 2A, 2B, and 2C, tributary to Pond 2, contribute 11.88 cfs, 7.78 cfs and 2.94 cfs, respectively to Pond 2 during the 100-year event. The total run-off release rate to Pond B from Basins 3, 5, 6, and 7, as well as Ponds 1 and 2 will be 57 cfs for the 100 year event. Please refer to Appendix A for detention analysis calculations. Inlets 1, 2 and 3 will intercept stormwater in parking areas within Sub -basin 1. It will then be piped to Pond 1 which outlets at Inlet 9. From Pond 1, 1.5 cfs is then piped to existing 5 ' Man Hole C1 where a pressure head condition will push stormwater under the New Mercer Ditch and into Pond B. Sub -basins 2B and 2C also have inlets located in parking areas which will intercept stormwater flows for the sub -basins. Runoff is then piped to Pond 2 where it enters Inlet ' 8 and is then released at a rate of 1.9 cfs to M.H. C-1. (See Appendix A for orifice plate size/detention pond release rates.) Sub -basins 3A and 3B will drain to a proposed siphon which will release to Pond B. Stormwater flows for Sub -basin 3A will be collected at Inlet 6 and piped to the siphon. A trickle channel which will run northeast along the New Mercer Ditch collecting stormwater ' from Sub -basin 3B will have inlets placed at intervals in order to maintain an average flow in the channel of approximately 10 cfs. These inlets will release to the storm sewer pipe ' feeding the siphon. n J I 6 ' 4.0 DETENTION POND ANALYSIS 1 4.1 Detention Pond Analysis and Design ' Final sizing of The Preserve detention ponds was accomplished using the detention routing procedure of the Stormwater Management Model (SWMM). The pond configurations and outlet facilities were sized to meet the Fort Collins Storm Drainage Criteria (SDDC) ' freeboard requirement of 1 foot for the 100-year developed condition event. The Preserve is located in the Spring Creek Basin and is subject to the drainage parameters and requirements defined in the Master Drainageway Plan for that basin [EPI, 1988]. Definition ' of hydrologic parameters used in the current analysis were based on SWMM parameters specified in the Master Plan. ' The boundary of the entire Preserve drainage basin was delineated based on the final grading plan developed by TST [August 1993]. The grading and drainage plan is shown on Exhibit ' 3 at a scale of 1" = 50' with a 1-foot contour interval. As shown on the sheet, three detention ponds are to be utilized to attenuate runoff from The Preserve. Ponds 1 and 2 are on -site, while Pond B is located off -site directly north of the New Mercer Ditch. The "Storm Water Drainage Report for The Raintree P.U.D." [TST, 1980] specifies a maximum release from The Preserve, through Pond B, (formerly Pond A in the 1980 TST ' report) of 5.94 cfs for the 100-year return period event under fully -developed conditions. This allowable release rate was incorporated into the design of Pond B. 1 4.1.1 Subbasin Delineation and Definition of Hydrologic Parameters The on -site drainage basin for The Preserve was divided into three subbasins (#1, #2, and #3), as shown on Exhibit 3. The on -site drainage area associated with these three subbasins is 15.4 acres. Three additional subbasins were defined to model off -site runoff which impacts the development. Subbasin #5 encompasses Pond B thereby accounting for direct rainfall on that pond. Subbasins #6 and #7 include existing developed areas east of Raintree ' Drive where runoff is currently conveyed to on -site Manhole C-1 via the existing storm sewer shown on Exhibit 3. Off -site Subbasins #6 and #7 are only partially shown on Exhibit 3; they are shown in their entirety in Figure 2. The total basin area, including the off -site subbasins, is 22.4 acres. The Preserve is planned as a multi -family residential development; the percent impervious was defined for each subbasin by direct measurement of impervious areas shown on the site plan. The percent impervious ranged from 55 to 63 for Subbasins #1 through #3. Subbasin #5 was taken to be 99percent pervious (a minimum 1 percent impervious is required by SWMM). The percent impervious for Subbasins #6 and #7 were determined by direct measurement to be 92 and 34 percent, respectively. 1 7 i Y.' C� F�IN1 f;EE (EX V,IINU) N SCALE, 1' = 80' 5p6.2 ' Infiltration parameters were specified based on the infiltration rates used in the SWMM model for the Spring Creek Master Drainageway Plan. The Preserve is located within Basin ' 135 of the Master Plan SWMM model; the maximum and minimum infiltration rates for Basin 135 are 0.9 and 0.43 in/hr, respectively, with an exponential decay rate of 0.0018 sec'. These infiltration and decay rates were applied to all six subbasins defined for the ' current study. Except as noted, depression detention depths and overland roughness coefficients were ' defined based on the values given in the Master Plan for Basin 135. For Subbasins #1, #2, #3, #6 and #7, depression detention depths of 0.3 and 0.1 inches were used for pervious and ' impervious areas,. respectively. In order to model Subbasin #5 to account for direct rainfall on Pond B, a minimal depression detention depth (0.001 inches) was specified for that subbasin. Manning's roughness coefficients associated with overland flow for all impervious ' areas were taken to be 0.020; roughness values for all pervious areas were defined as 0.25. All subbasin parameters used in the model are summarized in Table 4-1. ' 4.1.2 Conveyance Element Definition Conveyance routing within The Preserve is minimal and would not result in significant attenuation of flood peaks. Therefore, no on -site conveyance elements were identified for the SWMM model utilized to simulate detention. Runoff from Subbasins #1, #2, and #5 is ' sent directly into Ponds 1, 2, and B, respectively. Runoff from Subbasin #3 is combined with outflows from Ponds 1, 2 and 3; the combined hydrograph is taken as direct input into Pond B. ' The existing storm sewer system which services Subbasins #6 and #7 was included in the ' SWMM model. The associated pipe elements were included, not for their attenuation capabilities, but because they constitute a restriction in conveyance capacity for the off -site system. The off -site detention which has been provided is not sufficient for reducing the runoff peaks to levels which can be conveyed by the existing storm sewer system. 9 4 ono „� o 0c) 0 0 0 0 rn m fV A O O O O O CD O O OI SI OBI OI OI OI I OI OI I OII n I ' I to I OI C; O I OI OI OI O I O II In cl tV I h l O I O I C I O I O I O I O I O II C 0Cc `� ... y _o G e •� ,o � G A .., v a a o o a � •� C y O or_ CCC C •C ,., y �O„ cd y d x•. k. 10 ' Therefore, the storm sewers limit the peak flow leaving the site east of Raintree Drive. The SWMM model was constructed to allow the pipes to limit off -site flow entering The Preserve ' to the capacity of the existing pipe system. A schematic indicating the connectivity of the subbasin/conveyance element system is provided in Figure 3. It was assumed for this analysis that all proposed conveyance elements (storm sewers and siphons) would have sufficient capacity for conveying the discharges generated by the SWMM analysis. This assumption was verified during the ' hydraulic analysis phase of the study; discussion of the hydraulic analyses of the storm sewer system is contained in Sections 4.2 and 4.3. ' 4.1.3 Rainfall Hyetograph L The 100-year return period event was modeled for this study. Per the Spring Creek Master Drainageway Plan, a 2-hour duration storm was utilized. The rainfall hyetograph for the 100-year event (based on 5-minute intervals) was obtained from the Master Plan SWMM model. The hyetograph used for the rainfall event is given in Table 4-2. 4.1.4 Sizing of the Detention Ponds and Outlet Facilities As designed, on -site Ponds 1 and 2 would both be drained by 15-inch ADS pipes which would connect at Manhole 1-D-2 where they would outlet to a single 15-inch ADS pipe. This latter pipe would convey flows to Manhole C-1 where Pond 1 and 2 outflows would commingle with the storm sewer flows from the off -site area east of Raintree Drive (Raintree Commercial P.U.D.). It is noted that the detention previously designed for the Raintree P.U.D. is minimal compared to that which is necessary to be effective for reducing runoff peaks from that area. Therefore, off -site detention was not included in the current SWMM model. However, off -site inflows to Manhole C-1 were limited by existing pipe capacities as described in Section 4.1.2. Manhole C-1 defines the upstream end of the existing 24-inch RCP siphon under the New Mercer Ditch; this siphon discharges to Pond B. Stage -storage curves were developed for the two on -site ponds based on the proposed topography shown on Exhibit 3. Due to the large capacity of both Ponds 1 and 2 relative to their respective drainage areas, the 15-inch ADS pipes would be oversized and would not fully utilize the storage available in the two ponds. Therefore, orifice plates were sized for the two pond outlets to maximize storage potential and minimize releases from the ponds. For Ponds 1 and 2, 3.8- and 4.8-inch square orifice plates have been specified, respectively. Each orifice has been designed with an invert elevation equal to the invert of the corresponding outlet pipe. The resulting discharges from Ponds 1 and 2 for the 100-year event would be 1.5 and 1.9 cfs; respectively. With 12.0 cfs contributing from Subbasins #6 and #7, the total 100-year flow entering Manhole C-1 and the existing siphon would be 15.4 cfs. 11 L LEGEND OSUBBASIN CONVEYANCE/ ROUTING ELEMENT O NODE DETENTION Ell POND 206 15" DIA. RCP 1106 S = 0.5% 7 207 107 I 1 B" DIA. RCP S = 1.4% 108 115' DIA. RCP S = 1.1% 3 l 1 .) l 2) 208 F 1 POND 1. F POND 2 log 15" DIA. RCP S = 3.6% 203 209 5 FIGURE 3 205 SCHEMATIC DIAGRAM OF THE DETENTION SYSTEM SWMM MODEL 304 POND e Table 4-2. Rainfall Hyetograph for the 100-year Storm Event. s ... %..X...:... IMA . ........... ..... . . ....... ... .. . ......... RainfallO"ten Intensity s ...... in -..:Intervals) :ii�xx 1. ......... .s..... .......... . q.; . .... .. ................ X. 10: 1'.1 1 0.60 2 0.96 3 1.44 4 1.68 5 3.00 6 5.04 7 9.00 8 3.72 9 2.16 .10 1.56 11 1.20 12 0.84 13 0.60 14 0.48 15 0.36 16 0.36 17 0.24 18 0.24 19 0.24 20 0.24 21 0.24 22 0.12 23 0.12 24 0.12 Total Depth (in) 2.88 13 11 1 1 1 7 11 1 The analysis/design procedure was identical for Ponds 1 and 2; it was an iterative process and is summarized as follows: The orifices were sized based on the maximum allowable water surface elevation in each pond (set to be 1-foot lower than the maximum bank elevation for each pond), and the elevation of the centerline of the circular orifices. 2. Stage -discharge curves were determined based on the orifice designs; these curves were linked with the corresponding stage -storage curve to give a storage -discharge relationship for each pond as required by SWMM. 3. A SWMM analysis was performed for each tributary basin and pond to assess the routing operation of each pond. In both ponds, the 1-foot freeboard requirement was met; the peak release rates are as cited above. 4. The peak flows from Ponds 1 and 2 were combined downstream of Manhole 1-D-2, with the peak flow from Subbasins #6 and #7 added at Manhole C-1. A UDSewer model was developed for the storm sewer system from Manhole C-1 upstream to both ponds and the existing off -site storm sewer. 5. The resulting hydraulic grade line elevations downstream of the two orifices indicated less than full pipe flow conditions demonstrating that the two ponds are not hydraulically connected. 6. The hydraulic grade line elevations directly downstream of the two orifices were found to be higher than the centerlines of the respective orifices; therefore, the hydraulic grade line elevations were taken as the downstream control points for recomputing the driving head in the orifice equation. Revised stage -discharge and storage -discharge curves were computed for each pond. 7. The SWMM analyses were repeated using the revised detention characteristics. The results (maximum ponded water surface elevation and release rate) were found to be unchanged from the initial iteration. Inherent in the above analysis is the assumption that the existing 24-inch siphon would not cause backwater in the upstream storm sewer system (Ponds 1 and 2 outfalls, and the existing pipe system). The validity of this assumption is verified and discussed in Section 4.2. 14 I 1 1 u 7 Runoff from the remaining portion of the site (Subbasin #3) is proposed to be collected in the combination storm sewer/swale located along the northern perimeter of the development. The Subbasin #3 storm sewer would connect to Manhole 3-A-lA which defines the upstream end of the proposed 30-inch RCP siphon under the New Mercer Ditch; this siphon would discharge into Pond B. The storm sewer serving Subbasin #3 and Manhole 3-A-IA would not be connected to the existing system (Manhole C-1 and other appurtenances). The proposed 30-inch siphon and the existing 24-inch siphon would be separate facilities. 1 It is noted that the Raintree Utility Plans show that Pond B and Pond A (now associated with the Fort Collins Senior Center) are both connected to Manhole A-1 located on the east bank of Larimer County Canal No. 2. The hydraulic grade lines shown on the Raintree Utility 1 Plans, for the outfall pipes from both ponds, indicate that both pipes are free -flowing for the 100-year event. Based on this condition, it was concluded that the two ponds are not 1 hydraulically connected. An additional analysis of the storm sewer outfall system for the two ponds has recently been completed for the City of Fort Collins Stormwater Utility [LA, 1 1993]. This analysis optimized the allowable release rates for the ponds and revised the hydraulic grade line for the outfall pipes. The results of that analysis were used as the basis 1 for sizing the Pond B facilities. The letter report indicates that the allowable release rate is unchanged from its original value of 5.94 cfs. The elevation of the hydraulic grade line at the downstream face of the Pond B orifice plate would be 0.1 feet higher than that given on 1 the 1985 utility plans. The letter report associated with the outfall evaluation is included in Appendix I of this report. 1 The existing Pond B configuration was modified, as shown on Exhibit 3, to accommodate 1 the contributing 100-year runoff. The pond footprint was enlarged and the berm elevation raised to an elevation of 5041.1 feet. The analysis procedure for Pond B was similar to that ' described above for Ponds 1 and 2. As cited in the as -built Utility Plans for the Raintree P.U.D., an 83/ -inch diameter orifice plate exists at the Pond B outlet. By way of iteration, it was determined that a 8.1-inch diameter orifice (with an invert elevation equal to the 1 existing orifice invert elevation) would be required to maximize storage and minimize release rates. ' The hydraulic grade line indicated in the letter report referenced above, directly downstream 1 of the Pond B outlet orifice, is higher than the centerline of the proposed 8.1-inch diameter 11 15 1 ' orifice. Therefore, for Pond B, the downstream controlling elevation for computing the driving head used in the orifice equation was the hydraulic grade line elevation. ' A stage -discharge curve was generated for Pond B based on the parameters listed above. This curve was linked with the stage -storage curve for the pond, which was developed based on the topography shown on Exhibit 3, to define a storage -discharge relationship for Pond ' B. The SWMM analysis was conducted taking the 100-year outflow hydrographs from Ponds 1 and 2, the runoff hydrograph from Subbasins #3, #6 and #7 and the direct rainfall onto Subbasin #5 as inflows to Pond B. The resulting 100-year outflow from Pond B would ' be 5.7 cfs which is less than the allowable release of 5.94 cfs. The results indicate that the 100-year water surface elevation would be 5039.4 feet. Therefore, 0.7 feet of freeboard ' would be provided in Pond B. A variance is hereby requested allowing less than the required 1.0 foot of freeboard in Pond B. It is noted that both Ponds A and B are currently undersized. Therefore, the proposed modifications to Pond B represent an improvement in freeboard compared to the existing condition. Furthermore, as described below, an overflow section will be provided to direct any possible overflows to the open space area upstream of the gated control on Larimer County Canal No. 2. ' The designed orifice openings for Ponds 1 and 2 are particularly small and therefore would have a relatively high potential for clogging. However, the associated area inlets would tend ' to collect and strain debris before it enters the outlet box. It is noted that the total open area of the double standard area inlet designed for both ponds is 4.0. square ft. This is 14 to 40 ' times larger than the orifice opening for Ponds 1 and 2. Therefore, a minimum of 92 percent of the area inlets may be obstructed before the area inlets have a smaller open area than the orifices. In the event that either of the outlets for Ponds 1 and 2 should become completely ' obstructed, these ponds have adequate capacity for providing full retention of the .100-year runoff from their respective subbasins. This was verified by an additional SWMM analysis ' for each pond which accumulates the total runoff from Subbasins #1 and #2. The analysis indicated that Ponds 1 and 2 would be able to provide full retention of the 100-year runoff with nearly 1.0 and 0.8 feet of freeboard, respectively. In order to reduce the possibility of uncontrolled pond overtopping of Pond B, a 60-foot wide emergency overflow weir is ' proposed to divert flow to the open space/floodplain area west of the pond. The crest is designed to be 60 feet long at an elevation of 4940.6 feet; this would place the crest 0.5 feet 16 J I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 11 lower than the normal minimum bank elevation. At a flow depth of 3 inches, the weir would pass 19.5 cfs. As shown in Figure 4, the emergency weir has been located such that overflows would not enter Larimer County Canal No. 2 downstream of the gated control structure. Therefore, emergency overflows would not overtax the downstream canal system. Design calculations for the overflow weir are provided in Appendix A. Results of the SWMM analysis for sizing detention facilities are summarized in Table 4-3. It is noted that the freeboard criteria is met for Ponds 1 and 2, with a variance requested for Pond B. In addition, the release criterion is met for Pond B. All supporting calculations for this analysis are provided in Appendix A. 4.2 Pond B Siphon Inlet Analysis and Design As indicated on the Raintree Utility Plans, the existing 24-inch RCP siphon under the New Mercer Ditch consists of a drop manhole at the upstream end (Manhole C-1), a positively sloped 24-inch RCP, and a combination inlet/oudet structure in Pond B. This configuration was analyzed using the. UDSewer computer model, developed by the Urban Drainage and Flood Control District. UDSewer was modified in the Fall of 1992 to allow siphon -type analyses. Worst -case conditions were assumed for this analysis: (a) maximum 100-year water surface elevation in Pond B (5040.34 ft), and (b) total 100-year peak outflow from Ponds 1 and 2, and Subbasins #6 and #7 (15.4 cfs). Under these conditions, results of the analysis indicated the total energy elevation at Manhole C-1 would be 5041.20 ft. This elevation would be below the proposed the minimum inflowing pipe invert elevation of 5043.09 ft (from Manhole 1-D-1). Furthermore, the downstream energy elevation would be lower than the critical water surface elevation associated with the existing storm sewer system at Manhole C-1. Therefore, the existing siphon would operate during the 100-year event without causing backwater in the stormsewer system. The proposed siphon emanating from Manhole 3-A-IA, serving Subbasin #3, was designed using the UDSewer computer model. The configuration is similar to the existing siphon with a drop manhole at the upstream end (Manhole 3-A-1A), a positively sloped 30-inch RCP, and an inlet structure in Pond B with an open grate area equal to or greater than the cross sectional area of the 30-inch pipe. The siphon length and invert elevations were defined and 18 Table 4-3. Summary of SWAM Results for Detention Pond Sizing. ........ . .. ....... MinimumAllowable ..... .. ... ... 00Year l0&.-.Y6f X . . ......... Ban -..�-Release� ed n W at -.0 . E eV4 Urface Surface ... .... .. ..... .. .... e tj 0 �J�a - n iRate .... ......... St .. ......... ... .. . . . . (ft 1 5058 N/A 5056.5 1.5 1.5 1.1 2 5060 N/A 5058.9 1.1 1.9 0.6 B 5041.1* 5.94 5040.4 0.7 5.7 2.2 * Not including emergency spillway crest elevation 19 tmanual iterations made to optimize the siphon diameter without imposing backwater on the upstream storm sewer. Again, worst -case conditions were assumed: (a) maximum 100-year ' water surface elevation in Pond B (5040.4 ft), and (b) 100-year peak runoff from Subbasin 3 (35 cfs). The optimal siphon configuration was found to be a 30-inch RCP. This siphon would result ' in a total energy elevation at Manhole 3-A-IA of 5041.1 ft, which would be less than the critical water surface elevation at the downstream end of the inflowing pipe (5042.5 ft). Therefore, the proposed siphon will operate during the 100-year event without causing ' backwater in the storm sewer system. ' Documentation of the UDSewer analyses for both the existing and proposed siphons is provided in Appendix B. 1 ' 4.3 Hydraulic Grade Line Calculations The 100-year hydraulic grade line was determined, using the UDSewer computer model, for ' the final pipe configurations shown on the Utility Plans. Maximum 100-year water surface elevations in the detention ponds were used as the downstream tailwater level for analyzing ' the branches of the storm sewer system which discharge directly into either Pond 1 or 2. For the three main branches of the storm sewer system, which siphon under the New Mercer ' Ditch, hydraulic grade line analyses were started at the manholes (C-1 and 3-A-lA) at the upstream ends of the siphons. The analyses were started at critical depth as the siphons were designed to ensure the total upstream energies associated with 100-year flows would remain below the inflowing pipe inverts, thereby. resulting in a drop condition at each of the two upstream siphon manholes. Manning's n values were specified as 0.013 and 0.011 for RCP and ADS pipes, ' respectively; loss coefficients at the manholes were defined based on guidance provided in the UDSewer Users Manual. The input data and results of the UDSewer analysis of both ' the east and west branches of the system are provided in Appendix C. The final hydraulic grade lines for the pipes are shown on the Utility Plans. Fa ' An additional UDSewer analysis was conducted for the existing Raintree Drive storm sewer system which is connected to Manhole C-1. As documented in Section 4.2, the proposed ' detention system would not adversely impact the operation of the existing storm sewer system. This additional UDSewer analysis is provided in Appendix C. 1 1 1 11 21 1 5.0 EROSION CONTROL PLAN ' 5.1 Site Description The Raintree P.U.D. is a proposed commercial development. The Preserve is proposed to ' be constructed on a portion of Tracts A, B, E, G, H, I and K of the Raintree P.U.D. This Development is bounded on the east by Raintree Drive, on the south by Drake Road, and on the northwest by the New Mercer Irrigation Ditch. A vicinity map illustrating the project ' location is provided in Figure 1. The proposed development is situated within the Spring Creek Drainage Area and is tributary to the New Mercer Ditch. ' 5:2 Scope ' This Erosion Control Plan is specifically for portions of Tracts A, B, E, G, H, I and K of the Raintree P.U.D. The Preserve will consist of 14 buildings with 18 to 24 units per building, a clubhouse with an outdoor pool, and 29 garage units, along with a parking ' lot/drive located within the development. ' Note: A grading plan will accompany this report and should be referred to while reviewing. Calculations for stages of construction have been made and are ' denoted with an asterisk in Appendix H. (It should be emphasized that an asterisk indicates conditions prior to paving). It should also be noted that grading will not negatively affect the New Mercer Ditch embankment. ' 5.3 Overview This Erosion Control Plan will utilize both structural and vegetative methods of controlling sediment transport. The structural measures include the use of several detention . ponds ' located on site as sediment traps/settling ponds. Sediment control structures will be installed around outlets for each detention pond and all street inlets prior to asphalt. After asphalt is ' done, gravel inlet filters will be installed. Approximately 1000 L.F. of silt fence will be installed along the New Mercer Ditch as shown on the drainage and erosion control sheet 22 G ' (Exhibit 2). The area will also be vegetated for landscaping purposes with a variety of trees and shrubs. Sub -basin 3 will be furrowed along the contour lines. The buildings will serve ' as wind breaks for the site. ' 5.4 Details ' Basins 1: (6.55 Ac) Basin 1 is made up of Sub -basins lA-1D and accounts for 42.7% of the entire development ' site. The basin drains to Detention Pond 1 via Inlets #1, #2 and #3. A large portion of this basin, as with the remaining basins, is made up of buildings and asphalt drive and parking ' areas. The remainder of the basin will be irrigated turf grass and decorative vegetation. Prior to construction of the buildings and vegetation, the Detention Pond 1 will serve as a ' sediment trap. Straw bale barriers and inlet filters will be installed to prevent any excess sedimentation of the storm sewer pipes. ' Basin 2: (3.69 Ac) ' This basin makes up 24.1 % of the development and is tributary to Detention Pond 2. The basin is divided into three sub -basins (2A, 2B and 2Q. As mentioned earlier, a large portion of this basin consists of buildings, drive and parking areas. As with Basin 1, the detention pond will act as a sediment trap for the basin prior to construction of roadways. ' All inlets will have sediment control in place for the length of construction up to planting and asphalt installation. Inlet filters will be used in the roadways prior to and after asphalt is complete. Basin • (5.08 Ac) 1 Basin 3 makes up the remaining 33.2% of the development and as with the previous two ' basins, consists mainly of buildings, drive and parking areas. The basin consists of two sub - basins which are tributary to an underground detention chamber located at the north end of the development. Storm drainage for Sub -basin 3A is intercepted at Inlet #16. Sub -basin 3B has a swale at the most north edge of the sub -basin which will intercept stormwater flows ' and route them to the underground detention via Inlets 7, 7A and 7B. Sediment filters will be placed around these inlets for the duration of construction. Silt fence will be placed at 11 23 11 ' the toe of slope for the length of Sub -basin 3B, and at three locations across the swale. These silt fence locations can be seen on Exhibit 2. All calculations may be found in ' Appendix H. ' It is assumed that curb, gutter and inlet filters will be complete within six weeks of completion of overlot grading. Therefore, effectiveness during construction is at 98.6 % net. ' Performance standard for during construction calculations is 78.1 % net. A "temporary" condition for the entire site being left bare soil was also calculated and is denoted with an asterisk. This bare soil condition falls within 7.7 % of meeting the required performance ' standard of 78.1 % for the site. It should also be noted that mulching will take place within two weeks of overlot grading being completed. The required seed application is 11.40 I 1 1 1 PLS/acre of an even mix of Western Wheat Grass and Blue Gramma. 24 ' TABLE 5-1. RAINFALL PERFORMANCE STANDARD EVALUATION I G' 1 1 I I 11 PROJECT: THE PRESERVE STANDARD FORM A COMPLETED BY: SBG DATE: 5/3/92 DEVELOPED ERODIBILITY Asb Lsb Ssb Lb Sb PS SUBBASIN ZONE (ac) (fr) (%) (fr) 1A HIGH 2.46 300 1.0 1B HIGH 2.97 655 1.03 iC HIGH 0.42 210 1.75 1D HIGH 0.70 210 1.41 TOTAL 6.55 446 1.10 77.5 2A HIGH 1.94 150 2.0 2B HIGH 1.27 540 0.7 2C HIGH 0.48 160 0.9 TOTAL 3.69 285 1 1.41 78.6 3A HIGH 1.35 400 2.0 3B HIGH 3.73 880 1.0 TOTAL 5.08 752 1.66 78.5 1 I TABLE 5-2. EFFECTIVENESS CALCULATIONS. I 11 u [i k PROJECT: THE PRESERVE STANDARD FORM B COMPLETED BY: SBG DATE: 513/93 EROSION CONTROL C-FACTOR P-FACTOR METHOD VALUE VALUE COMMENT Roughened Soil 1.00 0.90 Pavement/Concrete 0.01 1.00 Building Roof 0.01 1.00 Hay or Straw Mulch 0.06 1.00 Sediment Trap 1.00 0.50 Detention Ponds Silt Fence 1.00 0.50 MAJOR PS SUB AREA CALCULATIONS BASIN (%) BASIN (AC) (CALCULATIONS ARE SHOWN IN APPENDIX) 1 DC = 77.5 6.55 AC = 91.2 IA 2.46 Building/Paved/Concrete = 4.26 AC 1B 2.97 Grass = 2.29 AC 1C 0.42 Wt. C-Factor = .028 1D 0.70 Wt. P-Factor = .50 EFF = 98.6 % (> 77.5 %) "During Construction" EFF = 98.6% (>91.2%) "After Construction" Sediment Trap Serves Entire Basin * Roughened Soil Wt. C-Factor = 1.0* Wt. P-Factor = .22* EFF = 78% (>77.5%)* 2 DC = 78.6 3.69 AC = 92.5 2A 1.94 Building/Paved/Concrete = 2.39 AC 2B 1.27 Grass = 1.30 AC 2C 0.48 Wt. C-Factor = .028 Wt. P-Factor = .05 EFF = 98.6 % (> 78.6 %) "During Construction" EFF = 98.6 % (> 92.5 %) "After Construction" Sediment Trap Serves Entire Basin * Roughened Soil Wt. C-Factor = 1.0* Wt. P-Factor = 0.22* EFF = 78.0% (<78.6%)* 3 DC = 78.5 5.08 AC = 92.4 3A 1.35 Building/Paved/Concrete. = 3.56 AC 3B 3.73 Grass = 1.52 AC Wt. C-Factor = .025 Wt. P-Factor = .50 EFF = 98.7 % (> 78.5 %) "During Construction" EFF = 98.7 % (> 92.4 %) "After Construction" * Roughened Soil Wt. C-Factor = 1.0* Wt. P-Factor = .45* EFF = 55.0% (<79.7%)* PS, = EFF = 98.6 % "During and After Construction" DC = 78.5 * EFF1iu = 70.37 % AC = 91.9 * = Temporary Condition DC = During Construction AC = After Construction 1 TABLE 5-3. CONSTRUCTION SEQUENCE FOR CONSTRUCTION PHASE 1 PROJECT: THE PRESERVE STANDARD FORM C SEQUENCE FOR 1993/94 ONLY COMPLETED BY: SFH DATE: November 30, 1993 Indicate by use of a bar line or symbols when erosion control measures will be installed. Major modifications to an approved schedule may require submitting a new schedule for approval by the City Engineer. YEAR '93 194 MONTH NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT OVERLOT GRADING WIND EROSION CONTROL Soil Roughing Perimeter Barrier Additional Barriers Vegetative Methods Soil Sealant Other (Buildings) RAINFALL EROSION CONTROL STRUCTURAL: Sediment Trap/Basin Inlet Filters Straw Barriers Silt Fence Barriers Sand Bags Bare Soil Preparation Contour Furrows Terracing Asphalt/Concrete Paving Other VEGETATIVE: Permanent Seed Planting Mulching/Sealant Temp. Seed Planting Sod Installation Nettings/Mats/Blankets Other STRUCTURES: INSTALLED BY CONTRACTOR MAINTAINED BY CONTRACTOR VEGETATION/MULCHING CONTRACTOR TO BE DECIDED BY BID ' DATE SUBMITTED 11/30/ 3 APPROVED BY CITY OF FORT COLLINS ON • APPE NDIX I Calculations 6h'"TodtOtitlet! , Facility' Design Ic c ,r I 4 rti� I I I �� ` t I. 1. 41 If ' -I I � , - �, I - 1� .1 J I,, I - ;"-� t"' ,,,, ..'�� �' I. 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' 3 - i r, v r ' 1 2 3 4 WATERSHED 0 ESERVE - DETENTION 0-YR EVENT FILE: ROUTING ANALYSIS ALL PONDS AND BASINS, PLUS OFFSITE FLOWS� PRE-ALL.DAT LIDSTONE & ANDERSON, INC., CLD 10-28-1993 � - �jfU(1,I��(r D4ev?l o 1 60 0000 5. 1 1. 1 eOJ '25 5. .60 .96 1.44 1.68 3.00 5.04 9.00 3.72 2.16 1.56 1.20 .84 .60 .48 .36 .36 .24 .24 .24 .24 .24 .12 .12 .12 0. 1 1 3012300. 6.55 55. .020 .020 .25 .1 .3 .9 .43 .0018 1 2 3021600. 3.69 63. .020 .020 .25 .1 .3 .9 .43 .0018 - On -SI7C ✓�5«'� I: ^� 1 3 2031700. 5.12 55. .050 .020 .25 .1 .3 .9 .43 .0018 e"itron fond 1 5 205 925. 0.98 01. .200 .020 .25 .001 .001 .9 .43 .0018- 67 1 6 206 700. 3.20 92. .020 .020 .25 .1 .3 .9 .43 .0018 I:GIV:'roe 1 7 207 625. 2.87 34. .018 .020 .25 .1 .3 .9 .43 .0018� pV-54e ' 6 1 2 3 5 6 7 ' 6 7 2 3 5 6 7 301 209 8 2 0.1 1. .1000 0. 0. 0.0 0. .001 0.82 .03 0.98 ' 37 1.22 .64 1.33 .94 1.43 302 209 6 2 0.1 1. .1000 0. 0. 0.0 0. .001 0.99 .03 1.29 37 1.75 .64 1.94 203 205 3 0.1 1. .100 0. 0. 206 106 3 0.1 1. .100 0. 0. 106 208 2 1.25 357. .005 0. 0, ' 207 107 3 0.1 1. .100 0. 0. 107 108 2 1.50 32. .014 0. 0. 108 208 2 1.25 71. .011 0. 0. 208 109 3 0.1 1. .100 0. 0. 109 209 2 1.25 248. .036 0. 0. 209 205 3 0.1 1. .100 0. 0. 205 304 3 0.1 1. .100 0. 0. ' 304 0 7 2 0.1 1. .100 0. 0. 0.0 0. .18 2.75 .46 3.65 1.37 4.98 1.96 5.53 2.62 6.03 10 301 302 304 203 106 107 108 208 209 205 10 301 302 304 203 106 107 108 208 209 205 EHDPROGRAM 1 1 11 .024 0.1 .15 1.11 Yor rGl , 1 1.29 1.52 .024 0.1 �on�aZ .16 1.54 .024 0.1 'btn n£5 r%ram*° nt a5 phon .024 0.1 Fiwfrom o�i5 tt rjcr,:n IG .013 1.25 .024 0.1 prrSitE t525,A % .013 1.501 C� ^ J Orn 5C IC/. /oAl 3'srrl7 .013 1.25 .024 0.1 .013 1.25(M.SC✓F��Dn'iu'S .024 0.1 Fio j4p .024 0.1 .02 ' 0.1 _ .88 4.37 n:� ENVIRONMENTAL PROTECTION AGENCY - STORM WATER MANAGEMENT MODEL DEVELOPED BY ' UPDATED BY RAPE OR DISK ASSIGNMENTS METCALF + EDDY, INC. UNIVERSITY OF FLORIDA WATER RESOURCES ENGINEEERS, INC. (SEPTEMBER 1970) UNIVERSITY OF FLORIDA (JUNE 1973) HYDROLOGIC ENGINEERING CENTER, CORPS OF ENGINEERS MISSOURI RIVER DIVISION, CORPS OF ENGINEERS (SEPTEMBER 1974) BOYLE ENGINEERING CORPORATION (MARCH 1983) ' JIN(1) JIN(2) JIN(3) JIN(4) JIN(5) JIN(6) JIN(7) JIN(8) JIN(9) JINGO) 2 1 0 0 0 0 0 0 0 0 JOUT(1) JOUT(2) JOUT(3) JOUT(4) JOUT(5) JOUT(6) JOUT(7) JOUT(8) JOUT(9) JOUT0 0) 1 2 0 0 0 0 0 0 0 0 NSCRAT(1) NSCRAT(2) NSCRAT(3) NSCRAT(4) NSCRAT(5) 3 4 0 0 0 -The -P��s eve - 5io�m�fF� �:•:'r(: on - 5 wn�M OvFp vi- - ioo-yPG� eve,�. L 1 rTERSHED PROGRAM CALLED •** ENTRY MADE TO RUNOFF MODEL *** PRESERVE - DETENTION ROUTING ANALYSIS ALL PONDS AND BASINS, PLUS OFFSITE FLOWS 1100-YR EVENT FILE: PRE-ALL.DAT LIDSTONE 8 ANDERSON, INC., CLD 10-28-1993 NUMBER OF TIME STEPS 60 ,INTEGRATION TIME INTERVAL (MINUTES) 5.00 ' 1.0 PERCENT OF IMPERVIOUS AREA HAS ZERO DETENTION DEPTH FOR 25 RAINFALL STEPS, THE TIME INTERVAL IS 5.00 MINUTES IFOR RAINGAGE NUMBER 1 RAINFALL HISTORY IN INCHES PER HOUR 60 .96 1.44 1.68 3.00 5.04 9.00 3.72 2.16 1.56 1.20 .84 .60 .48 .36 .36 .24 .24 .24 .24 .24 .12 .12 .12 .00 [1 1 i 1 1 11 i 1 1 I 'RESERVE - DETENTION ROUTING ANALYSIS ALL PONDS AND BASINS, PLUS OFFSITE FLOWS 100-YR EVENT FILE: PRE-ALL.DAT LIDSTONE 8 ANDERSON, INC., CLD 10-28-1993 1 UBAREA GUTTER WIDTH AREA PERCENT UMBER OR MANHOLE (FT) (AC) IMPERV. 1 301 2300. 6.6 55.0 2 302 1600. 3.7 63.0 3 203 1700. 5.1 55.0 5 205 925. 1.0 1.0 6 206 700. 3.2 92.0 7 207 625. 2.9 34.0 TOTAL NUMBER OF SUBCATCHMENTS, 6 TOTAL TRIBUTARY AREA (ACRES), 22.41 HYDROGRAPHS WILL BE SAVED FOR THE FOLLOWING ' 1 2 3 5 1 1 1 1 i 1 1 1 1 1 SLOPE RESISTANCE FACTOR SURFACE STORAGE(IN) (FT/FT) IMPERV. PERV. IMPERV. PERV. .0200 .020 .250 .100 .300 .0200 .020 .250 .100 .300 .0500 .020 .250 .100 .300 .2000 .020 .250 .001 .001 .0200 .020 .250 .100 .300 .0180 .020 .250 .100 .300 INFILTRATION RATE(IN/HR) GAGE MAXIMUM MINIMUM DECAY RATE NO .90 .43 .00180 1 .90 .43 .00180 1 .90 .43 .00180 1 .90 .43 .00180 1 .90 .43 .00180 1 .90 .43 .00180 1 6 SUBCATCHMENTS FOR SUBSEQUENT USE WITH UDSWM2-PC 6 7 1 RESERVE - DETENTION ROUTING ANALYSIS ALL PONDS AND BASINS, PLUS OFFSITE FLOWS 100-YR EVENT FILE: PRE-ALL.DAT LIDSTONE & ANDERSON, INC., LLD 10-28-1993 YDROGRAPHS ARE LISTED FOR THE FOLLOWING 6 SUBCATCHMENTS - AVERAGE VALUES WITHIN TIME INTERVALS IME(HR/MIN) 1 2 3 5 6 7 0 5. 0. 0. 0. 0. 0. 0. 0 10. 0. 0. 0. 0. 0. 0. 0 15. 3. 2. 3. 0. 1. 1. 0 20, 6, 4. 5, 1, 4. 2. ' 0 25. 9. 6. 7. 2. 7. 2. 0 30. 19. 13. 16. 3. 13. 5. 0 35. 42. 26. 35. 0 G 12. 0 40. 37. 21. 29. 6. 20. 13. S�gn�S�n }�e�kS 0 45. 18, 9. 13, 2. 9, 8. 0 50. 13. 7. 10. 2. 6. 7. ' 0 55. 9. 5. 7. 1. 5. 5. 1 0. 7. 4. 5. 1. 3. 4. 1 5. 5. 3. 3. 0. 3. 3. 1 10. 3. 2. 2. 0. 2. 2. 1 15. 3. 1. 2. 0. 1. 2. 1 20. 2. 1. 1. 0. 1. 1. 1 25. 2. 1. 1. 0. 1. 1. 1 30. 1. 1. 1. 0. 1. 1. 1 35. 1. 1. 1. 0. 1. 1. ' 1 40. 1. 1. 1. 0. 1. 1. '1 45. 1. 1. 1. 0. 1. 1. 1 50. 1. 1. 1. 0. 1. 0. ' 1 .55. 1. 0. 0. 0. 0. 0. 2 0. 1. 0. 0. 0. 0. 0. ' 2 5. 0. 0. 0. 0. 2 10. 0. 0. 0. 0. 0. 0. 2 15. 0. 0. 0. 0. 0. 0. 2 20. 0. 0. 0. 0. 0. 0. 2 25, 0. 0. 0. 0. 0. 0. ' 2 30. 0. 0. 0. 0. 0. 0. 2 35. 0. 0. 0. 0. 0. 0. 2 40. 0. 0. 0. 0. 0. 0. 2 45. 0. 0. 0. 0. 0. 0. 2 50. 0. 0. 0. 0. 0. 0. 2 55. 0. 0. 0. 0. 0. 0. 3 0. 0. 0. 0. 0. 0. 0. 3 5. 0. 0. 0. 0. 0. 0. 3 10. 0. 0. 0. 0. 0. 0. 3 15. 0. 0. 0. 0. 0. 0. 3 20. 0. 0. 0. 0. 0. 0. 3 25. 0. 0. 0. 0. 0. 0. 3 30. 0. 0. 0. 0. 0. 0. 3 35. 0. 0. 0. 0. 0. 0. 3 40. 0. 0. 0. 0. 0. 0. 3 45. 0. 0. 0. 0. 0. 0. ' 3 50. 0. 0. 0. 0. 0. 0. 3 55. 0. 0. 0. 0. 0. 0. 4 0. 0. 0. 0. 0. 0. 0. 4 5. 0. 0. 0. 0. 0. 0. 4 10. 0. 0. 0. 0. 0. 0. 4 15. 0. 0. 0. 0. 0. 0. 4 20. 0. 0. 0. 0. 0. 0. 4 25. 0. 0. 0. 0. 0. 0. 4 30. 0. 0. 0. 0. 0. 0. ' 4 35. r 4 40. 4 45. ' 4 50. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. RESERVE - DETENTION ROUTING ANALYSIS ALL PONDS AND BASINS, PLUS OFFSITE FLOWS 100-YR EVENT FILE: PRE-ALL.DAT LIDSTONE 8 ANDERSON, INC., CLD 10-28-1993 1 ** CONTINUITY CHECK FOR SUBCATCHMEMT ROUTING IN UDSWM2-PC MODEL *** WATERSHED AREA (ACRES) 22.410 TOTAL RAINFALL (INCHES) 2.880 TOTAL INFILTRATION (INCHES) .350 TOTAL WATERSHED OUTFLOW (INCHES) 2.371 TOTAL SURFACE STORAGE AT END OF STROM (INCHES) .158 ERROR IN CONTINUITY, PERCENTAGE OF RAINFALL .000 I i I 1 1 [1 1 1 lj I I I IRESERVE - DETENTION ROUTING ANALYSIS ALL PONDS AND BASINS, PLUS OFFSITE FLOWS 100-YR EVENT FILE: PRE-ALL.DAT LIDSTONE & ANDERSON, INC., CLD 10-28-1993 r WIDTH INVERT SIDE SLOPES OVERBANK/SURCHARGE NUTTER GUTTER NDP NP OR DIAM LENGTH SLOPE HORIZ TO VERT MANNING DEPTH JK MBER CONNECTION (FT) (FT) (FT/FT) L R N (FT) �301 209 8 2 PIPE .1 1. .1000 .0 .0 .024 .10 0 RESERVOIR STORAGE IN ACRE-FEET VS SPILLWAY OUTFLOW I .0 .0 .0 .8 .0 1.0 .2 1.1 .4 1.2 .6 1.3 .9 1.4 1.3 1.5 302 209 6 2 PIPE .1 1. .1000 .0 .0 .024 .10 0 �on0a S RESERVOIR STORAGE IN ACRE-FEET VS SPILLWAY OUTFLOW Z .0 .0 .0 1.0 .0 1.3 .2 1.5 .4 1.8 .6 1.9 '203 205 0 3 .1 1. .1000 .0 .0 .024 .10 0 206 106 0 3 .1 1. .1000 .0 .0 .024 .10 0 106 208 0 2 PIPE 1.3 357. .0050 .0 .0 .013 1.25 0 �207 107 0 3 .1 1. .1000 .0 .0 .024 .10 0 107 108 0 2 PIPE 1.5 32. .0140 .0 .0 .013 1.50 0 108 208 0 2 PIPE 1.3 71. .0110 .0 .0 .013 1.25 0 109 0 3 .1 1. .1000 .0 .0 .024 .10 0 '208 109 209 0 2 PIPE 1.3 248. .0360 .0 .0 .013 1.25 0 209 205 0 3 .1 1. .1000 .0 .0 .024 .10 0 205 304 0 3 .1 1. .1000 .0 .0 .024 .10 0 ' 304 0 7 2 PIPE .1 1. .1000 .0 .0 .024 .10 0 RESERVOIR STORAGE IN ACRE-FEET VS SPILLWAY OUTFLOW l�onG .0 .0 .2 2.8 .5 3.7 .9 4.4 1.4 5.0 2.0 5.5 ' 2.6 6.0 TOTAL NUMBER OF GUTTERS/PIPES, 13 r r r r IESERVE - DETENTION ROUTING ANALYSIS ALL PONDS AND BASINS, PLUS OFFSITE FLOWS 100-YR EVENT FILE: PRE-ALL.DAT LIDSTONE 8 ANDERSON, INC., CLD 10-28-1993 RANGEMENT OF SUBCATCHMENTS AND GUTTERS/PIPES GUTTER TRIBUTARY GUTTER/PIPE TR 106 206 0 0 0 0 0 0 0 0 0 0 107 207 0 0 0 0 0 0 0 0 0 0 ' 108 107 0 0 0 0 0 0 0 0 0 0 ' 109 208 0 0 0 0 0 0 0 0 0 0 203 0 0 0 0 0 0 0 0 0 0 3 205 203 209 0 0 0 0 0 0 0 0 5 206 0 0 0 0 0 0 0 0 0 0 6 207 0 0 0 0 0 0 0 0 0 0 7 ' 208 106 108 0 0 0 0 0 0 0 0 0 209 301 302 109 0 0 0 0 0 0 0 0 301 0 0 0 0 0 0 0 0 0 0 1 302 0 0 0 0 0 0 0 0 0 0 2 ' 304 205 0 0 0. 0 0 0 0 0 0 0 �YDROGRAPHS WILL BE STORED FOR THE FOLLOWING 10 POINTS 301 302 304 203 106 107 108 208 1 IBUTARY SUBAREA D.A.(AC) 0 0 0 0 0 0 0 0 0 3.2 0 0 0 0 0 0 0 0 0 2.9 0 0 0 0 0 0 0 0 0 2.9 0 0 0 0 0 0 0 0 0 6.1 0 0 0 0 0 0 0 0 0 5.1 0 0 0 0 0 0 0 0 0 22.4 0 0 0 0 0 0 0 0 0 3.2 0 0 0 0 0 0 0 0 0 2.9 0 0 0 0 0 0 0 0 0 6.1 0 0 0 0 0 0 0 0 0 16.3 0 0 0 0 0 0 0 0 0 6.6 0 0 0 0 0 0 0 0 0 3.7 0 0 0 0 0 .0 0 0 0 22.4 209 205 !RESERVE - DETENTION ROUTING ANALYSIS ALL PONDS AND BASINS, PLUS OFFSITE FLOWS 100-YR EVENT FILE: PRE-ALL.DAT LIDSTONE 8 ANDERSON, INC., CLD 10-28-1993 �YDROGRAPHS ARE LISTED FOR THE FOLLOWING 10 CONVEYANCE ELEMENTS THE UPPER NUMBER 1S DISCHARGE IN CFS ' THE LOWER NUMBER IS ONE OF THE FOLLOWING CASES: ( ) DENOTES DEPTH ABOVE INVERT IN FEET (S) DENOTES STORAGE IN ACRE -FT FOR SURCHARGED PIPE OR DAM. DISCHARGE INCLUDES SPILLWAY OUTFLOW. (I) DENOTES GUTTER INFLOW 1N CFS FROM SPECIFIED INFLOW HYDROGRAPH ' (D) DENOTES DISCHARGE 1N CFS DIVERTED FROM THIS GUTTER ?w s po'j 3 �IME(HR/MIN) 301 302 304 203 106 107 108 208 209 205 0 5. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. ' O(S) O(S) O(S) .0( ) .0( ) .0( ) .0( ) .O( ) .0( ) .O( ) 0 10. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. ' .0(S) 0(S) O(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 0 15. 1. 1. 1. 3. 2. 2. 1. 2. 2. 5. .O(S) O(S) 0(S) .0( ) .5( ) .4( ) .4( ) .0( ) .0( ) .0( ) ' 0 20. 1. 1. 2. 5. 5. 2. 2. 5. 7. 12. .1(S) O(S) .1(S) .0( ) 1.0( ) .4( ) .4( ) .0( ) .0( ) .0( ) 0 25. 1. 1. 3. 7. 5. 3. 3. 7. 10. 18. .1(S) 1(S) .2(S) .0( ) 1.3( ) .5( ) .6( ) .0( ) .0( ) .0( ) ' 0 30. 1. 2. 4. 16. 5. 7. 7. 10. 12. 32. .2(S) 1(S) .4(S) .0( ) 1.3( ) .8( ) 1.2( ) .0( ) .0( ) .O( ) 0 35. 1. 2. 4. 35. 5. 13. 7. 12. 15. 57. .5(S) .3(S) .8(S) .0( ) 1.3( ) 1.5( ) 1.3( ) .0( ) .0( ) .0( ) 0 40. 1. 2. 5. 29. 5. 13. 7. 12. 15. 50. .8(S) MS) 1.1(S) .0( ) 1.3( ) 1.5( ) 1.3( ) .O( ) .0( ) .O( ) 0 45. 1. 2. 5, 13. 5, 8, 7. 12. 15. 31, .9(S) .5(S) 1.3(S) .0( ) 1.3( ) .9( ) 1.3( ) .0( ) .O( ) .0( ) 0 50. 1. 2. 5. 10. 5. 5. 7. 12. 16. 27. .9(S) .5(S) 1.4(S) .0( ) 1.3( ) .7( ) 1.3( ) .0( ) .0( ) .0( ) 0 55. 1. 2. 5. 7. 5. 5. 7. 12. 16. 23. ' 1.0(S) .5(S) 1.6(S) .0( ) 1.3( ) .7( ) 1.3( ) .O( ) .O( ) .0( ) 1 0. 1. 2. 5. 5. 5. 3. 7. 12. 16. 21. 1.0(S) .6(S) 1.7(S) .0( ) 1.3( ) .5( ) 1.3( ) .0( ) .0( ) .0( ) POAG 2: {l: D,&4c-P ; O,.c- I,°c45 1 5. 1. 2. 5. 3. 5. 3. 7. 12. 16. 19. 1.1(S) .6(S) 1.8(S) .0( ) 1.3( ) .5( ) 1.3( ) .0( ) .D( ) .0( ) 1 ' 1 10. 1. 2. 5. 2. 5. 1. 7. 12. 15. 18. 1.1(S) .6(S) 1.8(S) .0( ) 1.3( ) .3( ) 1.1( ) .0( ) .0( ) .0( ) 1 15. 1. 2. 5. 2. 5. 2. 0. 8. 12. 14. 1.1(S) .6(S) 1.9(5) .0( ) 1.3( ) .4( ) .0( ) .0( ) .0( ) .0( ) ' 1 20. 1. 2. 6. 1. 5. 1. 2. 6. 9. 11. 1.1(S) .6(S) 1.9(S) .0( ) 1.3( ) .2( ) .5( ) .0( ) .0( ) .0( ) 1 25. 1. 2. 6. 1. 5. 1. 0. 6. 10. 11. 1.1(S) .5(S) 2.0(S) .0( ) 1.3( ) .3( ) .0( ) .0( ) .0( ) .0( ) 1 30. 1. 2. 6. 1. 5. 0. 2. 6. 9. 10. ' 1.1(S) .5(S) 2.0(S) .0( ) 1.3( ) .2( ) .4( ) .0( ) .0( ) .0( ) 1 35. 1. 2. 6. 1. 5. 1. 0. 6. 9. 10. ' 1.1(S) .5(S) 2.0(S) .0( ) 1.3( ) .3( ) .0( ) .0( ) .0( ) .0( ) 1 40. 1. 2. 6. 1. 5. 0. 1. 6. 9. 10. ' 1.1(S) .5(S) 2.1(S) .0( ) 1.3( ) .1( ) .4( ) .0( ) .0( ) .0( ) 1 45. 1. 2. 6. 1. 5. 1. 0. 6. 9. 10. 1.1(S) .5(S) 2.1(S) .0( ) 1.3( ) .3( ) .1( ) .0( ) .0( ) .0( ) 1 50. 1. 2. 6. 1. 5. 0. 1. 5. 9. 9. ' 1.1(S) .5(S) 2.1(S) .0( ) 1.3( ) .1( ) .3( ) .0( ) .0( ) .O( ) 1 55. 1. 2. 6. 0. 5. 1. 0. 5. 9. 9. 1.1(S) .5(S) 2.1(S) .0( ) 1.3( ) .2( ) .0( ) .0( ) .0( ) .0( ) 2 0. 1. 2. 6. 0. 5. 0. 1. 5. 9. 9. 1.1(S) .5(S) 2.2(S) .0( ) 1.3( ) .1( ) .3( ) .00 ) .00 ) .0( ) Pon Cia Vim:Ar-P ' Qiov-5.7c+5 ' 2 5. 1. 2. 6. 0. 2. 0. 0. 4. 7. 7. 1.1(S) .5(S) 2.2(S) .0( ) .6( ) .2( ) .0( ) .0( ) .0( ) .0( ) ' 2 10. 1. 2. 6. 0. 0. 0. 0. 1. 5. 5. 1.1(S) .5(S) 2.2(S) .0( ) .0( ) .0( ) .2( ) .0( ) .0( ) .0( ) 2 15. 1. 2. 6. 0. 0. 0. 0. 0. 4. 4. 1.0(S) .4(S) 2.2(S) .0( ) .1( ) .2( ) .0( ) .00 ) .0( ) .00 ) 2 20. 1. 2. 6. 0. 0. 0. 0. 0. 4. 4. ' 1.O(S) .4(S) 2.1(S) .0( ) A( ) .0( ) .2( ) .0( ) .0( ) .0( ) 2 25, 1, 2. 6. 0. 0. 0. 0, 0. 3, 3. ' 1.O(S) .4(S) 2.1(S) .0( ) .1( ) .1( ) .0( ) .0( ) .0( ) .0( ) 2 30. 1. 2. 6. 0. 0. 0. 0. 0. 3. 3. 1.0(S) .4(S) 2.1(S) .0( ) .1( ) .0( ) .1( ) .0( ) .0( ) .0( ) 2 35. 1. 2. 6. 0. 0. 0. 0. 0. 3. 3. ' 1.0(S) .4(S) 2.1(S) .0( ) .1( ) .1( ) .0( ) .0( ) .0( ) .0( ) 2 40. 1. 2. 6. 0. 0. 0. 0. .0. 3. 3. 1.O(S) .4(S) 2.1(S) .0( ) .1( ) .0( ) .1( ) .0( ) .0( ) .0( ) 2 45. 1. 2. 6. 0. 0. 0. 0. 0. 3. 3. 1.0(S) .4(S) 2.1(S) .0( ) .1( ) .1( ) .0( ) .0( ) .0( ) .0( ) ' 2 50. 1. 2. 6. 0. 0. 0. 0. 0. 3. 3. 1.0(S) .4(S) 2.1(S) .0( ) .1( ) .0( ) .1( ) .0( ) .0( ) .0( ) ' 2 55. 1. 2. 6. 0. 0. 0. 0. 0. 3. 3. 1.0(S) .3(S) 2.0(S) .0( ) .1( ) .1( ) .0( ) .0( ) .0( ) .0( ) ' 3 0. 1. 2. 6. 0. 0. 0. 0. 0. 3. 3. 1.O(S) .3(S) 2.0(S) .0( ) .1( ) .0( ) .1( ) .0( ) .0( ) .0( ) 3 5. 1. 2. 6. 0. 0. 0. 0. 0. 3. 3. .9(S) .3(S) 2.0(S) .0( ) .1( ) .1( ) .0( ) .0( ) .0( ) .0( ) 3 10. 1. 2. 6. 0. 0. 0. 0. 0. 3. 3. ' .9(S) .3(S) 2.0(S) .0( ) .O( ) .0( ) .1( ) .0( ) .0( ) .0( ) 3 15. 1. 2. 6. 0. 0. 0. 0. 0. 3. 3. ' .9(S) .3(S) 2.0(S) .0( ) .0( ) .1( ) .0( ) .0( ) .0( ) .0( ) 3 20, 1. 2. 6. 0. 0. 0. 0. 0, 3. 3. ' .9(S) .3(S) 2.0(S) .0( ) .0( ) .0( ) A( ) .0( ) .0( ) .O( ) 3 25. 1. 2. 6. 0. 0. 0. 0. 0. 3. 3. .9(S) .3(S) 1.9(S) .0( ) .0( ) .1( ) .0( ) .0( ) .0( ) .0( ) 3 30. 1. 2. 6. 0. 0. 0. 0. 0. 3. 3. ' 9(S) .3(S) 1.9(S) .0( ) .D( ) .0( ) .1( ) .0( ) .0( ) .0( ) 3 35. 1. 2. 5. 0. 0. 0. 0. 0. 3. 3. .9(S) .3(S) 1.9(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 3 40. 1. 2. 5. 0. 0. 0. 0. 0. 3. 3. .9(S) .2(S) 1.9(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) ' 3 45. 1. 2. 5. 0. 0. 0. 0. 0. 3. 3. .9(S) .2(S) 1.9(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) ' 3 50. 1. 2. 5. 0. 0. 0. 0. 0. 3. 3. .9(S) .2(S) 1.9(S) .0( ) .0( ) .O( ) .0( ) .0(') .0( ) .0( ) ' 3 55. 1. 2. 5. 0. 0. 0. 0. 0. 3. 3. .8(S) .2(S) 1.8(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .O( ) 4 0. 1. 2. 5. 0. 0. 0. 0. 0. 3. 3. ' .8(S) .2(S) 1.8(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 4 5, 1. 2. 5, 0. 0, 0, 0. 0. 3. 3. ' .8(S) .2(S) 1.8(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 4 10. 1. 2. 5. 0. 0. 0. 0. 0. 3. 3. .8(S) 2(S) 1.8(S) .0( ) .0( ) .0( ) 0( ) .0( ) .0( ) .0( ) 4 15. 1. 2. S. 0. 0. 0. 0. 0. 3. 3. ' 8(S) .2(S) 1.8(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 4 20. 1. 2. 5. 0. 0. 0. 0. 0. 3. 3. 8(S) .2(S) 1.8(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 4 25. 1. 2. 5. 0. 0. 0. 0. 0. 3. 3. .8(S) 1(S) 1.7(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 1 4 30. 4 35. ' 4 40. 4 45. 4 50. ' 4 55. ' S 0. 1 1 1 1. 2. 5. 0. 0. 0. 0. 0. 3. 3. .8(S) .1(S) 1.7(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 1. 1. 5. 0. 0. 0. 0. 0. 3. 3. .8(S) .1(S) 1.7(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 1. 1. 5. 0. 0. 0. 0. 0. 3. 3. .8(S) .1(S) 1.7(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 1. 1. 5. 0. 0. 0. 0. 0. 3. 3. .7(S) .1(S) 1.7(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 1. 1. 5. 0. 0. 0. 0. 0. 3. 3. .7(S) .1(S) 1.7(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) 1. 1. 5. 0. 0. 0. 0. 0. 3. 3. .7(S) .1(S) 1.6(S) .0( ) .O( ) .0( ) .0( ) .0( ) .0( ) .0( ) 1. 1. 5. 0. 0. 0. 0. 0. 3. 3. .7(S) .1(S) 1.6(S) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) .0( ) RESERVE - DETENTION ROUTING ANALYSIS ALL PONDS AND BASINS, PLUS OFFSITE FLOWS 100-YR EVENT FILE: PRE-ALL.DAT LIDSTONE 8 ANDERSON, INC., CLD 10-28-1993 *** PEAK FLOWS OF GUTTERS AND STORAGES OF RESERVOIRS *** ' CONVEYANCE PEAK STORAGE TIME ELEMENT (CFS) (AC -FT) (MR/MIN) 207 13. 0. 0 40. 107 13. 0. 0 35. 24. 0. 0 35. '206 108 7. 0. 0 30. 106 5. 0. 0 25. 208 12, 0. 0 35, ' 109 13. 0. 0 35. 302 2. 1. 1 5. 301 1. 1. 1 25. 16. 0. 1 0. '209 203 35. 0. 0 35. 205 57. 0. 0 35. ' 304 6. 2. 2 5. 1 1 INDPROGRAM PROGRAM CALLED 1 I [1 1 J a '' r I, [ ' { txI l ? t,<i n ,� u ;, P[ n < ti r• ;-bl ':1 3f f 5Y 4i Ft , [ r �. .r t o i, I. x a I a t Ir- - 0 1 14 i 4> 1 �,a I I, r t / II ., r r 4 ; -.a t t •1 r K; t [i F T lJ 1 a >,J '.. p.r `( 1 ". ar' 4 %: i a r S a f 1`. I,, Fi Y 1 y r 4. 1 r` T S _< i i J g, i \. ( L 1 t t Y t'. a l/ - 1 1 'L % A LI ! I * f C , ! 1 II l ,Ito [ j'i \ 1' i ! [ l l Y o [ t '[ .. f1 .0 .. _ 1 4 t. ' J y if t ,t t y - \. 'r 1 T f' f r I S { i t t 1 1 • 1 A .1 i - 1 • , , II 1 Y (J I ..{. 1t i t t J t . t ,I I•_I ; ., 1 1 ' T _J \ 1 y 1 1 Y II f t t ,tt M1F, I. ,=t^ i {. I \ t ( SI r t _. 7'I ... v t Y t ,,` 1 1 5 It ..! f '•I A A- 'rh t a (\ i r Kj, r i ,, I .', d I .t ♦ J l { .. O a1 ? { t i [ { 1 }. . - r.. 4 f, t p ,S' .v •. , sa f C 1 t! / ] S ` SWMM Output for Full Retention Analysis of Pond.1 't .r I r t i y ♦ f.. \ , r �.' y a \ .. :r. x. I r k .t i Y _tyt t t S t r r a t t..•r . r L L f " 4 ' yr "i 4,, - t.iaf yi, a .1 ♦ ! I 'y. �. T i • i' S `V t , '✓ / I i a p �,� z T ule a ( tr 1 ",.a y ! .! h 4x ,d I 'rr I+. ,, y I I f t i. Y; T 1 t f i. ( 1 y 'L 7 .' I" -♦�♦ 1 1J '.r ✓ , Yid '1"'t .. r t r I a.� Ij r . L 5 �.' y t I .F . �I ✓ rw_ [ S_ v xu t�' ✓ t f I 1 f. f f I 4• - a I r. t y. 1 ,, aI. L L L. r y. L 1 \. t , i 4 I -{• n ry c r / i r L t 1 t. ' 1! ,,, t v l t l / I l ['r• ..l' ''S a I. NI t 1 t r 4 ' ,. a I /1 r t 4 r w of 'r \ i t w a ! .r y 1f r t y r V t I ..`t f 0 y. c .., a S. 't, t .. J .. q i .. , .. .,` .. _ � . e. :. �� .,:', ..,. " _\.. - r. yf tea.' 4.` t. , 1, I rVl.l_ �7ST�arJ %�JIClb►5 aF ' ENVIRONMENTAL PROTECTION AGENCY - STORM WATER MANAGEMENT MODEL ' DEVELOPED BY METCALF + EDDY, INC. UNIVERSITY OF FLORIDA ' WATER RESOURCES ENGINEEERS, INC. (SEPTEMBER 1970) ' UPDATED BY UNIVERSITY OF FLORIDA (JUNE 1973) HYDROLOGIC ENGINEERING CENTER, CORPS OF ENGINEERS ' MISSOURI RIVER DIVISION, CORPS OF ENGINEERS (SEPTEMBER 1974) BOYLE ENGINEERING CORPORATION (MARCH 1983) ' TAPE OR DISK ASSIGNMENTS ' JIN(1) JIN(2) JIN(3) JIN(4) JIN(5) JIN(6) JIN(7) JIN(8) JIN(9) JINGO) 2 1 0 0 0 0 0 0 0 0 ' JOUT(1) JOUT(2) JOUT(3) JOUT(4) JOUT(5) JOUT(6) JOUT(7) JOUT(8) JOUT(9) JOUT(10) 1 2 0 0 0 0 0 0 0 0 NSCRAT(1) NSCRAT(2) NSCRAT(3) NSCRAT(4) NSCRAT(5) ' 3 4 0 0 0 1 1 ' WATERSHED PROGRAM CALLED *"» ENTRY MADE TO RUNOFF MODEL '•• PRESERVE - DETENTION ROUTING ANALYSIS POND 1 ONLY ' 100-YR EVENT NUMBER OF TIME STEPS 120 INTEGRATION TIME INTERVAL (MINUTES) 5.00 ' 1.0 PERCENT OF IMPERVIOUS AREA HAS ZERO DETENTION DEPTH FOR 25 RAINFALL STEPS, THE TIME INTERVAL IS 5.00 MINUTES ' FOR RAINGAGE NUMBER 1 RAINFALL HISTORY IN INCHES PER HOUR ' 60 .96 1,44 1.68 3,00 5.04 1.20 .84 .60 .48 .36 .36 .24 .12 .12 .12 .00 LBA, INC. 6-7-1993 9.00 3.72 2.16 1.56 .24 .24 .24 .24 I 1 PRESERVE - DETENTION ROUTING ANALYSIS POND 1 ONLY LBA, INC. 6-7-1993 100-YR EVENT 1 1 SUBAREA GUTTER WIDTH AREA PERCENT NUMBER OR MANHOLE (FT) (AC) IMPERV. O301 2300. 6.6 55.0 �a4&L 1 TOTAL NUMBER OF SUBCATCHMENTS, 1 TOTAL TRIBUTARY AREA (ACRES), 6.55 1 HYDROGRAPHS WILL BE SAVED FOR THE FOLLOWING 1 1 1 1 i 1 1 11 1 1 1 1 SLOPE RESISTANCE FACTOR SURFACE STORAGE(IN) INFILTRATION RATE(IN/HR) GAGE (FT/FT) IMPERV. PERV. IMPERV. PERV. MAXIMUM MINIMUM DECAY RATE NO .0200 .020 .250 .100 .300 .90 .43 .00180 1 1 SUBCATCHMENTS FOR SUBSEQUENT USE WITH UDSWM2-PC 1 PRESERVE - DETENTION ROUTING ANALYSIS POND 1 ONLY LBA, INC. 6-7-1993 100-YR EVENT ' HYDROGRAPHS ARE LISTED FOR THE FOLLOWING 1 SUBCATCHMENTS AVERAGE VALUES WITHIN TIME INTERVALS TIME(HR/MIN) 1 ' 0 5. 0. 0 10. 0. ' 0 15. 3. 0 20. 6. 0 25. 9. 0 30. 19. 0 35. 42. ' 0 40. 37. 0 45. 18. 0 50. 13. 0 55. 9. 1 0. 7. ' 1 5. 5. '1 10. 3. 1 15. 3. 1 20. 2. 1 25. 2. ' 1 30. 1. 1 35. 1. 1 40. 1. ' 1 45. 1. 1 50. 1. 1 55. 1. 2 0. 1. 2 5. ' 2 10. 2 15. 2 20. 2 25. 2 30. ' 2 35. 2 40. 2 45. ' 2 50. 2 55. 3 0. 3 5. ' 3 10. 3 15. 3 20. 3 25. 3 30. ' 3 35. 3 40. 3 45. 3 50. 3 55. 4 0. 4 5. 4 10. 4 15. 4 . 20. ' 4 25. 4 30. 0. 0. lip 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. ' 4 35. 4 40. 4 45. ' 4 50. ' 4 55, 5 0. ' 5 5. 5 10. 5 15. 5 . 20. 5 25. 5 30. 5 35. 5 40. ' S 45. 5 50. ' 5 55. 6 0. ' 6 5. 6 10. i 6 15. 6 20. 6 25. i 6 30. 6 35. r 6 40. 6 45. 6 50. 6 55. 7 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. ' 7 5. ' 7 10. 7 15. ' 7 20. 7 25. 7 30. ' 7 35. 7 40. 7 45. ' 7 50, 7 55. ' 8 0. ' 8 25. 8 30. ' 8 35. 8 40. 8 45. ' 8 50. 8 55. 9 0. 9 5. 9 10. ' 9 15. 9 20. ' 9 25. 9 30. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. ' 9 35. 0. 9 40. 0. 9 45. 0. ' 9 50. 0. 1 9 55. 0. 10 0. 0. 1 1 1 1 1 1 1 ' PRESERVE - DETENTION ROUTING ANALYSIS POND 1 ONLY L&A, INC. 6-7-1993 100-YR EVENT *** CONTINUITY CHECK FOR SUBCATCHMEMT ROUTING IN UDSWM2-PC MODEL ••• AREA (ACRES) 6.550 'WATERSHED TOTAL RAINFALL (INCHES) 2.880 ' TOTAL INFILTRATION (INCHES) .414 TOTAL WATERSHED OUTFLOW (INCHES) 2.344 ' TOTAL SURFACE STORAGE AT END OF STROM (INCHES) .122 ERROR IN CONTINUITY, PERCENTAGE OF RAINFALL .000 1 PRESERVE - DETENTION ROUTING ANALYSIS POND 1 ONLY LBA, INC. 6-7-1993 100-YR EVENT WIDTH INVERT ' GUTTER GUTTER HOP NP OR DIAN LENGTH SLOPE NUMBER CONNECTION (FT) (FT) (FT/FT) ' 301 0 2 2 PIPE .1 1. .1000 RESERVOIR STORAGE IN ACRE-FEET VS SPILLWAY OUTFLOW .0 .0 1000.0 .0 TOTAL NUMBER OF GUTTERS/PIPES, 1 1 1 1 1 SIDE SLOPES OVERBANK/SURCHARGE HORIZ TO VERT MANNING DEPTH X L R N (FT) .0 .0 .024 .10 0 ' PRESERVE - DETENTION ROUTING ANALYSIS POND 1 ONLY LBA, INC. 6-7-1993 100-YR EVENT 1 ' ARRANGEMENT OF SUBCATCHMENTS AND GUTTERS/PIPES .GUTTER TRIBUTARY GUTTER/PIPE ' 301 0 0 0 0 0 0 0 0 0 0 HYDROGRAPHS WILL BE STORED FOR THE FOLLOWING 1 POINTS 301 1 1 TRIBUTARY SUBAREA D.A.(AC) 1 0 0 0 0 0 0 0 0 0 6.6 1 ' PRESERVE - DETENTION ROUTING ANALYSIS POND 1 ONLY LBA, INC. 6-7-1993 100-YR EVENT ' HYDROGRAPHS ARE LISTED FOR THE FOLLOWING 1 CONVEYANCE ELEMENTS ' THE UPPER NUMBER IS DISCHARGE IN CFS THE LOWER NUMBER IS ONE OF THE FOLLOWING CASES: ( ) DENOTES DEPTH ABOVE INVERT IN FEET (S) DENOTES STORAGE IN ACRE -FT FOR SURCHARGED PIPE OR DAM. DISCHARGE INCLUDES SPILLWAY OUTFLOW. (I) DENOTES GUTTER INFLOW IN CFS FROM SPECIFIED INFLOW HYDROGRAPH (D) DENOTES DISCHARGE IN CFS DIVERTED FROM THIS GUTTER ' TIME(HR/MIN) 301 0 5. 0. .0(S) 0 10. 0. .O(S) ' 0 15. 0. .O(S) 0 20. 0. 1(S) 0 25. 0. .1(S) ' 0 30. 0. 3(S) 0 35. 0. .5(S) 0 40. 0. .8(S) 0 45. 0. .9(S) 0 50. 0. 1.0(S) 0 55. 0. 1.1(S) 1 0. 0. 1.1(S) 1 5. 0. 1.2(S) ' 1 10 ' 1 15. 20. ' 1 25. ' 1 30, 1 35. 1 40. ' 1 45. 1 50. 1 55. ' 2 0. ' 2 5. ' 2 10. 2 15, 2 20. 2 25. 2 30. 2 35. 2 40. 2 45. 0. 1.2(S) 0. 1.2(S) 0. 1.2(S) 0. 1.3(S) 0. 1.3(S) 0. 1.3(S) 0. 1.3(S) 0. 1.3(S) 0. 1.3(S) 0. 1.3(S) 0. 1.3(S) 0. 1.3(S) ' 2 50. 0. 1.3(S) ' 2 55. 0. 1.3(S) ' 3 0. 0. 1.3(S) 3 5. 0. ' 1.3(S) 3 10. 0, 1.3(S) 3 15. 0. ' 1.3(S) 3 20. 0. ' 1.3(S) 3 25. 0. 1 7.3(S) 3 30. 0. 1.3(S) 3 35. 0. 1.3(S) ' 3 40. 0. 1.3(S) ' 3 45. 0. 1.3(S) 3 50. 0. 1.3(S) 3 55. 0, 7.3(S) 4 0. 0. ' 1.3(S) 4 5. 0. ' 1.3(S) 4 10. 0. 7.3(S) 4 15. 0. 1.3(S) 4 20. 0. 1.3(S) 4 25. 0. 1.3(S) 4 30. 0. 1.3(S) ' 4 35. 0. 1.3(S) ' 4 40. 0. 1.3(S) 4 45. 0. 1.3(S) .4 50. 0. 1.3(S) 4 55. 0. 1.3(S) 5 0. 0. ' 1.3(S) 5 5. 0. 1.3(S) 5 10. 0. 1.3(S) I5 15. 0. 1.3(S) 5 20. 0. 1.3(S) 5 25. 0. 1.3(S) I 5 30. 0. 1.3(S) ' S 35. 0. 1.3(S) 5 40. 0. ' 1.3(S) 5 45. 0. ' 1.3(S) 5 50. 0. 1.3(S) 5 55. 0. 1.3(S) 6 0. 0. 1.3(S) 6 5. 0. 1.3(S) 1 ' 6 10. 0. 1.3(S) ' 6 15. 0. 1.3(S) t 6 20. 0. 1.3(S) 6 25. 0. 1.3(S) 6 30, 0. 1.3(S) 6 35. 0. ' 1.3(S) 6 40. 0. 1.3(S) 6 45. 0. 1.3(S) 6 50. 0. 1.3(S) 6 55. 0. 1.3(S) 7 0. 0. 1.3(S) ' 7 5. 0. 1.3(S) 7 10. 0. 1.3(S) 7 15. 0. 1.3(S) 7 20. 0. 1.3(S), 7 25. 0. 1.3(S) 7 30. 0. '1.3(S) 7 35. 0. 1.3(S) ' 7 40. 0. 1.3(S) 7 45. 0. 1.3(S) ' 7 50. 0. 1.3(S) ' 7 55. 0. 1.3(S) 8 0. 0. 1.3(S) ' 8 5. 0. 1.3(S) ' 8 10. 0. 1.3(S) 8 15. 0. ' 1.3(S) 8 20. 0. 1.3(S) 8 25. 0. ' 13(S) 8 30. 0. 13(S) i8 35. 0. 13(S) 8 40. 0. 13(S) 8 45. 0. 1.3(S) 8 50. 0. 13(S) 8 55. 0. 13(S) 9 0. 0. 1.3(S) 9 5. 0. 13(S) 9 10. 0. ' 13(S) 9 .15. 0. 13(S) 9 20. 0. 13(S) 9 25. 0. 13(S) I' 1 9 30. 9 35. ' 9 40. 9 45. ' 9 S0. 9 55. 10 0. 0. 1.3(S) 0. 1.3(S) 0. 1.3(S) ( W �61 � 4505-1.03 i I PRESERVE - DETENTION ROUTING ANALYSIS POND 1 ONLY L&A, INC. 6-7-1993 100-YR EVENT ' *** PEAK FLOWS OF GUTTERS AND STORAGES OF RESERVOIRS *** CONVEYANCE PEAK STORAGE TIME ' ELEMENT (CIS) (AC -FT) (HR/MIN) 301 0. 0. 0 10. 1 1 I 1 I 1 1 ENDPROGRAM PROGRAM CALLED 1 1 1 11 i 1. n 1 1 1 1 1 1 1 FI 1 . b L \ 1 ! . -! f L h ���,I�,: .. .. . . i0M�...� II .I , "�,I, � I-,.f1; .",� - ,I, �.�:: I-1.- a• L y 4 4 iY /. .� h'. \ f f > t ^ } re .4'. 1 L- ) ,t \ rr rl i. r '1. ,' rr li by jS�. .a ;Y }., .rl •TI\ I f e+ ir'1 r.'r y 1 iy., ' Y.. 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'I i t 1 r r . - ' a s .l, \ ,y .i t ? v , r+. t ) J 1' , y, J 1 I ..5 1 F 4 S' t I J i y x . c 5' L i 1 F .f. .. ! r t w� II i. A. . t 1 V _ \ l \ , t < t y, 1 M \ -1 \-L tT a . _{,p ,C . x , :+ t �{ F' `w - '. 5, l! 1 l ,r _ 2 t% r , ), t F Ir it �' ;2 , ,. �. '# ;. ,.4, " s - ' ENVIRONMENTAL PROTECTION AGENCY - STORM WATER MANAGEMENT MODEL DEVELOPED BY r UPDATED BY 1 rTAPE OR DISK ASSIGNMENTS r METCALF + EDDY, INC. UNIVERSITY OF FLORIDA WATER RESOURCES ENGINEEERS, INC. (SEPTEMBER 1970) MiA ArJAt4�S oF'}�-�a'Z rsLC--: Ye�wIDgyr UNIVERSITY OF FLORIDA (JUNE 1973) HYDROLOGIC ENGINEERING CENTER, CORPS OF ENGINEERS MISSOURI RIVER DIVISION, CORPS OF ENGINEERS (SEPTEMBER 1974) BOYLE ENGINEERING CORPORATION (MARCH 1983) JIN(1) JIN(2) JIN(3) JIN(4) JIN(5) J1N(6) JIN(7) JIN(8) JIN(9) .JINGO) 2 1 0 0 0 0 0 0 0 0 JOUT(1) JOUT(2) JOUT(3) JOUT(4) JOUT(5) JOUT(6) JOUT(7) JOUT(8) JOUT(9) JOUT(10) 1 2 0 0 0 0 0 0 0 0 NSCRAT(1) NSCRAT(2) NSCRAT(3) NSCRAT(4) NSCRAT(5) 3 4 0 0 0 WATERSHED PROGRAM CALLED 1 ' ••• ENTRY MADE.TO RUNOFF MODEL ••' PRESERVE - DETENTION ROUTING ANALYSIS POND 2 ONLY 100-YR EVENT NUMBER OF TIME STEPS 120 INTEGRATION TIME INTERVAL (MINUTES) 5.00 r1.0 PERCENT OF IMPERVIOUS AREA HAS ZERO DETENTION DEPTH FOR 25 RAINFALL STEPS, THE TIME INTERVAL IS 5.00 MINUTES ' FOR RAINGAGE NUMBER 1 RAINFALL HISTORY IN INCHES PER HOUR 60 .96 1.44 1.68 3.00 5.04 1.20 .84 .60 .48 .36 .36 .24 .12 .12 .12 .00 t r 1 1 r r r r r LBA, INC. 6-7-1993 9.00 3.72 2.16 1.56 .24 .24 .24 .24 ' PRESERVE - DETENTION ROUTING ANALYSIS POND 2 ONLY LBA, INC. 6-7-1993 100-YR EVENT 1 SUBAREA GUTTER WIDTH AREA PERCENT SLOPE RESISTANCE FACTOR SURFACE STORAGE(IN) INFILTRATION RATE(IN/HR) GAGE NUMBER OR MANHOLE (FT) (AC) IMPERV. (FT/FT) IMPERV. PERV. IMPERV. PERV. MAXIMUM MINIMUM DECAY RATE NO 22 302 1600. 3.7 63.0 .0200 .020 .250 .100 -.300 .90 .43 .00180 1 tTOTAL NUMBER OF SUBCATCHMENTS, 1 TOTAL TRIBUTARY AREA (ACRES), 3.69 HYDROGRAPHS WILL BE SAVED FOR THE FOLLOWING 1 SUBCATCHMENTS FOR SUBSEQUENT USE WITH UDSWM2-PC 2 11 i, i r I r 1 I PRESERVE - DETENTION ROUTING ANALYSIS POND 2 ONLY L&A, INC. 6-7-1993 100-YR EVENT 1 HYDROGRAPHS ARE LISTED FOR THE FOLLOWING 1 SUBCATCHMENTS AVERAGE VALUES WITHIN TIME INTERVALS Su�� atZ TIME(HR/MIN) 2 ' 0 5. 0. 0 10. 0. 0 15. 2. 0 20. 4. 0 25. 6. 0 30. 13. 0 35. 26. 0 40. 21. 0 45. 9. 0 50. 7. ' 0 55. 5. 1 0. 4. 1 5. 3. 1 10. 2. 1 15. 1. 1 20. 1. 1 25. 1. t1 30. 1. 1 35. 1, 1 40. 1. 1 45. 1. 1 50. 1. 1 55. 0. 2 0. 0. 2 5. ' 2 10. z 15. 2 20. ' z zs. 2 30. ' 2 35. 2 40. 2 45. 2 50. 2 55. 3 0. 3 5. 3 10. 3 15. 3 20. 3 25. 3 30. 3 35. 3 .40. 3 45. 3 50. 3 55. -� 4 0. 4 5. 4 10. 4 15. 4 20. 4 25. 4 30. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 4 35. ' 4 40. 4 45. 4 50. 4 55. 5 0. ' 5 5. 5 10. 5 15. 5 20. 5 25. 5 30. 5 35. 5 40. 5 45. 5 50. ' 5 55. 6 0. 6 5. 6 10. 6 15. 6 20. 6 25. 6 30. 6 35. 6 40. I 6 45. 6 50. 6 55. 7 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 7 5. ' 7 10. 7 15. ' 7 20. ' 7 25. 7 30. 7 35. 7 40. ' 7 45. ' 7 50. 7 55. 8 0. 8 5. 8 10. 8 15. 8 20. ' 8 25. 8 30. 8 35. 8 40. 8 45. 8 50. 8 55. 9 0. 9 .5. `! 9 10. 9 15.. 9 ..20. 9 25. 9 30. 1 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. ' 9 35. ' 9 40. 9 45. 1 9 50. 9 55. 10 0. 1 1 0. 0. 0. 0. 0. 0. ' PRESERVE - DETENTION ROUTING ANALYSIS POND 2 ONLY LBA, INC. 6-7-1993 100-YR EVENT *** CONTINUITY CHECK FOR SUBCATCHMEMT ROUTING IN UDSWM2-PC MODEL WATERSHED AREA (ACRES) 3.690 ' TOTAL RAINFALL (INCHES) 2.880 ' TOTAL INFILTRATION (INCHES) .340 TOTAL WATERSHED OUTFLOW (INCHES) 2.424 ' TOTAL SURFACE STORAGE AT END OF STROM (INCHES) .115 ERROR 1N CONTINUITY, PERCENTAGE OF RAINFALL .000 1 1 1 PRESERVE - DETENTION ROUTING ANALYSIS POND 2 ONLY LBA, INC. 6-7-1993 100-YR EVENT WIDTH INVERT GUTTER GUTTER NDP NP OR DIAM LENGTH SLOPE NUMBER CONNECTION (FT) (FT) (FT/FT) ' 302 0 2 2 PIPE .1 1. .1000 RESERVOIR STORAGE IN ACRE-FEET VS SPILLWAY OUTFLOW .0 .0 1000.0 .0 TOTAL NUMBER OF GUTTERS/PIPES, 1 SIDE SLOPES OVERBANK/SURCHARGE HOR1Z TO VERT MANNING DEPTH JK L R N (FT) .0 .0 .024 .10 0 i ' PRESERVE - DETENTION ROUTING ANALYSIS POND 2 ONLY 100-YR EVENT i ' ARRANGEMENT OF SUBCATCHMENTS AND GUTTERS/PIPES GUTTER TRIBUTARY GUTTER/PIPE LBA, INC. 6-7-1993 302 0 0 0 0 0 0 0 0 0 0 r. k' HYDROGRAPHS WILL BE STORED FOR THE FOLLOWING i POINTS 302 ki TRIBUTARY SUBAREA D.A.(AC) 2 0 0 0 0 0 0 0 0 0 3.7 ' PRESERVE - DETENTION ROUTING ANALYSIS POND 2 ONLY LBA, INC. 6-7-1993 100-YR EVENT ' HYDROGRAPHS ARE LISTED FOR THE FOLLOWING 1 CONVEYANCE ELEMENTS ' THE UPPER NUMBER IS DISCHARGE IN CIS THE LOWER NUMBER IS ONE OF THE FOLLOWING CASES: ( ) DENOTES DEPTH ABOVE INVERT IN FEET (S) DENOTES STORAGE IN ACRE -FT FOR SURCHARGED PIPE OR DAM. DISCHARGE INCLUDES SPILLWAY OUTFLOW. (I) DENOTES GUTTER INFLOW IN CIS FROM SPECIFIED INFLOW HYDROGRAPH (D) DENOTES DISCHARGE IN CFS DIVERTED FROM THIS GUTTER ' TIME(HR/MIN) 302 0 5. 0. ' .O(S) 0 10. 0. .0(S) ' 0 15. 0. .0(S) ' 0 20. 0. O(S) 0 25. 0. .1(S) 0 30. 0. 2(S) 0 35. 0. .3(S) 0 40. 0. .5(S) 0 45. 0. .6(S) 0 50. 0. 0 55. 0. .6(S) 1 0. 0. 7(S) 1 5. 0. .7(S) ' 1 10. 0. .7(S) ' 1 15. 0. .7(S) ' 1 20. 0. .7(S) ' 1 25. 0. .7(S) ' 1 30. 0. .7(S) 1 35. 0. .7(S) 1 40. 0. 1 45. 0. 1 50. 0. .7(S) ' 1 55. 0. .7(S) t 2 0. 0. .7(S) 2 5. 0. .7(S) 2 10. 0. .7(S) 2 15. 0. .7(S) 2 20. 0. .7(S) 2 25. 0. .7(S) 2 30. 0. .7(S) 2 35. 0. .7(S) 2 40. 0. .7(S) 2 45. 0. .7(S) ' 2 50. 0. .7(S) 2 55. 0. .7(S) 3 0. 0. .7(S) ' 3 5. 0. .7(S) ' .3 10. 0. .7(S) 3 15. 0. .7(S) 3 20. 0. .7(S) 3 25. 0. .7(S) 3 30. 0. .7(S) 3 35. 0. .7(S) 3 40. 0. .7(S) 3 45. 0. .7(S) 3 50. 0. .7(S) 3 55. 0. .7(S) 4 0. 0. .7(S) 4 5. 0. 4 10. 0. 4 15. 0. .7(S) 4 20. 0. .7(S) 4 25. 0. .7(S) ' 4 30. 0. .7(S) ' 4 35. 0. .7(S) ' 4 40. 0. .7(S) ' 4 45. 0. .7(S) ' 4 50. 0. .7(S) 4 55. 0. ' .7(S) 5 0. 0. ' .7(S) 5 5. 0. ' .7(S) 5 10. 0. .7(S) 5 15. 0. .7(S) 5 20. 0. .7(S) 5 25. 0. .7(S) 5 30. 0. 7(S) 5 35. 0. .7(S) 5 40. 0. .7(S) 5 45. 0. .7(S) 5 50. 0. .7(S) 5 55. 0. .7(S) 6 0. 0. .7(S) 6 5. 0. .7(S) ' 6 10. 0. .7(S) ' 6 15. 0. .7(S) ' 6 20. 0. .7(S) b 25. 0. .7(S) 6 30. 0. .7(S) 6 35. 0. 6 40. 0. .7(S) 6 45. 0. ' .7(S) 6 50. 0. .7(S) 6 55. 0. .7(S) 7 0. 0. .7(S) 7 5. 0. .7(S) 7 10. 0. .7(S) 7 15. 0. .7(S) 7 20. 0. .7(S) 7 25. 0. .7(S) 7 30. 0. .7(S) 7 35. 0. .7(S) 7 40. 0. .7(S) 7 45. 0. .7(S) ' 7 50. 0. .7(S) 7 55. 0. .7(S) 8 0. 0. .7(S) ' 8 5. 0. .7(S) ' 8 10. 0. .7(S) 8 15. 0. ' .7(S) 8 20. 0. 8 25. 0. 8 30. 0. .7(S) ' 8 35. 0. .7(S) 8 40. 0. 7(S) 8 45. 0. .7(S) 8 50. 0. .7(S) 8 55. 0. .7(S) 9 . 0. 0. 7(S) 9 5. 0. JCS) 9 10. 0. .7(S) 9 15. 0. .7(S) 9 20. 0. .7(S) 9 25. 0. .7(S) ' 9 30. ' 9 35. 9 40. ' 9 45. ' 9 50. 9 55. 10 0. 0. .7(S) 0. .7(S) 0. .7(S) 0. .7(S) 0. .7(S) 0. .7(S) 0. .7(S) ! TTsrgL lZtaalbGF V�L�MG TRW l 31J8F.�r1Z CW� = 5o5y.21 pr� PRESERVE - DETENTION ROUTING ANALYSIS POND 2 ONLY LBA, INC. 6-7-1993 100-YR EVENT *** PEAK FLOWS OF GUTTERS AND STORAGES OF RESERVOIRS *** CONVEYANCE PEAK STORAGE TIME ' ELEMENT (CFS) (AC -FT) (RR/MIN) 302 0. 0. 0 10. 1 1 ENDPROGRAM PROGRAM CALLED 1 LJ 1 I I 1 -4- ," i, T'' " I '' 4I , 1 TI , . . ­ � II ..1.�'1'.I, I, . .,�. ,I,- .�'. ��- a , % . , .,,,II: ', ( ,"I-, F I I art 'lf 'k . ",-:. , -..�_'-. ".' . . �,,-; �. � - , �. , � I . , ( " :' '-^ , '�_' ,%. � . F, .. �� � *' , I. . � , �-' - ". � . , . � ` , .." , � . . 11 I - I � � , -1.1 - ; - I - . ; " ' I , 7 � . . q I . I .. , � :' . .' , . . I ... . � - " - J - . , '.� . ­­ - 1. , r . , '. - 11 I k � . ,,, , I 11 � . .� �_ I I . ' , , , - , , �-' " - '•. -1, - � I - 11 , .. I . " � I - I . - 1. " .' .. ,' t' I �: , " - - , - It . . ... '� '�.' - � � .- " ". - I ' � I . '� � - ' I -I. I � . I ' � ", � '. - . � '. '. . � . , . , , � , , . � . 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I - ' - . . , � r , . ' , I : . - 6 . ., A' I -1 � .1 '� ' .. ' 6 " ' ' , "' . , , . r - � ,; 6 '� , .� , ' ' I . . , I 6 , ' I i , I � . ,I . . 1. . ; 6' � i � ' � , - �.� , ' * ' , I I � - ' : ; . . . . ,. ' �' , . � . . . . . . r- � � , . . . . . . . . I � . , ' '". ' � ' I ' , _ , , , , � , , ,.-. -, . ' � ' , ' 6, ' I " 6��L, , � , ". . � . I 1 6 1 , �6 , , ' 4' , . . ' 6 ,. . , , , . , . . - I . I 1� - -� . :_ . . , , , , I , . . I I I �* . 6 6 - I . . - - - � . � �, ; , - 1 1 . I I I 1. . - , , I.. � � .� : ' ' ' ' . I . , . . -, , , , � I .1 � , , , � , � r I � e , . , I I , . , _, _ � _ _ , , � , :� , , , _ . , ' ,-, 6 , - , � . , - . . , , ,�, " � . , . . � . � I r � � . I , I . I I -, , , - I . - I 6 6. I . , , , I I . , I . , , I ; . . , . , . , - I . , - 4p . I . I , . 1 1 - . ,. I , , . . I , ;, . I .1 . . - ; I . , . I '. � I , . r. I . . I � � 1 , . . 6 . . . , , � �, '. , : � . . . - - - � 6 � �� : . , : I . � . . . I- , . . � ' ' ' ' ' - 6 � ' ,,, , . .'f . 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I r+E 1- y�IC d.TL Cb -T'�T-16 EATURE CHECKED BY DATE SHEET OF /-uJA:L`f51s of 0Yr�r,IlG Zc� 5�,-10,.1 IJr CXtST,aG Z4"L� NL� rlC-7zCC'Q I>rm-CC Fvu>r-i AS-F�JI`-*= �JJ�.�;a�r-I rr-IA,16G / Z5 r--r z Cis aj5 Wvc-wl eze-/ = 5o7e¢:al - 1.Z>5 = 6633.7-(� vJ5 l,.JV02rr carV = 5a3ra.7-5 - I.oS = 5d35.7-0 C�iZ ovrF�,„IS P1zar�1 �,sis 1 3 Z J _ 35.7-0-33.zL 1 Z5 0.0156 P-r-IF-r Fora MAX. 0acL 1,1 t-�>Irb 3 = � 14AV. «rrFwM► Ficz>r-i ':Po,.1D f9 MA1c. ocsrF�ti-r Fuan �to,rD Z = Z'XeFs rnAX. eclTFce�.r r xuvrn b�=5, Crnns ��� IaC�s -� lS�e4� T;or-I va. rJ kt4kuYs,S (--f. . - 515) m.W. C-I ce.J,Jcer,r��L -24"4 ss"m "9ll �nce"��e �✓iilcal wa'Fi/SJr�Gre e(eva�onaF -the pe om �bb�sir,5 a� %%s fC� e'iYri^q �41��2�5 Sc�l,,�q ahichn hi9hrrlH�� J 1 70'i1,15 ! of i' ipe 15 1+c7 Svrc%q,�rcl . ererore Nhfr!15,io AAJ!r5E Ir"r,�;!' SONG, a i&�- ac�, SD I o, 75 IJ.s. @ -6 +E PIPE FK'. t9M POND, 1 2 5041.16 M.P. 01CHC-e-rr+knl -- ---------------- - ' REPORT OF STORM SEWER SYSTEM DESIGN Si��hon .%�Oi/ its �11,>vJ 14 /cc'� i='1r tror'1 MCIC-1 USING UDSEWER-MODEL 2-10.1993 DEVELOPED BY �One.5 3n qrt' �f''S1 C JAMES C.Y. GUO ,PHD, PE CN;(o`-°:>) DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER ,Si IioA Z ovT - IN COOPERATION WITH URBAN DRAINAGE AND FLOOD CONTROL DISTRICT DENVER, COLORADO "* EXECUTED BY LIDSTONE AND ANDERSON................................................... ON DATA 10-28-1993 AT TIME 16:47:01 PROJECT TITLE : ' THE PRESERVE -- ANALYSIS OF EXISTING 24" SIPHON * RETURN PERIOD OF FLOOD IS 99 YEARS ' RAINFALL INTENSITY FORMULA IS GIVEN 1•* SUMMARY OF SUBBASIN RUNOFF PREDICTIONS ------------------------------------------------------------------- TIME OF CONCENTRATION MANHOLE BASI VERLAND GUTTER BASI IN I PEAK FLOW ID NUMBER AREA • C To ( Tf (MIN (MIN) INCH/HR CFS 91.00 0.81 .00 0.00 4.75 3.85 1.00 81 0.00 0.00 0.00 3.85 U -6 DO 0.81 0.00 0.00 5.00 20.25 THE SHORTEST DESIGN RAINFALL DURATION IS FIVE MINUTES FOR RURAL AREA, BASIN TIME OF CONCENTRATION =>10 MINUTES OR URBAN AREA, BASIN TIME OF CONCENTRATION =>5 MINUTES AT THE 1ST DESIGN POINT, TC c=(10+70TAL LENGTH/180) IN MINUTES WHEN WEIGHTED RUNOFF COEFF=> .2 , THE BASIN IS CONSIDERED TO BE URBANIZED WHEN TO+TFc>TC, IT INDICATES THE ABOVE DESIGN CRITERIA SUPERCEDES COMPUTATIONS Desl9vi& c� ," SUMMARY OF HYDRAULICS AT MANHOLES I 515 --- ----- ---------------------- MANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GROUND WATER COMMENTS ID NUMBER AREA * C DURATION INTENSITY PEAK FLOW ELEVATION ELEVATION MINUTES INCH/HR CFS FEET FEET frL ----------------------------- 5�['z`r 91.00 0.00 0.00 0.00 16.40 5035.30 5040.40 NO 1.00 0*110 5.00 0,00 16.401 5045.50 5041.05 OK 1Jjc C- j l UI5 Pnc� or5'r'''J� 60.00 0.81 5.00 20.25 16.40 5045.50 5041.08 OK hflpn ur.i /[�u rfG MEANS WATER ELEVATION 1S LOWER THAN GROUND ELEVATION 1 \ , (mole 1 'Lr 'y p r 5 �i? i ►U i *** SUMMARY OF SEWER HYDRAULICS ' NOTE: THE GIVEN FLOW DEPTH -TO -SEWER SIZE RAT10= .8 ............................................................................... SEWER MAMHOLE NUMBER SEWER REQUIRED SUGGESTED EXISTING D NUMBER UPSTREAM DNSTREAM SHAPE DIA(HIGH) DIA(HIGH) DIA(HIGH) WIDTH ID NO. IO NO. (IN) (FT) (IN) (FT) (IN) (FT) (FT) 911.00 1.00 91.00 ROUND 19.60 21.00 24.00 0.00 70.00 60.00 1.00 ROUND 24.00 24.00 24.00 0.00 IMENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES MENSION UNITS FOR BOX SEWER ARE IN FEET OUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. GGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. FOR A NEW SEWER, FLOW WAS ANALYZED BY THE SUGGESTED SEWER SIZE; OTHERWISE, �ISITNG SIZE WAS USED ___________________________`---.._...--------------------------------- SEWER DESIGN FLOW NORMAL NORAML CRITIC CRITIC FULL FROUDE COMMENT ID FLOW 0 FULL 0 DEPTH VLCITY DEPTH VLCITY VLCITY NO. NUMBER CFS CFS FEET FPS FEET FPS FPS --------------------------------------------------------------------- 911.0 16.4 28.2 1.09 9.33 1.42 6.90 5.22 1.75 V-OK 70.0 16.4 16.4 2.00 5.22 1.42 6.90 5.22 0.00 V-OK jIDUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS ----. ----- ------ --------------------- ------------------- SEWER SLOPE INVERT ELEVATION BURIED DEPTH COMMENTS ID NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM % (FT) (FT) (FT) (FT) --"--------- 911.00 .................................................. 1.55 5035.20 5033.26 8.30 0.04 NO 0.00 5035.20 5035.20 8.30 8.30 OK �70.00 K MEANS BURIED DEPTH IS GREATER THAN REQUIRED SOIL COVER OF 1 FEET r '** SUMMARY OF HYDRAULIC GRADIENT LINE ALONG SEWERS I - --------------------------------------------------- SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW ID NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM. DNSTREAM CONDITION FEET FEET FEET FEET FEET FEET -------------- ... 911.00 125.00 125.00 5037.20 5035.26 5041.05 5040.40'PRSS'ED 70.00 1.00 1.00 5037.20 5037.20 5041.08 5041.05 PRSSIED �S'ED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUBCR=SUBCRITICAL FLOW ** SUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS .............................................................................. UPST MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE EWER MANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY ID NO ID NO. ELEV FT FT K COEF LOSS FT K COEF LOSS FT ID FT -- ----------------------------------- 911.0 1.00 5041.48 0.65 1.00 0.42 0.00 0.00 91.00 5040.4C 70.0 60.00 5041.50 0.01 0.05 0.02 0.00 0.00 1.00 5041.48 - �nv5VIW5rLm�o�aa LEND LOSS =BEND K* FLOWING FULL VHEAD 1N SEWER. LATERAL LOSS= OUTFLOW FULL VHEAD-JCT LOSS K*INFLOW FULL VHEAD FRICTION LOSS=O MEANS IT IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. IFRICTION LOSS INCLUDES SEWER INVERT DROP AT MANHOLE NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FT WOULD BE INTRODUCED UNLESS LATERAL K=O. FRICTION LOSS WAS ESTIMATED BY BACKWATER CURVE COMPUTATIONS. 1. 1* SUMMARY OF EARTH EXCAVATION VOLUME FOR COST ESTIMATE. THE TRENCH SIDE SLOPE = ------------------------------------I..------------...------------------ MANHOLE GROUND INVERT MANHOLE NUMBER ELEVATION ELEVATION HEIGHT �D FT FT FT ------------------------------------------------------------------------------- 91.00 5035.30 5033.26 2.04 1.00 5045.50 5035.20 10.30 60.00 5045.50 5035.20 10.30 ----------------------------------------------------------------------------- SEWER UPST TRENCH WIDTH DNST TRENCH WIDTH TRENCH WALL EARTH D NUMBER ON GROUND AT INVERT ON GROUND AT INVERT LENGTH THICKNESS VOLUME FT........FT........FT........ FT FT INCHES CUBIC YD 911.00 20.10 4.50 3.57 4.50 125.00 3.00 290.7 70.00 20.10 4.50 20.10 4.50 1.00 3.00 4.1 �TAL EARTH VOLUME FOR SEWER TRENCHES = 294.8017 CUBIC .YARDS SEWER FLOW LINE IS DETERMINED BY THE USER �RTH VOLUME WAS ESTIMATED TO HAVE BOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • B B=ONE FEET WHEN DIAMETER OR WIDTH <=48 INCHES B=TWO FEET WHEN DIAMETER OR WIDTH >48 INCHES lIF BOTTOM WIDTH <MINIMUM WIDTH, 2 FT, THE MINIMUM WIDTH WAS USED. BACKFILL DEPTH UNDER SEWER WAS ASSUMED TO BE ONE FOOT SEWER WALL THICKNESS=EOIVLNT DIAMATER IN INCH/12 +1 IN INCHES ' 1 1 I I 1 1 I 1, L- I , " I t,., r ,","-`t ' 1" —' �, '-4{ l , I � ' � , I " , -." . I r, �. I � .�. z. �. �-. - .- �. "�- " : "..%� .." 4 � I , , .I I r % 1111 "CV , ,I t I 4-1t ,,.-1 ".I-yI ;�.1'"4. II ,I 11.1 l i., e i "L ' ' " • ,Y 1, � , ! , f, I 1I , eI1, f t ' ', i ,.f t:'h t , , 4 , * � -,,ltC!' ,,� i- v c 7j, � , , '*'. ', I , , J ,,', r "' S ' ' .. I.�.. , � I ' . I - .� � �I! 2II , - -'. - .I z' ' I. t ' � , .' .,- �. I,. I �.' � . I' 2 I �" I > ,):1a i , , " IIt ', 4 , , , ti , ';., . 1 j," I f Lx qr ' " a' ,," ; � % r y } 4': r z , . -,- , ' i ' / �--� ? 4Proposed 30iSiphon : � r 4? �I.I " j�;t-f,� I �, % 4- �. t ,1. , I -a j "• ' 1• I}- I S , ,, iI, , A1 t,� " '" - .�1I . .'?y 1 , Ih 9 � (-, n � I' r .re,Ij z J I , ,"I , 'u-a � �-I � ,I-' 4 , �.0, 1, aI � :qI.1II ) I- ,, I,."-" ,� , � � .' 0I. ;1'.1, .7 ;' " 1 I. II 1,t- !s"' L,*: , t a , 'r ,i rN '. c .1 :" { i. -1'.III , , ' ` - . .I I... .-, .., I I !�Ii 4 t ,, ,1 1 , ,; ' ' - .,' .'' . - I . If -, . 1, I . ' � .. I I . ll� .� - ,% I',", "." . , � , �.�. � , v " - - �' - , " - , 1, I , , � . 'i , . - , "! � I I . . I - , , � " , I I � I I � - " . t , z ,,, , : 6 �' � , : � '-, . I I "I z I , .. . . & �' . . . . . ,. � � I I I � I '; - - I - r - " , I . I :1 I , , ��4'� ' - , " - ' - " � . . � � I .' ,- .1 �' " . I - � I " �� �"- ;- , ,? ,".t� ' . . ....-, \ ;.' ." , b 1,. ,-.t If < ,'�I.. , " "*.tl ., ,, 1':,,.. , . .; I' TL,dslone & Anderson. 11 _ IgctA WNER-PROJECT BY DATE PROJECT NO. THE - Esc�vC ejlL `73 1 <ic> C. I CHECKED BY DATE I SHEET OF ���-PogC17 S,t�F1oti1 uwiDC-iL NC�1 ,' IC^QOC� L�fTCH (�o,Z •5•�3�/tiS,..1 3 F�t�..loF�� 35.Zo- 31.ao = o . C>z-7-7 f r / F-r v�S 1,.1�/eLT' RE1/. SD35.2D IzZ�`1 /zz.-79 F"r IZC� So�►o. a t-TLc1l1 LA 'Silr'it-1 MAX. wk�R 14 �o,JD j�"a•� MkX. �v,loFF Fin SuLpti,.J 3 = j'3"OFS Fimm t1L�,-�J 2(S- 5/5) —t-at. . B lam -*�- rt.a.'a9z 0oWamrr7,,'I. 30" Q�-Zeiz Se, l *9zz4 S�yo,a �a LEI zGl/HSL LQ t-I.N.'�lz Ir soilI.o9 c . ),14. oz4 r�a?rs5a-I I.�� �,nre ant ��,%ical wofcr5�r�,/e elEdAhon Dt crfc-72a`I -f{,eplpe fmm &+s�r�3 E✓i�P�,n� MH�'o� �5 — so�ra,Sr 1,�s h, h!r ��wn s��11.�� • _ 4ke �lpe 15 )1c45vrc�crge, � . 'r++6 'r, - aM vKA� _ crrrCfc,.iG JHIc 1 a,G.tcY ' REPORT OF STORM SEWER SYSTEM DESIGN ' USING UDSEWER-MODEL 2-10-1993 DEVELOPED BY ' JAMES C.Y. GUO ,PHD, PE DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER IN COOPERATION WITH URBAN DRAINAGE AND FLOOD CONTROL DISTRICT DENVER, COLORADO 1 *** EXECUTED BY LIDSTONE AND ANDERSON................................................... ON DATA 10-25-1993 AT TIME 11:33:50 ** PROJECT TITLE ' THE PRESERVE -- DESIGN OF THE PROPOSED SIPHON t* RETURN PERIOD OF FLOOD 1S 99 YEARS ' RAINFALL INTENSITY FORMULA IS GIVEN r* SUMMARY OF SUBBASIN RUNOFF PREDICTIONS --------------'..---- TIME OF CONCENTRATION MANHOLE BASIN----.QYERLAND GUTTER BASIN/RAIN I PEAK FLOW ID NUMBER AREA * C To (P1TT Tf (MIN MIN) INCH/HR CFS 1--------------------------- ........................... ......----........ 92.00 0.81 .00 0.00 4.75 3.85 24.00 .81 0.00 0.00 0.00 3.85 0 0.81 0.00 0.00 5.00 43.21 QY51t; 0-' -I He'p/-opo5aj 3b"O sfepori the ,��a Mere>� L)If�, -- File; S,p6oR.O,-�T -. D051gr1 Jl-zc arye IsltvpA°5 ylVenbeeLw. THE SHORTEST DESIGN RAINFALL DURATION IS FIVE MINUTES IOR RURAL AREA, BASIN TIME OF CONCENTRATION =>10 MINUTES OR URBAN AREA, BASIN TIME OF CONCENTRATION =>5 MINUTES AT THE 1ST DESIGN POINT, TC <=(10+TOTAL LENGTH/180) IN MINUTES WHEN WEIGHTED RUNOFF COEFF=> .2 , THE BASIN IS CONSIDERED TO BE URBANIZED WHEN TO+TF<>TC, IT INDICATES THE ABOVE DESIGN CRITERIA SUPERCEDES COMPUTATIONS ** SUMMARY OF HYDRAULICS AT MANHOLES 5,>bh:• �n � r�•, --------------------------------- --- ---------------------------- �MANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GROUND WATER COMMENTS D NUMBER AREA • C DURATION INTENSITY PEAK FLOW ELEVATION ELEVATION MINUTES INCH/HR CFS FEET FEET --- --------- 92.00 0.00 0.00 0.00 35.00 5035.30 5040.20 NO � tdld o m4k• K -a-. �!a=ri5or feu ck✓c�/ivn. 24.00 0.00 5.00 0.00 35.00 5045.50 5041.09 OK MGnhale o.` uls Pno r< 51N Ion 60.00 0.81 5.00 43.21 35.00 5045.50 5041.14 OK FiL{7{Tov�iv)�ifgowed byL)DSr�r/• MEANS WATER ELEVATION IS LOWER THAN GROUND ELEVATION 1. SUMMARY OF SEWER HYDRAULICS NOTE: THE GIVEN FLOW DEPTH -TO -SEWER SIZE RATIO= .8 ------------------------------------------------------------------------------- �SEWER MAMHOLE NUMBER SEWER REQUIRED SUGGESTED EXISTING D NUMBER UPSTREAM DNSTREAM SHAPE DIA(HIGH) DIA(HIGH) DIA(HIGH) WIDTH ID NO. ID NO. (IN) (FT) (IN) (FT) (IN) (FT) (FT) I9224.00 24.00 92.00 ROUND 23.36 24.00 30.00 0.00 70.00 60.00 24.00 ROUND 30.00 30.00 30.00 0.00 LMENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES DIMENSION UNITS FOR BOX SEWER ARE IN FEET IQUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. GGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. FOR A NEW SEWER,. FLOW WAS ANALYZED BY THE SUGGESTED SEWER SIZE; OTHERWISE, IISITNG SIZE WAS USED . ------------------------------------------------------------------------------- SEWER DESIGN FLOW NORMAL NORAML CRITIC CRITIC FULL FROUDE COMMENT ID FLOW 0 FULL DEPTH VLCITY DEPTH VLCITY VLCITY NO. NUMBER CFS CFS FEET FPS FEET FPS FPS - ------ -------- -------- -------- -------- ---------------- -------- ----- -- r 9224.0 35.0 68.4 1.27 14.03 2.01 8.29 7.13 2.48 V-OK 70.0 35.0 35.0 2.50 7.13 2.01 8.29 7.13 0.00 V-OK FOUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS -------------- SEWER SLOPE INVERT ELEVATION BURIED DEPTH COMMENTS ID NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM '-------------' % .....----...---------_._._.--------...._------..._ (FT) (FT) (FT) (FT) 9224.00 2.77 5035.20 5031.80 7.80 1.00 NO 70.00 0.00 5035.20 5035.20 7.80 7.80 OK IK MEANS BURIED DEPTH IS GREATER THAN REQUIRED SOIL COVER OF 1 FEET ;" SUMMARY OF HYDRAULIC GRADIENT LINE ALONG SEWERS q/s 1 ---------------------------------------------------------------------------- �SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM DNSTREAM CONDITION FEET FEET FEET FEET FEET FEET 9224.00 122.79 122.79 5037.70 5034.30 5041.09 5040.20 PRSS'ED 70.00 1.00 1.00 5037.70 5037.70 5041.14 5041.09 PRSSIED ,SSIED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUBCR=SUBCRITICAL FLOW *** SUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS ----------------------------------------------------------------------------- UPST MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE 'SEWER MANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY ID NO ID NO. ELEV FT FT K COEF LOSS FT K COEF LOSS FT 1D FT --------------------------------------------------------------- �224.0 24.00 5041.88 0.89 1.00 0.79 0.00 0.00 ------- 92.00 ------ 5040.20 - I5,WW 1V5SLin PonA B 70.0 60.00 5041.93 0.01 0.05 0.04 0.00 0.00 24.00 5041.88 - Energy a+- MCI+ A 4 'BEND LOSS =BEND K* FLOWING FULL VHEAD IN SEWER. LATERAL LOSS= OUTFLOW FULL VHEAD-JCT LOSS K*INFLOW FULL VHEAD FRICTION LOSS=O MEANS IT IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. 'FRICTION LOSS INCLUDES SEWER INVERT DROP AT MANHOLE NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FT WOULD BE INTRODUCED UNLESS LATERAL K=O. FRICTION LOSS WAS ESTIMATED BY BACKWATER CURVE COMPUTATIONS. 1* SUMMARY OF EARTH EXCAVATION VOLUME FOR COST ESTIMATE. THE TRENCH SIDE SLOPE = 1 --------------------------------------------------------------------- MANHOLE GROUND INVERT MANHOLE ID NUMBER ELEVATION ELEVATION HEIGHT FT FT FT ---------------------------------------- 92.00 5035.30 5031.80 3.50 '24.00 5045.50 5035.20 10.30 60.00 5045.50 5035.20 10.30 ----------------------------------------------------------------------------- SEWER UPST TRENCH WIDTH DNST TRENCH WIDTH TRENCH . WALL EARTH ID NUMBER ON GROUND AT INVERT ON GROUND AT INVERT LENGTH THICKNESS VOLUME FT.____...FT_....__.FT_____ FT FT INCHES CUBIC YD 9224.00 19.52 5.08 5.92 5.08 122.79 3.50 301.4 ' 70.00 19.52 5.08 19.52 5.08 1.00 3.50 4.1 TOTAL EARTH VOLUME FOR SEWER TRENCHES = 305.4917 CUBIC YARDS 5/J IWER FLOW LINE IS DETERMINED BY THE USER RTH VOLUME WAS ESTIMATED TO HAVE BOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • B B=ONE FEET WHEN DIAMETER OR WIDTH <=48 INCHES B=TWO FEET WHEN DIAMETER OR WIDTH >48 INCHES 'IF BOTTOM WIDTH <MINIMUM WIDTH, 2 FT, THE MINIMUM WIDTH WAS USED. BACKFILL DEPTH UNDER SEWER WAS ASSUMED TO BE ONE FOOT SEWER WALL THICKNESS=EOIVLNT DIAMATER IN INCH/12 +1 1N INCHES 1 1 11 I I� [J f r , t- - r i a .t--a' +,. ,x .., Ae I., r I ,.•sae } .:r" Y i 4 1 t i14 S ti 11 , r :•» .+, f ', A kF r i .S ♦, '.. t a + � L r f -+ �. f r -}:' :. ." ', -, v i .r` •,, r+.\ } t4zt: t -.•>I r ( .. . .i e�, 1. ,t .�. . . ,: > . F - s. A r 4 a: r 1 r T ff t Y t t o .Y r { }'' l i C .t R I ,, ♦ ') . f . . v - f .11. , ., 4, ' " . " T it 1, r i t n e F\ 1" ` 6 r\'a..fN ;f y ,/.. 4 _ y '�1 ' 1 r ,', " 6I.r} 4 r 't r i. V r f 8 . T 4a .. {' .t 4 YA i S :- t L %a Y i �i Y l t ry t \ "i .1 F c t .,. J .•[ r 1.\ ,(. , i t i. tq' ,\ :\ .tt�l .t t.. t + �Ir I f 1. I \ x r t " f �y f s'.'. �. R. @ is Y 1L. i k, a .•� a r .. } J i i� J. k •a ,r .} \>J au Aix. t+ \ ,t';4 'r,. J { v :M1: F T�- r ..�^.' :j Y f ra r•All_"•.`'i. 4, t \ r _. -t t. -1 K { , x t ..� v r, r f xt l` . A o P Y f f sj r i t t o I'.S a r , :i , y '` e t . a t! M1 f 1 e 1 a' 1 t .. *} , a t 1 i:` .,. d Y t x f 4 f ! f r,'' r e 1J , 10 I r ' ;' a Y APPENDIX' C. r `D a �; r ` f Y o f A .' 01 . e i .` r e aP 1` ' vfA r ..i f A v r. H_ ydraulic Grade: I:ine Calculations ' L{. i e. Y '.. i \^t is 1• J, 1 1 ,y W i „. r .r` s S1 h i. t I r l - K 1 ' } "` I M1• .`" 1 , i r v Y f I t f 4 i .f t t - 't k i, I. ' t i "r1 f 4 'r F y `r r i 1 T "1 . ram- r _ 4 1 t y t -t r. f Y y.' °^i `t. t ^ - i A i t { i { W t .I ,, , J r e ' i 1 7 r f a,, r< r, L � f '4. l f f r f, .i` 9 ..J Y , . A f r t l ILI.A. 11( ♦ i I l,, I `-1 1' r L 1. t r f 1 \ ,,I 4 I. �1. r I, i. _.1,,_ , 4 �. \ .b f, f .t - i l cY ! : J vl t t - r t 'Y t v`f '`, it r .1 A f , .- 'F 1 l l h 12 l r t i.' i S } F r .t rr .'�. e r r i <.+'" i l '' ` `, Y 1 S AI ..M M . r.. iy �r f .�� 1"Y., a. r'.. t \. I 'r �1 i. + .4 L t '�+>': i rl Z., r `. 5 I.f .t ( Y - f y., i ';.' r. + C, ,' 1, i. {, n, 1'! ,v U e. .,) L 4.•a-.} -t ° y;; _ t'x ! r er :a -a t 5 c 1 / ,1 \ -'' •. li nj'1: /1 NIj. l� - L ", F f' 1 }. ! Y .. :l � {!Y y ' } « -� r ^ r :, s ,. F J f ' ,. z r t.. / I. ,_ dyI ` 1' t . -i -.S" '4 , ... t,j e,`a i.' " ,. :. _ 1 .-- x .. ti ♦ .. A-! .. • T .♦ t — t. ^ / T 1 .. — ' ,. .r '' l 1 « -ry i, J 1 .'h } �,, J 3. h •It I'L• J 1 Y LR , tr ! .Y rv' EI t / 51 I " „ "i< 1 - j . s.4 .... / � l I. f r F L 1 ~ • 7 J 1 a t f Y/ 3 ] J.. e y J 1 4 1 2 �} 1 tf F it . F •j - M ,, �., a, i, 3 M J} �ln 1 y '> w t t t ! + i .- l 'J. i7 b r -� G -. .« "''. . I \ I - -, J vJ . !!.'l.s r [.. ..k.r / ^ . . T: 1',. n,a..'. P.: t XJ ..:_ �l n+ F11s, i' A a.`1 .� Manhole C-1 to Ponds 1 and :2r - A } 'x r d. r+ , 5 R J' I'i}"4' h ,ti , t c+ v t /t r', F S 'i f C 1 e t t .. .l f f. s_ k _, 7 � 1;,. t A... t t r,. c n, .> J ,x �' t ... i .. ". ♦t, S - Yam_ 1 • -'+' C i. ! f .I l z 9 s u ,• < 5 1 1 Tr ., c 1 ,.:a , ., 1 ,.x ., , 4 '� t \ K. •'/, 4 +r )rft e f •. } A -d. { 4 j• } *. 1 e 1 Y `1t- ;Y,I t I.I35 L, r '.. f J,• .L ,,F a}�t t.{a _', � s•. 1. •,, i' } - ! 'l th4 t.f 1 \ } j T {, a\r ,Kt e t I1 a', ,y rl * [ Y 1. t , ,.\1 t I ! •t ♦ 1 ( J Ca' ^; Y.!,- ) h ♦ L4 ! t r" 4 t f ! _ 1 f ..4 " )O 1 f' i' .I i ,r L'y ♦ +.ct .�•, + r' i' 4,. .t. ? . a `..,,� t t T )1 .\, .J ♦5`I i ,. S ` i ,f` \ I I �.J S l ' x} _. ... t 1 y .- I • , ♦„ , f '.Y a 1 - " L 1 1 Y — .f IY )' .r f ,,I 1 1 1 L.1 ,.J J,.. ..s a .1. _ r i •., S , P '' t S . .+ S• .'.t 1 5 L at l t t t S - /I \ i r ./ 1 ,a . c 4 -. '_ t .'' 'T , ! +1 1 ).f tt y / t .. F '.). tL` zl % , Y. .n♦ o{-11 'J a i; ! l� � .J .,F 1, 't ili - ',� r?t• . _1♦ t a r r 'f J >♦ f r �S � u. i s :t; ,I 1I^ PWole e-1 to 1a+c a the Preserve Stormseuer Analysis - Pond 8 to Ponds 1 2x�K CO-TST-16.1 08-30-1993 Lidstone & Anderson Inc CLD 1 15 , 20 2 2 , 1 , .85 , 500 , 500 , .2 , N ' 1 100 1.4 , 28.5 10 .786 11 1 5045.5 , 0 1, 12 0 0 0 3.4 , 0 , 16.6 .65 , 0 0 0 0 0r 2,5055.0,12 1,23000 '3.4 , 0, 16.6 .65, 0 0 0 00� 3, 5057.0, 23 2, 34,35 0 0 3.4 , 0, 10.2 .65 , 0 0 0 0 0 4, 5050.5 34 1, 450, 0 0 0 1.5 , 0 , 6.5 .6500000 0, 5030.5 450, 0, 0 0 0 0 1.5 , 0 , 3.7 .65000,00 '5,5057.035 1,56000 1.9 , 0, 3.7 .65 , 0 0 0 0 0 6,5059.556 1,67,000 1.9 , 0, 3.7 .65 , 0 0 0 0 0 7,5059.567 1,78000 1.9 , 0, 3.7 .65 , 0 0 0 0 0 8, 5059.5 78 1, 89 0 0 0 1.9 , 0 , 3.7 .65 , 0 0 0 0 01 9, 5055.0 89 1, 951, 0 0 0 1.9 , 0 , 3.7 .65 , 0 10 0 0 0 '51, 5055.0 951, 0, 0 0 0 0 1.9 , 0, 3.7 , .65 , 0 0 0 0 0 10 '12 101 ,2.0 5046.36 .011 1 0 23 96 ,1.0 5047.72 .011 .46 0.35 , 34 130 ,1.0 5049.22 .011 .46 0.90 , 450, 1 ,0,1 5049,22 .011 .25 0 , 35 89 ,1.0 5048.81 .011 .46 0 56 215 ,1.0 5051.16 .011 .08 0 , 67 , 98 ,1.0 5052.34 .011 .08 0 , '78 76 ,1.0 5053.30 .011 .25 0 89 78 ,1.0 5054.28 .011 .25 0 , 951, 1 ,0.1 5054.28 .011., .25 0 1 Man(7J�e C-1_ 1,�ki5fi � S��ho� liriC^i'� WE -I N,r iOreyrve 5>`OrmSe,�Q� Fnalyy� mar,W4 1-D- I Man hole 1-D'« Trilef-ga :ik" ov�le4-) Tnle„�0:5— Mclnl7vle 40 M4>~tivle �-�'a M4ni�J�e a-�'3 Mantivle a->�-'� TnPT�tg (,lhc ^Oa ��le'� r �4S q�- Oil 1 , 15 , 0— ?Pp✓ 4M L�u� siphonfo MA 1DA 1 15 0— F� pe%iom MN ?-D-14a Mai '_1 •D <7 //�� 1, 15 0— P,te�roM m 4 1-D-d is Inlef q l�0^d�-4) 1 15 0 — Yrllil •LA55 4f'FDAJ" 1 , 15 0 — Roe -from M►% �-a-a fo M4 1 , 15 . 0 — Ppe%-c.n Mg 9-9-.4e MN a -A a 1 15 0 ?-pe Din MA-3-A-a ?a rlli a-�'3 1 , 15 , 0 — ?,pv_.{rom M92-4-3i~0 Nd a-A{I 1 15 0 — P.oe Prom Mld a-A-4 4o I.4f.96 (Po4J#9) 1 15 , 0 — YTnk�- Loss 4 'V6nd i-•7 I 4 54i�rm5ewer-ekmen+5 ('re vse,� -os �rmvla4 rr,le�loss . -P fen jA ?rJ -slope has no ' mica l r iPJar.C<. ' McglWe N fv �ond5 landa REPORT OF STORM SEWER SYSTEM DESIGN ' USING UDSEWER-MODEL 2-10-1993 DEVELOPED BY ' JAMES C.Y. GUO ,PHD, PE DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER IN COOPERATION WITH URBAN DRAINAGE AND FLOOD CONTROL DISTRICT DENVER, COLORADO *** EXECUTED BY LIDSTONE AND ANDERSON................................................... ON DATA 10-04-1993 AT TIME 05:31:32 ** PROJECT TITLE ' The Preserve - Stormsewer Analysis - Pond B to Ponds 1 2 8 3 I** RETURN PERIOD OF FLOOD IS 100 YEARS ' RAINFALL INTENSITY FORMULA IS GIVEN I** SUMMARY OF SUBBASIN RUNOFF PREDICTIONS -----------•--------- TIME OF CONCENTRATION MANHOLEBASIN OVERLAND GUTTER BASIN RAIN PEAK FLOW ID NUMBER AR * C To (MIN) Tf (MIN) Te (MIN) /HR ....-•• - CFS 1 - 1.00 10.79 ---- 0.00 ------- 0.00 •- ----- 0 4.75 51.24 2.00 10.79 0.00 0.00 4.75 51.24 3.00 6.63 0.00 0. 0.00 4.75 31.48 4.00 4.22 0.00 0 0.00 4.75 20.06 50.00 2.41 0.00 0.00 188.47 0.62 1.50 ' SZ 60 0.00 0.00 00 4.75 0.0 4.75 11.42 11.42 70 0.00 0.00 .75 11.42 80 0.00 0.00 4. 11.4290 0.00 0.00 4:75 1.42510 0.00 136.92 0.79 1. SHORTEST DESIGN RAINFALL DURATION IS FIVE MINUTES FRE-1. or, 5�(m5ew/ &l y5i5 'DENVER REGIONAL DRAINAGE CRITERIA WAS NOT USED TO CHECK ,THE COMPUTATION OF TIME OF CONCENTRATION 0 *** SUMMARY OF HYDRAULICS AT MANHOLES '------------------------------------------------------------------------------- MANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GROUND WATER COMMENTS ID NUMBER AREA * C DURATION INTENSITY PEAK FLOW ELEVATION ELEVATION ' MINUTES INCH/HR CFS FEET FEET --------------------------------------------------------------------------- 1.00 0.00 0.00 0.00 3.40 5045.50 5043.83 - OK ' 2.00 0.00 189.20 0.00 3.40 5055.00 5045.85 OK �.00 0.00 188.53 0.00 3.40 5057.00 5047.21 OK 4.00 0.00 188.48 0.00 1.50 5050.50 5048.47! OK ' 50.00 2.41 188.47 0.62 1.50 5050.50 5048.58 OK 5.00 0.00 138.44 0.00 1.90 5057.00 5048.11 OK 6.00 0.00 137.74 0.00 1.90 5059.50 5050.46 OK 7.00 0.00 137.43 0.00 1.90 5059.50 5051.64 OK ' 8.00 0.00 137.18 0.00 1.90 5059.50 5052.60 OK 9.00 0.00 136.93 0.00 1.90 5055.00 5053.58 OK 79 1 90 5055 00 5053 69 OK 9reh <waler-5- � ce eleva6a de�*IeJ b?erif a,l W,5 , Fle*%hOA at 'v% tree o; I�onci 1 oJile� orr ice W,S, ale✓Aon a� Dh ace CT Fond a ow*onAce, 51.00 2.41 136.92 /1 I 'OK MEANS WATER ELEVATION IS LOWER THAN GROUND ELEVATION (f� fiQl%II( la�At�ell/le. i*** SUMMARY OF SEWER HYDRAULICS ' NOTE: THE GIVEN FLOW DEPTH -TO -SEWER SIZE RATIO= .85 -------------------------------------------- SEWER MAMHOLE_NUMBER SEWER ----------------------------------- REQUIRED SUGGESTED EXISTING ' ID NUMBER UPSTREAM DNSTREAM SHAPE DIA(HIGH) DIA(HIGH) DIA(HIGH) WIDTH ID NO. ID NO. (IN) (FT) (IN) (FT) (IN) (FT) (FT) ------------------------------------------------------------------'-----....--- 12.00 2.00 1.00 ROUND 9.73 15.00 15.00 0.00 1 23.00 3.00 2.00 ROUND 11.08 15.00 15.00 0.00 34.00 4.00 3.00 ROUND 8.15 15.00 15.00 0.00 450.00 50.00 4.00 ROUND 12.55 15.00 15.00 0.00 ' 35.00 5.00 .3.00 ROUND 8.91 15.00 15.00 0.00 56.00 6.00 5.00 ROUND 8.91 15.00 15.00 0.00 67.00 7,00 6,00 ROUND 8,91 15.00 15,00 0.00 78.00 8.00 7.00 ROUND 8.91 15.00 15.00 0.00 89.00 9.00 8.00 ROUND 8.91 15.00 15.00 0.00 951.00 51.00 9.00 ROUND 13.71 15.00 15.00 0.00 DIMENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES 'DIMENSION UNITS FOR BOX SEWER ARE IN FEET REQUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. SUGGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. FOR A.NEW SEWER, FLOW WAS ANALYZED BY THE SUGGESTED SEWER SIZE; OTHERWISE, EXISITNG SIZE WAS USED SEWER DESIGN FLOW NORMAL NORAML CRITIC CRITIC FULL FROUDE COMMENT ID FLOW 0 FULL 0 DEPTH VLCITY DEPTH VLCITY VLCITY NO. ' NUMBER CFS CFS FEET FPS FEET FPS FPS ------------------------------------------------------------------------------- 12.0 3.4 10.8 0.48 7.81 0.74 4.48 2.77 2.30 V-OK 23.0 3.4 7.7 0.58 6.05 0.74 4.48 2.77 1.59 V-OK 34.0 1.5 7.7 0.38 4.84 0.50 7.36 1.22 1.64 V-OK 450.0 1.5 2.4 0.71 2.08 0.50 3.25 1.22 0.48 V-OK 35.0 1.9 7.7 0.42 5.17 0.55 2.86 1.55 1.64 V-OK 56.0 1.9 7.7 0.42 5.17 0.55 3.62 1.55 1.64 V-OK 67.0 1.9 7.7 0.42 5.17 0.55 3.62 1.55 1.64 V-OK 78.0 1.9 7.7 0.42 5.17 0.55 3.62 1.55 1.64 V-OK 1.9 7.7 0.42 5.17 0.55 3.62 1.55 1.64 V-OK '89.0 951.0 1.9 2.4 0.83 2.18 0.55 3.62 1.55 0.45 V-OK ' FROUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS --------------------------'._...-------------------------------------- 'SEWER SLOPE INVERT ELEVATION BURIED DEPTH COMMENTS ID NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM % (FT) (FT) (FT) (FT) ----- 12.00 ---- 2.00 -------'..------- 5045.11 5043.09 "..----'..' 8.64 ---- 1.16 OK 23.00 1.00 5046.47 5045.51 9.28 8.24 OK ' 34.00 450.00 1.00 0.10 5047,97 5047.97 1046,67 5047.97 1.28 1.28 9.08 1.28 OK OK 35.00 1.00 5047.56 5046.67 8.19 9.08 OK 56.00 1.00 5049.91 5047.76 8.34 7.99 OK 67.00 1.00 5051.09 5050.11 7.16 8.14 OK 78.00 1.00 5052.05 5051.29 6.20 6.96 OK 89.00 1.00 5053.03 5052.25 0.72 6.00 NO 951.00 0.10 5053.03 5053.03 0.72 0.72 NO OK MEANS BURIED DEPTH IS GREATER THAN REQUIRED SOIL COVER OF 1 FEET *** SUMMARY OF HYDRAULIC. GRADIENT LINE ALONG SEWERS - '--------------------------------------------------..'--------------------- SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW ID NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM DNSTREAM CONDITION FEET FEET FEET FEET FEET FEET " """ - -""-"-' """ - ' "" ----------"" 72.00... 101.00' 0..00 5046.36 5044.34 5045.85' 5043.83 JUMP 23.00 96.00 0.00 5047.72 5046.76 5047.21 5045.85 JUMP 34.00 130.00 0.00 5049.22 5047.92 5048.47 5047.21 JUMP ' 450.00 1.00 0.00 5049.22 5049.22 5048.58 5048.47 SUBCR 35.00 89.00 0.00 5048.81 5047.92 5048.11 .5047.21 JUMP ' 56.00 67.00 215.00 98.00 0.00 0.00 5011.16 5052.34 5049.01 5051.36 5050.46 5051.64 1048,11 5050.46 JUMP JUMP 78.00 76.00 0.00 5053.30 5052.54 5052.60 5051.64 JUMP 89.00 78.00 0.00 5054.28 5053.50 5053.58 5052.60 JUMP 951.00 1.00 0.00 5054.28 5054.28 5053.69 . 5053.58 SUBCR PRSS'ED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUBCR=SUBCRITICAL FLOW 1 end pi pc mho nfO kgwaandfe; 5L2; en-F 9ra�nd Cacrd�s Cxls owe.-pl pe. '*** SUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS '--------------------------------------------------------- 7--------------------- UPST MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE SEWER MANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY 'ID NO ID NO. ELEV FT FT K COEF LOSS FT K COEF LOSS FT ID FT ------------------------------------------------------------------------------- 12.0 2.00 5045.97 2.02 1.00 0.12 0.00 0.00 1.00 5043.83 23.0 3.00 5047.33 1.23 0.46 0.05 0.35 0.08 2.00 5045.97 34.0 4.00 5048.50 1.06 0.46 0.01 0.90 0.10 3.00 5047.33 450.0 50.00 5048.60 0.10 0.25 0.01 0.00 0.00 4.00 5048.50 '35.0 5.00 5048.15 0.80 0.46 0.02 0.00 0.00 3.00 5047.33 56.0 6.00 5050.50 2.35 0.08 0.00 0.00 0.00 5.00 5048.15 67.0 7.00 5051.68 1..3 0.08 0.00 0.00 0.00 6.00 5050.50 78.0 8.00 5052.64 0.95 0.25 0.01 0.00 0.00 7.00 5051.68 '89.0 9.00 5053.62 0.97 0.25 0.01 0.00 0.00 8.00 5052.64 951.0 51.00 5053 0.10 0.25 0.01 0.00 0.00 9.00 5053.62 'BEND LOSS =BEND K* FLOWING FULL VHEAD IN SEWER. LATERAL LOSS= OUTFLOW FULL VHEAD-JCT LOSS K*INFLOW FULL VHEAD FRICTION LOSS=O MEANS IT IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. 'FRICTION LOSS INCLUDES SEWER INVERT DROP AT MANHOLE NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FT WOULD BE INTRODUCED UNLESS LATERAL K=O. FRICTION LOSS WAS ESTIMATED BY BACKWATER CURVE COMPUTATIONS. ' *** SUMMARY OF EARTH EXCAVATION VOLUME FOR COST ESTIMATE. ------- THE TRENCH SIDE ------- - SLOPE = -'------ '-'----." 1 MANHOLE GROUND INVERT MANHOLE ID NUMBER ELEVATION ELEVATION HEIGHT FT --------fT------_-FT 1.00 5045.50 5043.09 2.41 2.00 5055.00 5045.11 9.89 ' 3.00 5057.00 5046.47 10.53 4.00 5050.50 5047.97 2.53 50.00 5050,50 5047.97 2.53 ' 5.00 5057.00 5047.56 9.44 6.00 5059.50 5049.91 9.59 7.00 5059.50 5051.09 8.41 8.00 5059.50 5052.05 7.45 ' 9.00 5055.00 5053.03 1.97 51.00 5055.00 5053.03 1.97 ------------------------------------------------------------------------------- SEWER UPST TRENCH WIDTH DNST TRENCH WIDTH TRENCH WALL EARTH ID NUMBER ON GROUND AT INVERT ON GROUND AT INVERT LENGTH THICKNESS VOLUME FT FT FT FT FT INCHES CUBIC YD -----'-----------------------------------------------._..--------------_------. 12.00 20.16 3.63 5.20 3.63 101.00 2.25 225.9 23.00 21.43 3.63 19.35 3.63 96.00 2.25 392.8 34.00 5.43 3.63 21.03 3.63 130.00 2.25 314.1 450.00 5.43 3.63 5*44 3.63 1.00 2.25 0.5 ' F ,e,-qY goadel me A� Pond o,.41e� 1.5 bey loo4e IQ7yi pona;M ,acl?e15orfoze elemhon In .P00145 f G/Ida, 35.00 19.25 3.63 21.04 3.63 89.00 2.25 355.6 56.00 19.55 3.63 18.85 3.63 215.00 2.25 784.1 67.00 17.20 3.63 19.16 3.63 98.00 2.25 323.2 ' 78.00 15.28 3.63 16.79 3.63 76.00 2.25 198.9 89.00 4.32 3.63 14.88 3.63 78.00 2.25 104.6 951.00 4.32 3.63 4.32 3.63 1.00 2.25 0.4 TOTAL EARTH VOLUME FOR SEWER TRENCHES = 2700.121 CUBIC YARDS 'SEWER FLOW LINE IS DETERMINED BY THE USER EARTH VOLUME WAS ESTIMATED TO HAVE BOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • B ' B=ONE FEET WHEN DIAMETER OR WIDTH <=48 INCHES B=TWO FEET WHEW DIAMETER OR WIDTH >48 INCHES IF BOTTOM WIDTH <MINIMUM WIDTH, 2 FT, THE MINIMUM WIDTH WAS USED. 'BACKFILL DEPTH UNDER SEWER WAS ASSUMED TO BE ONE FOOT SEWER WALL THICKNESS=EOIVLNT DIA14ATER IN INCH/12 +1 IN INCHES 1 1 1 1 1 : 4F - - 1.111-4.,- I I'll - -I%- .., 11 J-1- �o�d 1,+v.7nlef�l the PRE- y DST Preserve - Stormseuer Analysis - Pond 1 to Inlet 1 - COTST16 6-8-1993 L&A Inc. CLD File: PRE-4.DAT 7ti c ��e v e ' 1 12 , 2 0, 2 2, 1,. 8 5, 5 0 0, 5 0 0,. 2, R 5 e% 5bfmya,- b7aIPr-) 1 100 1.4 , 28.5 , 10 .786 Vl�e� Tnp�t 3 15, 5053.5 0 1 ,1516, 0 0 0 � 2 13.7, 0 , 3.0 , .65 , 0 0 ,.0 , 0 , 0 0,, le�i'jpe+oTonp 16, 5057.4 ,1516, 1 ,1617, 0 0 , 0 � Sri(e4 rL 1 i� 13.7, 0, 3.0, .65, 0, 0 0 00 17, 5057.4 ,1617, 0 , 0 , 0 0 , 0 13.7,0, 3.0,.65,0,0000 2 ' 1516, 178 , 0.5, 5056.40 , .011 , 1 , 0 ,1 , 24 , 0-- Pipe from ?bnd 1io .tnld �^ W 7, 1 , 0.1, 5056.40 , .011 , 0.25 , 0 , 1 , 24 0 — 4- jrl (e4 1.05 j Mavj 6le and 5form5ek.Ke(eme, 5 ofe ()5ed fo 5(mok+e Infer 10t9. Pipe lend* and 51ope have Ylo-p1y5(cc,l fz(ewnce, 1 1 1 0 u 1 1 1 1 1 1 1 ' IPoncl 1 �o to lei -,+- 1. ' REPORT OF STORM SEWER SYSTEM DESIGN USING UDSEWER-MODEL 2-10-1993 DEVELOPED BY ' JAMES C.Y. GUO ,PHD, PE DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER IN COOPERATION WITH URBAN DRAINAGE AND FLOOD CONTROL DISTRICT DENVER, COLORADO -----------'------------------------'-----------------------'----------------- *•* EXECUTED BY LIDSTONE AND ANDERSON................................................... ON DATA 08-31-1993 AT TIME 10:25:17 ••• PROJECT TITLE ' The Preserve - Stormseuer Analysis - Pond 1 to Inlet 1 ' *** RETURN PERIOD OF FLOOD IS 100 YEARS ' RAINFALL INTENSITY FORMULA IS GIVEN OF SUBBASiN RUNOFF.PREDICTIONS -------------- - - TI F CONCEN ION MANHOLE BASIN OVERLAND G BASIN ID NUMBER AREA * C To (M Tf (MIN) (MIN) 15.00 0.00 0.00 0.00 16.00 1.95 0.00 0.00 0.00 RAIN I PEAK FLOW INCH/HR CFS ------------------ 75 9.26 4. 9.26 ' 00 1.95 0.00 0.00 5.00 THE SHORTEST DESIGN RAINFALL DURATION 1S FIVE MINUTES ' DENVER REGIONAL DRAINAGE CRITERIA WAS NOT USED TO CHECK THE COMPUTATION OF TIME OF CONCENTRATION ' *** SUMMARY OF HYDRAULICS AT MANHOLES 7.03 De5l9n Flow-5lmpc)f as 91ven be low Plc -y , OOT- The AreServe 5-�rm5ek)er flri,*5 r�, 05dwev OL�f-po+ ------------------------------------------------------------------------------- ' MANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GROUND WATER COMMENTS ID NUMBER AREA • C DURATION INTENSITY PEAK FLOW ELEVATION ELEVATION INCH/HR--- CFS FEET FEET - --------------MINUTES --------------------------------------------- 5fa/fin Ho%ei Soi�uce 91ven by IDv-yi 15.00 0.00 0.00 0.00 13.70 5053.50 5056.5 NO {�nd�d W.5 • eleV, ,n POA6d - 16.00 0.00 5.00 0.00 13.70 5057.40 0 6. OK Aydt4u/or.6"Oditoo c of 1;1le4I 17.00 1.95 5.00 7.03 13.70 5057.40 5057.04 OK OK MEANS WATER ELEVATION IS LOWER THAN GROUND ELEVATION **� SUMMARY OF SEWER HYDRAULICS ' NOTE: THE GIVEN FLOW DEPTH -TO -SEWER SIZE RATIO= .85 ---------------"'.............-----.............-----._........__._......----- SEWER MAMHOLE NUMBER SEWER REQUIRED SUGGESTED EXISTING ID NUMBER UPSTREAM DNSTREAM SHAPE DIA(HIGH) DIA(HIGH) DIA(HIGH) WIDTH ID NO. ID NO. (IN) (FT) (IN) (FT) (IN) (FT) (FT) ------- 1516.00 ----- 16.00 -------------- 15.00 ROUND ----- 21.27 ...----- 24.00 ----- ........- 24.00 0.00 1617.00 17.60 16.00 ROUND 28.77 30.00 24.00 0.00 ,DIMENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES DIMENSION UNITS FOR BOX SEWER ARE IN FEET 'REQUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. SUGGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. FOR A NEW SEWER, FLOW WAS ANALYZED BY THE SUGGESTED SEWER SIZE; OTHERWISE, EXISITNG SIZE WAS USED ------------------------------------------------------------------------------- SEWER DESIGN FLOW NORMAL NORAML CRITIC CRITIC FULL FROUDE COMMENT ID FLOW Q FULL 0 DEPTH VLCITY DEPTH VLCITY VLCITY NO. NUMBER CFS CFS FEET FPS FEET FPS FPS 1516.0 13.7 19.0 1.26 6.57 1.33 6.17 .4.36 1.12 V-OK 1617.0 13.7 8.5 2.00 4.36 1.33 6.17 4.36 0.00 V-OK FROUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS - - - -"-,------------------------------------------ SEWER SLOPE INVERT ELEVATION BURIED DEPTH COMMENTS ID NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM X (FT) (FT) (FT) (FT) ------------------ 1516.00 0.50 5054.40 5053.51 1.00 -2.01 NO 1617,00 0.10 1054,40 5054,40 1.00 1.00 OK ' OK MEANS BURIED DEPTH IS GREATER THAN REQUIRED SOIL COVER OF 1 FEET ' *** SUMMARY.OF HYDRAULIC GRADIENT LINE ALONG SEWERS DcwnSfrCum erd o.F�I pe�4yl,,a(kls -ioFond� 9rouNd SUrfGCP. UK ------------------------------------------------------------------------------- ' SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW ID NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM DNSTREAM CONDITION FEET ------------------------------------•--------------------- FEET FEET FEET FEET FEET --------- 1516.00 178.00 178.00 5056.40 5055.51 5056.96 5056.50 PRSS'ED 1617.00 1.00 1.00 5056.40 5056.40 5057.04 5056.96 PRSS'ED 'PRSS'ED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUBCR=SUBCRITICAL FLOW *** SUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS ------------------------------------------------------------------------------- UPST MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE SEWER MANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY ID NO ID NO. ELEV FT FT K COEF LOSS FT K COEF LOSS FT ID FT 1516.0 16.00 5057.26 0.46 1.00 0.30 0.00 0.00 15.00 5056.50 1617.0 17.00 5057.34 0.00 0.25 0.07 0.00 0.00 16.00 5057.26 I:nefDy 6radeLsne a+ _rm ef-4�'115 belo,� Irlle• eleLb4lon (5057,40 BEND LOSS =BEND K* FLOWING FULL VHEAD IN SEWER. LATERAL LOSS= OUTFLOW FULL VHEAD-JCT LOSS K*INFLOW FULL VHEAD FRICTION LOSS=O MEANS IT IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. . 'FRICTION LOSS INCLUDES SEWER INVERT DROP AT MANHOLE NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FT WOULD BE INTRODUCED UNLESS LATERAL K=O. FRICTION LOSS WAS ESTIMATED BY BACKWATER CURVE COMPUTATIONS. ' *** SUMMARY OF EARTH EXCAVATION VOLUME FOR COST ESTIMATE. THE TRENCH SIDE SLOPE _ --------------- 1 -- ----- - MANHOLE GROUND INVERT MANHOLE ID NUMBER ELEVATION ELEVATION HEIGHT ' FT FT FT 15.00 ---------------- 1013,50 1013.51 -0.01 ' 16.00 5057.40 5054.40 3.00 17.00 5057.40 5054.40 3.00 --------------------------------------------------------••--------------------- SEWER UPST TRENCH WIDTH DNST TRENCH WIDTH TRENCH WALL EARTH ID NUMBER ON GROUND AT INVERT ON GROUND AT INVERT LENGTH THICKNESS VOLUME ' FT FT FT FT FT INCHES CUBIC YO -------------------------------- 1516.00 5.50 4.50 •------•--------------------------------------- 4.50 4.50 178.00 3.00 111.9 ' 1617.00 5.50 4.50 5.50 4.50 1.00 3.00 0.7 TOTAL EARTH VOLUME FOR SEWER TRENCHES = 112.6052 CUBIC YARDS SEWER FLOW LINE IS DETERMINED BY THE USER EARTH VOLUME WAS ESTIMATED TO HAVE iBOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • B B=ONE FEET WHEN DIAMETER OR WIDTH <=48 INCHES B=TWO FEET WHEN DIAMETER OR WIDTH >48 INCHES IF BOTTOM WIDTH <MINIMUM WIDTH, 2 FT, THE MINIMUM WIDTH WAS USED. BACKFILL DEPTH UNDER SEWER WAS ASSUMED TO BE ONE FOOT SEWER WALL THICKNESS=EDIVLNT DIAMATER IN INCH/II +1 IN INCHES I I [I i I 11 I I i I I I I I I I J. `' ; 1 .t'r ! %~ I, t t 1 } 1y I •! .i i 4 t r: ) , M1 1 ti tir 1 0 1 r k z S r,J 5 x - f r" r. r r t v u a rr t ?,, s r ,J .. (, } i f �,^'• W. 4 V _. r YI'`I of > -J. t \ 4' A pl. ; J a J e A r,'t 1 r " -' N c t i 1.4 t .{ 1 i I r 1 tt y J t I' �d 1 I S . l . S �' 4 - t, Ma n l t t J i R e _.I, .j 4 v .} k f n i D t , . h 1 , 2 t., I t t 1 r J h Y. Lit ..'1 \iff l'. r. -i 1 _ 1 r j .It" , I f 1 r J n; Y J f r xT 1 Y r , , t ' -, J - _ i - I- a . :,.i . . r <, - f ` .. ' , I1 .a . r' t 1 S f1, t 1 i 1 ! 1'. ` I Y ti tt i i, - J 1 J v 1 1 ! 1 Y _ r! 1 i' 1 f , p ".,�1, .I ', , ,., - . ,- . .. . n 1 4 1 1 J Y I n JZ • M1l ♦ r r!1 1 1 ,! D l s If \.' 1' 1. Ir ( r f {,. ,.,I '2 1 i t '{ ! r Jt J .f Y 9 rl -f= T 1 q1 t t 1 '� l..( 11 n f k c r J �, r 2 _.µ Y h f 4 -F k e IF , v, y. p.' n t.� \I T i _ J t a k 1 i f f „ 1 I ! 1, -. 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I. 1 - t tJ i M 1 i , lJ f. h: 1 1 kr ,. �", t i k J w ! M1 •r, J 1 1 1 1 r v ..1. i ! L t f t �, 1 t I ! 1 1 y f` e b 3 r,l n �. 4 1 J, X {l f 1 t 7 $ as 'h i i •j t x }.• tI T s J.'. of �, 1 i.: , a f y J 1' .� , b. i {'. i 1 Nr '' w + -t 3 " h r'1. 7J �1 r I "' S 5v- a t y `. 4 '., J °- i f t ., , 1 I i,r 9 r J w w v 4 4 n a. 1 )It �� l�AN n' t , e I f. n 1 . l 1 f r j. ! 1 y I, i t I� wf ° f <l I .r r : i J, t v. r v j r 'J. J"3' rr \ 1 e r r 1- t , i ,. t ,4 y `' I r. `' t: "1 l r , I' t L, I r. �' i T i :- V n t y .q ,- '+4 CI J J , J - 1 r x ° l t J, f r i.'I v J 3 - l .'1 1 S r 1 , Vr f _2 ,'. , 't •t 1 i J .. J { v .; i b y ,• - i-,. r 1' ! • `( J t f 1 't' + 1 `J t 1 I ,.. ~ t l r ! ,[ r J :J y' !>r J t L t nu t- ! 1 J M1 + r s v \ 1 II t - M1 i 1 ,1 3.. r..r D �lti y \ M1! t i t A y •� J J J 1 1 1 �. t } f 1 t Js f L A "1 L+: I 4 1 < f t l I� Fl I j! i ..r Y J .'q %' t . t ry .. Y .' t ' -rA .t.F '+ y .fl t r ' -'� l < J1 r ... J iM1 t ; -, 1'' ... J . 4 :, t f 4 tt Y 1. 1 ., f ,t t iF ;, Y t< - J y s+'"' y k+ J r"I ' 4 v i h ;t ,, f t t ,, 1 •S''r e -�, r t-, c r' n Y t 1 t;, +. 1 J k{! a c `t' Y i R t . 1 J 1)- ', I t i t} r , v ¢. f t I f v ,� J, a y, t ' J 1 4 t Jil f M1' M1.. 1s'''. •,'.. > J 4 fS.i J P11 t ! M1 a.i Il. t•! r�! rf { ?on8.140 Tnfe+:�a ,The Preserve - Stormseuer Analysis - Pond 1 to Inlet 2 COTS7I6 6-8-1993 L&A Inc. CLD File: PRE-2.DAT 1 , 12 , 20 2 , 2 , 1 , .85 500 , 500 , .2 , N ' 1 , 100 1.4 , 28.5 10 .786 3 10, 5053.0 0 1 ,1011, 0 0 0 � OLAW Pipe +o PbrJ 1 3.9 , 0, 0.4 .65 , 0, 0 0 0 0 11, 5057.5 ,1011, 1 ,1152, 0 0 0 0 Tnle+ irs 1 3.9 , 0, 0.4 ,.65 0 0 0 0 52, 5057.5 ,1152, 0 0 0 0.% , 0 *--rl fe4 Ion 3.9, 0, 0.4, .65, 0, 0 0 0 0� I- 2 The Phnei✓e 5+orm Se�er- f�nal y�r� va5ea—Tn p-f ' 1011,20.4 ,18.4, 5056.50 , .011 , 1 , 0 , 1 , 15 , 0 — Pipe4/om F7on8 1 io TnlA 0,2 1152, 1 , 0.1, 5056.50 , .011 ,0.25 , 0 , 1 , 15 , 0 — T.Lrtlef I.0S5 Manhole and SFormSeK)er- elemenf5 Qre05ed 40 SlrnJ(afe In let103� pe (em94i and 51ope lu,s via pAyijeal re(e✓ance . 1 1 L 1 1 1 1 1 1 1 1 Ll 1 Fond 1 �o .I"n lef 4�a REPORT OF STORM SEWER SYSTEM DESIGN USING UDSEWER-MODEL 2-10-1993 DEVELOPED BY JAMES C.Y. GUO ,PHD, PE DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER IN COOPERATION WITH URBAN DRAINAGE AND FLOOD CONTROL DISTRICT ' DENVER, COLORADO ------------------------------------------------------------------------------ **' EXECUTED BY LIDSTONE AND ANDERSON................................................... ON DATA 09-01-1993 AT TIME 14:13:27 i*** PROJECT TITLE ' The Preserve - Stormseuer Analysis - Pond 1 to Inlet 2 *** RETURN PERIOD OF FLOOD IS 100 YEARS ' RAINFALL INTENSITY FORMULA IS GIVEN ' *** ARY OF SUBBASIN RUNOFF PREDICTIONS ----------------------- ----------------------- TIME CONCENTRA ------------------- MANHOLE BASIN OVERLAND GUT BASIN RAIN I PEAK FLOW ID NUMBER AREA ' C To (MIN) (MIN) MIN) INCH/HR CFS - - - ... - --- ------------------- 10.00 0. 0.00 0.00 0.00 75 1.23 11.00 0.26 0.00 0.00 0.00 4.75 1.23 5 0.26 0.00 0.00 5.00 15.00 THE SHORTEST DESIGN RAINFALL DURATION IS FIVE MINUTES ' DENVER REGIONAL DRAINAGE CRITERIA WAS NOT USED TO CHECK THE COMPUTATION OF TIME OF CONCENTRATION ' *** SUMMARY OF HYDRAULICS AT MANHOLES PRF -a- 00 T The Pre5eive 51vrm SeL-ler 04n4 Iy515 L) Sewer pof. De5iq#1 Flow'5 I/I pof 615 91%len below ------------------------------------------------------------------------------- ' MANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GROUND WATER COMMENTS ID NUMBER AREA * C DURATION INTENSITY PEAK FLOW ELEVATION ELEVATION 10.00 0.00 MINUTES INCH/HR CFS FEET FEET --------------------------------------------- - 0.00 0.00 3.90 5053.00 ._ 5056.50 NO 5faifin Wader 5u(ftice 91JCn by loo-ye Po"Jm W5E1e9 11.00 0.00 5.01 0.00 3.90 5057.50 OK IydFq��I�(]74�81+�1C4f�..+�e�jta 52.00 0.26 5.00 15.00 3.90 5057.50 5056.59 OK 1� OK MEANS WATER ELEVATION IS LOWER THAN GROUND ELEVATION ' *** SUMMARY OF SEWER HYDRAULICS ' NOTE: THE GIVEN FLOW DEPTH -TO -SEVER SIZE RATIO= .85 ------------------------------------------------------------------------------- 'SEWER MAMHOLE NUMBER SEWER REQUIRED SUGGESTED EXISTING ID NUMBER UPSTREAM DNSTREAM SHAPE DIA(H1GH) DIA(HIGH) DIA(HIGH) WIDTH ID NO. ID NO. (IN) (FT) (IN) (FT) (IN) (FT) (FT) ' 1011.00 11.00 10.00 ROUND 6.75 12.00 15.00 0.00 1152.00 52.00 11.00 ROUND 17.96 18.00 15.00 0.00 DIMENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES DIMENSION UNITS FOR BOX SEWER ARE IN FEET 'REQUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. SUGGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. FOR A NEW SEWER, FLOW WAS ANALYZED BY THE SUGGESTED SEVER SIZE; OTHERWISE, EXISITNG SIZE WAS USED ' SEWER DESIGN FLOW NORMAL NORAML CRITIC CRITIC FULL FROUDE COMMENT ID FLOW 0 FULL 0 DEPTH VLCITY DEPTH VLCITY VLCITY NO. NUMBER CFS CFS FEET FPS FEET FPS FPS ------- 1011.0 3.9 32.8 0.29 17.99 0.80 4.73 3.18 7.00 V-OK 1152.0 3.9 2.4 1.25 3.18 0.80 4.73 3.18 0.00 V-OK ' FROUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS SEWER SLOPE INVERT ELEVATION BURIED DEPTH COMMENTS ID NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM '--------------X-------`FT)------(FT)------(FT)------(FT)--------- OK 1011.00 18.40 5055.25 1152,00 0.10 5155.25 MEANS BURIED DEPTH IS GREATER 5051.50 1.00 5055.25 1.00 THAN REQUIRED SOIL 0.25 NO 1.00 OK COVER OF. 1 FEET �,,)n5h (Gm C✓w�o� P'Pe - 7+1��'/ 40 potid 19�0�� 5u/��«• �!/`' L *** SUMMARY OF HYDRAULIC GRADIENT LINE ALONG SEWERS ' SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW ID NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM DNSTREAM CONDITION FEET FEET FEET FEET FEET FEET ----- --------------------------------------•--------------------- 1011.00 20.40 20.40 5056.50 5052.75 5056.55 5056.50 PRSSIED 1152.00 1.00 1.00 5056.50 5056.50 5056.59 5056.55 PRSSIED tRSS'ED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUBCR=SUBCRITICAL FLOW �•** SUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS 'UPST ------------------------------------------------'.-------...-.-.....'--....---- MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE SEWER MANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY ID NO ID NO. ELEV FT FT K COEF LOSS FT K COEF LOSS FT 1D FT - '---....----- ----' ---.'......-.--'.......-..-- title tit 1011.0 11.00 5056.71 0.05 1.00 0.16 0.00 0.00 10.00 5056.50 8}y af�e 1152.0 52.00 5056.75 0.00 0.25 0.04 0.00 0.00 11.00 5056.71 'elevahoel BEND LOSS =BEND K* FLOWING FULL VHEAD 1N SEWER. LATERAL LOSS= OUTFLOW FULL VHEAD-JCT LOSS K*INFLOW FULL VHEAD FRICTION LOSS=O MEANS IT IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. 'FRICTION LOSS INCLUDES SEWER INVERT DROP AT MANHOLE NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FT WOULD BE INTRODUCED UNLESS LATERAL K=O. ' FRICTION LOSS WAS ESTIMATED BY BACKWATER CURVE COMPUTATIONS. 1 *** SUMMARY OF EARTH EXCAVATION VOLUME FOR COST ESTIMATE. ' THETRENCHSIDE SLOPE _ --------------------------------'I MANHOLE GROUND INVERT MANHOLE ID NUMBER ELEVATION ELEVATION HEIGHT ' ------------------------------------------------------------------------------- FT FT FT 10.00 1053.00 5051.50 1.50 ' 11.00 5057.50 5055.25 2.25 52.00 5057.50 5055.25 2.25 1 ------------------------------------------------------------------------------- SEWER UPST TRENCH WIDTH DNST TRENCH WIDTH TRENCH WALL EARTH ID NUMBER ON GROUND AT INVERT ON GROUND AT INVERT LENGTH THICKNESS VOLUME -----------------.---------------F---------F-------- FT FT T T FT INCHES CUBIC YD 1011.00 4.88 3.63 3.38 3.63 20.40 2.25 8.0 1152.00 4.88 3.63 4.88 3.63 1.00 2.25 0.5 'TOTAL EARTH VOLUME FOR SEWER TRENCHES = 8.483038 CUBIC YARDS SEWER FLOW LINE IS DETERMINED BY THE USER , EARTH VOLUME WAS ESTIMATED TO HAVE ' BOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • B B=ONE FEET WHEN DIAMETER OR WIDTH <=48 INCHES 'B=TWO FEET WHEN DIAMETER OR WIDTH >48 INCHES IF BOTTOM WIDTH <MINIMUM WIDTH, 2 FT, THE MINIMUM WIDTH WAS USED. BACKFILL DEPTH UNDER SEWER WAS ASSUMED TO BE ONE FOOT SEWER WALL THICKNESS=EGIVLNT DIAMATER IN INCH/12 +1 IN INCHES I I L ,'I I I 1 . t t `i. ... ,R a ] •, r .': . .. t <. I e J -I! r is vat f t. .� < ) ! b 4 i s { 1. +� . t' 4' r; ' l .SHY i f 1_ I fi t. f 1-A' KI t n' A �.a a i.. I I J \� I �, y t rt I J \.. t y r ! .f A I - r a♦ 1 a .t r r t. r�l t r 1.\ F♦ d i �ry F. Y ,, f i , 4 f 1~ 4Y Y 't "^tI. I-f I rt A o1. (. }}, RrY,{� to . r I 11 1 r y I r} - 1 r ♦ -t.. - r s 1 f. - 1.a y - ) J i. . I , I � � . -, �. , ll- -..r tto j ' .` c tl `, ,1 s •r n `: r l• . . c J u i1• - t t.y , n t ••M1 •y - t t i R .. � t .. �. , " I I � . . I I - I . . - . , ,— , , . '� "' t .. % r c 2 i,: r I. a __ t, T t r- i ,; ♦1. I t 1 I y. t \ , t f„ „ 'I.'r t I t f } I .. �.\ 1 ', 4 ''P a t' t 4\ J \ I I V ! f 1•l y. L 1 A\ ` 1. t � � � � i l . , � . I f t I S s 1 N , f r M , r .N W 1 ! H J , I I r( • JJ .. '1a. .I x•. t r,. ✓ • %- .r l i may. t r y t ii J It f 6 i c1 t ii t 1 x '' n ! ,y S' a _ R •. 'o. 7 . 1. i f r , ', I ! !f � ) Y ' '. ^I s , ,wT tl ,i t I f a ? r J'Y ,t.� > '' fM1 J ` y` Jt3 ja. �y a} C vY � f t`. i a _ . a s )r \ M t a i i I `�. [ {C." i 3.' tli•L 0 -1 `v 15 i• 4 . ,i I 4 1, :` .5 1 f 1. t. �.. {' J `4 a - I` -'( ..l" ;.' I t r {� r y' it ,. I ' A Pond 1 to Inlet #3° r µ . I ` t •:11 f r r '[ t S % M1 .b t f111-:1 t. .'I S ♦ -�, f Ju♦ 1 .`, ' � r [1. ,y J F l w"%r• <� Pr" rt ,: } 1 r I . ( - , t t ` f r,: r {l { r - ly' A I l Y } _t1 r * •"IR 1.\. J a. f I -\ rtt \. r fit,;, '' - µ' t ,1 0 G- 4 1 l I • J I r nC t. t I' D 1 5} T h r r .. ,.I V , ,...... �y '�'. dt ,,)I 'V'I �' 1 `i,f .1 ,.. I V M! ♦1 , 1< N f i . ; P.`1d " r v f.l Y �i 1.I (y� a As 11 l. t , y I 1 '�-A4 ' 1 t , 1 t J I 1 ar •. ( y' r y . l �. I1. . ( o f ` t tr I" 1 �yt a X r U 14 ti 1,I I a \ v 5'S ,' r . t t ,'i r !� ty ] y t y t 4 ( f.. y I \ )a 1 ( �� ✓t ' l .. ! .t t� 4 t t t ` v-J P r, i, t - }7_ -, r -i f t. - - .f J -Y. .• F I' t a ? t..i., M1i �t �y 2 S. r'• '� r Y 4 ri f. i ,� a _ * t _ s r ,, .- 1n I f 'i I k - f v- ti t i - i r a r I t I ! f ' J r .. 1, ¢ t1 l ( , v A: �y C ,,r L: i A �P rl. ♦ tI } �t J yeR [ S I .'f-• r V , i t S ' ,•� e t �• iY v I ' � 9< }ti a r ,r. I t [a 1• �. '1 }:- AI 1 tit • I S 4 t I t. t pond 1 +v .rnlc+�.3 The Preserve - Stormseuer Analysis - Pond 1 to Inlet 3 COTSTI6 6-8-1993 L&A Inc. LLD File: PRE-3.DAT 1 12 , 20 2 , 2 , 1 , .85 , 500 , 500 , .2 ,N ' 1 100 1.4 , 28.5 10 .786 3 '12, 5055.5 0 1 1213, 0 0 0} 6.4, 0, 3.0 .65, 0, 0 0 0 0 13, 5058.5 ,1213, 1 ,1314, 0 , 0 , 0 =nle%3 '6.4 , 0, 3.0 ,.65 0 0 0 0 0 14, 5058.5 ,1314, 0 0 0 0 0 1�T112f l 075 6.4, 0, 3.0, .65 0 0 0 0 2 ' 1213, 28 ,10.0, 5057.50 .011 1 0 , 1 , 15 , 0 — Pipe�rom Pon 4 140,Snlef---43 1314, 1 0.1, 5057.50 .011 0.25, 0 , 1 , 15 , 0 — -Y "rifeT L05:5 Munhde cA '5orm5ewer elemen+5 are used fotirho(4e mlei t s-.) f le2 Zeno cA5lope have no phyiical relejadce. 1 1 1 1 PeC— - 3. Dot r The Pre5eive 5*tm 5ewae,, final p,5 uDSewei rlpvf 11 -pond 1 fo rrl tef 3 ---------------- --------------------------------------------------------- ' REPORT OF STORM SEWER SYSTEM DESIGN USING UDSEWER-MODEL 2-10-1993 DEVELOPED BY JAMES C.Y. GUO ,PHD, PE ' DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER IN COOPERATION WITH URBAN DRAINAGE AND FLOOD CONTROL DISTRICT DENVER, COLORADO t EXECUTED BY LIDSTONE AND ANDERSON................................................... ON DATA 08-31-1993 ' AT TIME 09:48:38 '•' PROJECT TITLE : The Preserve - Stormseuer Analysis - Pond 1 to Inlet 3 *** RETURN PERIOD OF FLOOD IS 100 YEARS RAINFALL INTENSITY FORMULA IS GIVEN OF SUBBASIN RUNOFF PREDICTIONS 'TIM -- -------------- --------------------- CONCENT ON - - - - - MANHOLE BASIN OVERLAND GU BASIN RAIN I PEAK FLOW ID NUMBER AREA • C To (MI Tf (MIN) INCH/HR CFS ................. 12.00 --------------- 0.00 0.00 -----MIN) ------------------- 0.00 9.26 13.00 1.95 0.00 0,00 0.00 4.75 9.26 ' . 0 1.95 0.00 0.00 14.00 3.28 6. THE SHORTEST DESIGN RAINFALL DURATION IS FIVE MINUTES DENVER REGIONAL DRAINAGE CRITERIA WAS NOT USED TO CHECK THE COMPUTATION OF TIME OF CONCENTRATION ' •+' SUMMARY OF HYDRAULICS AT MANHOLES De519A {ioJS ItipO" a5 ven oelaa -P er= - 3 , DL-r Th e Pre5,eive 5fv/m-5ea1- 4pic,101; vD5eK)er D-ppvi- ' MANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GROUND WATER COMMENTS ID NUMBER AREA * C DURATION INTENSITY PEAK FLOW ELEVATION ELEVATION MINUTES INCH/HR CFS FEET FEET ----------------- --------------------------- ------------------------- S�u,yr, 1JaPriS�r{cce ro(,� by IA'7-yr }'F-JeV In 1 1-2--.0-0- 2.00 .00 0-.0-0- 0-.0-0- .00 0-.0-0- .00 6.40 5055.50 5056.50 No P°^� 13.00 0.00 14.00 0.00 6.40 5058.50 5057.27 OK glj"e444 roI 14.00 1.95 14.00 3.28 6.40 5058.50 5057.47 OK ' OK MEANS WATER ELEVATION IS LOWER THAN GROUND ELEVATION ' *** SUMMARY OF SEWER HYDRAULICS ' NOTE: THE GIVEN FLOW DEPTH -TO -SEWER SIZE RATIO= .85 ------------------------------------------------------------------------------- SEWER MAMHOLE NUMBER SEWER REQUIRED SUGGESTED EXISTING ID NUMBER UPSTREAM DNSTREAM SHAPE DIA(HIGH) DIA(HIGH) DIA(HIGH) WIDTH ID NO. ID NO. (IN) (FT) (IN) (FT) (IN) (FT) (FT) ' 1213.00 --__... 13.00 ----- 12.00 ......... ROUND .... 9.12 - 12.00 - ----- 15.00 ---- 0.00 1314.00 14.00 13.00 ROUND 21.62 24.00 15.00 0.00 DIMENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES DIMENSION UNITS FOR BOX SEWER ARE IN FEET REQUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. SUGGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. FOR A NEW SEWER, FLOW WAS ANALYZED BY THE SUGGESTED SEWER SIZE; OTHERWISE, ' EXISITNG SIZE WAS USED ------------------------------------------------------------------------------- SEWER DESIGN FLOW NORMAL NORAML CRITIC CRITIC FULL FROUDE COMMENT ID FLOW 0 FULL 0 DEPTH VLCITY DEPTH VLCITY VLCITY NO. NUMBER CFS CFS FEET FPS FEET FPS FPS 1213.0 6.4 24.2 0.44 16.65 1.02 5.98 5.22 5.17 V-OK 1314.0 6.4 2.4 1.25 5.22 1.02 5.98 5.22 0.00 V-OK FROUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS ---------------------------------------- ----------------------- SEWER SLOPE INVERT ELEVATION BURIED DEPTH COMMENTS ID NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM ------- % (FT) ------------------------------------------------- (FT) (FT) (FT) 1213.00 10.00 5056.25 5053.45 1.00 0.80 NO 1314.00 0.10 5056.25 5056.25 1.00 1.00 OK OK MEANS BURIED DEPTH IS GREATER THAN REQUIRED SOIL COVER OF. 1 FEET ' *** SUMMARY OF HYDRAULIC GRADIENT LINE ALONG SEWERS -Do m-,friam ehd of-ppPjyllq h4.-� qo pord 1 9r0urd S0r44c e . oK SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW ID NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM DNSTREAM CONDITION FEET FEET FEET FEET FEET FEET ----- ------- ------- ------- ------- ---- 1213.00 28.00 18.00 5057.50 5054.70 5057.27 5056.50 JUMP 1314.00 1.00 0.00 5057.50 5057.50 5057.47 5057.27 PRSSIED PRSSIED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUSCR=SUBCRITICAL FLOW ' *** SUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS --------------------------------'-------------------------------------"'------ 'UPST MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE SEWER MANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY ID NO ID NO. ELEV FT FT K COEF LOSS FT K COEF LOSS FT ID FT -------------------------------------------------------- 1213.0 13.00 5057.69 . 0.77 1.00 0.42 0.00 0.00 12.00 5056.50 1=ne�9Y C,r4M ae c%4- T+7(e� �►'3 13 1314.0 14.0015057.90 0.10 0.25 0.11 0.00 0.00 13.00 5057.69 belay -tke inl6 elemhoo (So58,56� 'BEND LOSS =BEND K* FLOWING FULL VHEAD IN SEWER. LATERAL LOSS= OUTFLOW FULL VHEAD-JCT LOSS K*INFLOW FULL VHEAD FRICTION LOSS=O MEANS IT IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. FRICTION LOSS .INCLUDES SEWER INVERT DROP AT MANHOLE NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FT WOULD BE INTRODUCED UNLESS LATERAL K=O. ' FRICTION LOSS WAS ESTIMATED BY BACKWATER CURVE COMPUTATIONS. *** SUMMARY OF EARTH EXCAVATION VOLUME FOR COST ESTIMATE. ' THE TRENCH SIDE SLOPE _1 ------------------'---'-'--'--'-'-- ----- ------'---------------------------- MANHOLE GROUND INVERT MANHOLE ID NUMBER ELEVATION ELEVATION HEIGHT FT FT FT -------------------------------.--- 12.00 5055.50 5053.45 2.05 ' 13.00 5058.50 5056.25 2.25 14.00 5058.50 5056.25 2.25 ------------------------------------------------------------------------------- SEWER UPST TRENCH WIDTH DNST TRENCH WIDTH TRENCH WALL EARTH ID NUMBER ON GROUND AT INVERT ON GROUND AT INVERT LENGTH THICKNESS VOLUME ' FT FT FT FT INCHES CUBIC YD --------------------------"--------------FT 1213.00 4.88 3.63 4.47 -------- 3.63 28.00 2.25 12.1 1314.00 4.88 3.63 4.88 3.63 1.00 2.25 0.5 'TOTAL EARTH VOLUME FOR SEWER TRENCHES = 12.58832 CUBIC YARDS SEWER FLOW LINE IS DETERMINED BY THE USER EARTH VOLUME WAS ESTIMATED TO HAVE ' BOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • B B=ONE FEET WHEN DIAMETER OR WIDTH <=48 INCHES 'B=TWO FEET WHEN DIAMETER OR WIDTH >48 INCHES IF BOTTOM WIDTH <MINIMUM WIDTH, 2 FT, THE MINIMUM WIDTH WAS USED. 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LtIP 18, 5055.2 , 0, 1 ,1819, 0, 0 0 Ou+W Pipe 70'Porj A 4.4,0, 0.5, .65, 0 , 0 , 0 0 0 19, 5059.2 ,1819, 1 ,1920, 0 0 0 '4.4 , 0, 0.5 ,. 6 5, 0, 0 0 0 0 Y l 20, 5059.2 ,1920, 0, 0, 0 0 0 4.4, 0, 0.5 , .65 , 0, 0 0 0 0 t 2 1819, 164 ,0.91, 5058.20 , .011 1 , 0 , 1 , 18 , 0 — I7i021Civm 7>0nda 4-o.Sn(C+40ii 1920, 1 , 0.1, 5058.20 , .011 ,0.25 , 0 , 1 , 18 , 0 — Mande and 9v-m5ewer demernf5 are VYd fo 51mU6fd ihle� lost Pipe len)44, anti slope have hopAy5ical relellanee, 1 1 I 11 I 1 1 1 I 1 1 .1 1 PoriJ 0 4o Tnle444 REPORT OF STORM SEWER SYSTEM DESIGN USING UDSEWER-MODEL 2-10-1993 DEVELOPED BY ' JAMES C.Y. GUO ,PHD, PE DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER IN COOPERATION WITH URBAN.DRAINAGE AND FLOOD CONTROL DISTRICT DENVER, COLORADO ' ••• EXECUTED BY LIDSTONE AND ANDERSON................................................... ON DATA 08-31-1993 AT TIME 10:43:16 ' *•• PROJECT TITLE The Preserve - Stormsewer Analysis - Pond 2 to Inlet 4 `•• RETURN PERIOD OF FLOOD IS 100 YEARS RAINFALL INTENSITY FORMULA IS GIVEN ' • MARY OF SUBBASIN RUNOFF PREDICTIONS - -- -------------------- T11 CONCENTR I MANHOLE BASIN OVERLAND GU BASIN 1D NUMBER AREA • C To (MIN) (MIN) (MIN) ----------------------- -------------------- 18.00 0.3 0.00 0.00 0.00 19.00 .32 0.00 0.00 0.00 RAIN I PEAK FLOW INCH/HR CFS ----- �751.54 4.75\ 1.54 ' 20 0.32 0.00 0.00 5.00 THE SHORTEST DESIGN RAINFALL DURATION IS FIVE MINUTES 13.54 1 DENVER REGIONAL DRAINAGE CRITERIA WAS NOT USED TO CHECK THE COMPUTATION OF TIME OF CONCENTRATION ••• SUMMARY OF HYDRAULICS AT MANHOLES L7e5icjo FfowS Inpof a5 ven &6d. PiFF-5, 0u -Ae P"ewve 5-lomi seviei Am 1p-i- L&ecwe,� 0,4� ------------------------------------------------------------------------------- ' MANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GROUND WATER COMMENTS ID NUMBER AREA • C DURATION INTENSITY PEAK FLOW ELEVATION ELEVATION ' ----------------------MINUTES_ 18.00 0.00 INCH/HR--- CFS FEET FEET _______________________________'.__.._..^_.. 0.00 0.00 4.40 5055.20 5058.85 NO sIG�'ilr, WQfr�SJI{G(QC,I✓QY1'J �DD-y� Pbr^ ea W,S. elev. (n Pb. g 9 19.00 20.00 0.00 0.32 5.01 5.00 0.00 13.54 4.40 5059.20 4.40 5059.20 5 5-9.06 OK 1 �f 44raullc 6rc�ekn c 6l%-Z;11 r �7 5059.08 OK OK MEANS WATER ELEVATION IS LOWER THAN GROUND ELEVATION I '+* SUMMARY OF SEWER HYDRAULICS ' NOTE: THE GIVEN FLOW DEPTH -TO -SEWER SIZE RATIO= .85 ------------------------------------------------------------------------------- SEWER MAMHOLE NUMBER SEWER REQUIRED SUGGESTED EXISTING ID NUMBER UPSTREAM DNSTREAM SHAPE DIA(HIGH) DIA(HIGH) DIA(HIGH) WIDTH ID NO. ID NO. (IN) (FT) (IN) (FT) (IN) (FT) (FT) - -------------------------------------------------------------------------- 1819.00 19.00 18.00 ROUND 12.42 15.00 18.00 0.00 1920.00 20.00 19.00 ROUND 18.79 21.00 18.00 0.00 DIMENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES DIMENSION UNITS FOR BOX SEWER ARE IN FEET REQUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. SUGGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. FOR A NEW SEWER, FLOW WAS ANALYZED BY THE SUGGESTED SEWER SIZE; OTHERWISE, EXISITNG SIZE WAS USED ' SEWER DESIGN FLOW NORMAL NORAML CRITIC CRITIC FULL FROUDE COMMENT ID FLOW 0 FULL Q DEPTH VLCITY DEPTH . VLCITY VLCITY NO. NUMBER CFS CFS FEET FPS FEET FPS FPS ----------------------------------------------------------------------- 1819.0 4.4 11.9 0.63 6.21 0.81 4.52 2.49 1.58 V-OK 1920.0 4.4 3.9 1.50 2.49 0.81 4.52 2.49 0.00 V-OK FROUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS SEWER. SLOPE--INVERT-ELEVATION BURIED DEPTH COMMENTS ID NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM %------------------- (FT) (FT) (FT) (FT) 1819.00 0.91 5056.70 5055.21 1.00 -1.51 NO - 1920.00 0.10 5056.70 5056,70 1.00 1.00 OK ' OK MEANS BURIED DEPTH IS GREATER THAN REQUIRED SOIL COVER OF, 1 FEET I*** SUMMARY OF HYDRAULIC GRADIENT LINE ALONG SEWERS -D,,., 'ream en d o4 p (pe day 119143 +o, Pand a 9round'sorpaev. Ose, SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW ID NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM DNSTREAM CONDITION FEET FEET FEET FEET FEET FEET 1 ---- ---- ---- ._. ---- ' ---- 1819.00 164.00 164.00 5058.20 5056.71 5059.06 5058.85 PRSS'ED 1920.00 1.00 1.00 5058.20 5058.20 5059.08 5059.06 PRSSIED tRSSIED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUSCR=SUSCRITICAL FLOW 1 *** SUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS ------------------------------------------------------------------------------- MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE 'UPST SEWER MANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY ID NO ID NO. ELEV FT FT K COEF LOSS FT K COEF LOSS FT ID FT - ----- ------- ---- ---- ---- -----.'----- ----- 1819.0 19.00 5059.15 0.21 1.00 0.10 0.00 0.00 18.00 ------- 5058.85 Ener fgde �'ne A-' In lei 1920.0 20.00 5059.18 0.00 0.25 0.02 0.00 0.00 19.00 5059.15 b@low y9lecletlufion C5059,9O, 'BEND LOSS =BEND K* FLOWING FULL VHEAD IN SEWER. LATERAL LOSS= OUTFLOW FULL VHEAD-JCT LOSS K*INFLOW FULL VHEAD FRICTION LOSS=O MEANS IT IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. FRICTION LOSS INCLUDES SEWER INVERT DROP AT MANHOLE NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FT WOULD BE INTRODUCED UNLESS LATERAL K=O. FRICTION LOSS WAS ESTIMATED BY BACKWATER CURVE COMPUTATIONS. *** SUMMARY OF EARTH EXCAVATION VOLUME FOR COST ESTIMATE. THE ----- -TRENCH SIDE SLOPE _---------------- MANHOLE GROUND INVERT MANHOLE ID NUMBER ELEVATION ELEVATION HEIGHT FT -----------------FTFT ------------------ 18.00 5055.20 5055.21 -0.01 19.00 5059.20 .5056.70 2.50 20.00 5059.20 5056.70 2.50 ------------------------------------------------------------------------------- SEWER UPST TRENCH WIDTH DNST TRENCH WIDTH TRENCH WALL EARTH ID NUMBER ON GROUND AT INVERT ON GROUND AT INVERT LENGTH THICKNESS VOLUME FTFT ---------------------------------FTFT FT INCHES CUBIC YD --------- 1819.00 5.08 3.92 3.92 3.92 164.00 2.50 77.3 1920.00 5.08 3.92 5.09 3.92 1.00 2.50 0.5 TOTAL EARTH VOLUME FOR SEWER TRENCHES = 77,78755 CUBIC YARDS SEWER FLOW LINE IS DETERMINED BY THE USER EARTH VOLUME WAS ESTIMATED TO HAVE BOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • 8 B=ONE FEET WHEN DIAMETER OR WIDTH <=48 INCHES B=TWO FEET WHEN DIAMETER OR WIDTH 1,48 INCHES IF BOTTOM WIDTH <MINIMUM WIDTH, 2 FT, THE MINIMUM WIDTH WAS USED. 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CLD File: PRE-6.DAT 1 , 12 , 20 , 2 , 2 , 1 , .85 , 500 , 500 , .2 , N ' 1 100 1.4 , 28.5 10 .786 4 '20, 5055.6 , 0 1 ,2021, 0 0 0 11.7 , 0, 1.3 .6 5, 0, 0 0 0 0 pipe O� Ie�}V -pond 1ka p 21, 5060.5 ,2021, 1 ,2122, 0 0 0 M, I; -a- A 11.7 , 0, 1.3 ,. 6 5, 0, 0 0 0 0 22, 5059.2 ,2122, 1 ;2223, 0 , 0 , 0 Inlet �5 11.7 , 0, 1.3 ,. 6 5, 0, 0, 0 0 0 23, 5059.2 ,2223, 0 , 0 , 0 , 0 , 0 *-To14 I-o55 PRE -�. DOT 7�e Pre5er✓e 5forvn 5epier kmi l y5, ' 11.1, 0 1.3 .65 , 0 0, 0 0 0 3 2021, 59 , 0.4, 5057,86 , .011 1 0 , 1 , 24 , 0 — p pe Fiom RmJ94o MN ,7-13 '2122, 35 , 0.4, 5058.20 .011 ,0.08 , 0 , 1 , 24 , 0 — Ppe From tjA9.8-S fo 1'rlle+%45 2223, 1 , 0.1, 5058.20 , .011 ,0.25 , 0 , 1 , 24 , 0 — * Tile{4D55 ' MgnWe and 5-FormSevjere(emenf� are o5ed to 5trrola4e lnle�loSS Ripe lent'A and Slope have rjo physical rele+1avxe, 1 1 �l J i 1 I I 1 1 1 Pond a +O 1. 4+45 1 REPORT OF STORM SEWER SYSTEM DESIGN USING UDSEWER-MODEL 2-10-1993 DEVELOPED BY JAMES C.Y. GUO ,PHD, PE DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER IN COOPERATION WITH URBAN DRAINAGE AND FLOOD CONTROL DISTRICT DENVER, COLORADO --------------- *** EXECUTED BY LIDSTONE AND ANDERSON................................................... ON DATA 09-01-1993 AT TIME 15:03:18 ' *** PROJECT TITLE The Preserve - Stormsewer Analysis - Pond 2 to Inlet 5 *** RETURN PERIOD OF FLOOD IS 100 YEARS RAINFALL INTENSITY FORMULA IS GIVEN OF SUBBASIN RUNOFF PREDICTIONS '---------------- ------------------------------ 'T-'----- IME OF CONCENTRATIO MANHOLE BASIN OVERLAND TTER ID NUMBER AREA * C To (MIN) Tf '-'-"' - --.---""-.". - - - 20.00 0.84 .00 0.00 21.00 0. 0.00 0.00 22.00 0.84 0.00 0.00 ' 23 0.B4 0.00 0.00 -� BASIN RAIN I PEAK FLOW Te (MIN) INCH/HR CFS 0. 4.75 4.01 0.00 .75 4.01 0.00 4. 4.01 5.00 13.85 0 THE SHORTEST DESIGN RAINFALL DURATION IS FIVE MINUTES DENVER REGIONAL DRAINAGE CRITERIA WAS NOT USED TO CHECK THE COMPUTATION OF TIME OF CONCENTRATION ' *** SUMMARY OF HYDRAULICS AT.14ANHOLES Flow5 l n pi) - ctS The pre5ef ve %1-ensNe,-AvY5r, L)D%jef- GW-pv- ' 1-----------------------=------------------------------------------------------- MANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GROUND WATER COMMENTS ID NUMBER AREA ' C DURATION MINUTES INTENSITY INCHIHR PEAK FLOW CFS ELEVATION ELEVATION FEET ------------- -------------------------FEET ------- fi e Ele 70,7 I en j,/ �und[c1 20.00 0.00 0.00 0.00 11.70 5055.60 5058.85 NO I� WA5 21.00 0.00 5.10 0.00 11.70 5060.50 5058.96 OK 22.00 0.00 5.00 0.00 11.70 5059.20 5059.05 OK 23.00 0.84 5.00 13.85 11.70 5059.20 5059.10 OK OK MEANS WATER ELEVATION 1S LOWER THAN GROUND ELEVATION q AYJ(GL)IIG L-ll-CJe11✓le �1vf'e; WaF�r'Sul�ace �5 be(o� MN an( I,,Icf�S SUMMARY OF SEWER HYDRAULICS L� R1rn ele✓aT1oY1S- NOTE: THE GIVEN FLOW DEPTH -TO -SEWER SIZE RATIO= .85 ------------------------------------------------------------------------------- SEWER MAMHOLE NUMBER SEWER REQUIRED SUGGESTED EXISTING ID NUMBER UPSTREAM DNSTREAM SHAPE DIA(HIGH) DIA(HIGH) DIA(HIGH) WIDTH ' ID NO. ID NO. (IN) (FT) (1N) (FT) (IN) (FT) (FT) ------------------------------------------------------------------------------- 2021,00 21,00 20.00 ROUND 20.91 21,00 14.00 0,10 2122.00 22.00 21.00 ROUND 20.91 21.00 24.00 0.00 2223.00 23.00 22.00 ROUND 27.11 30.00 24.00 0.00 ' DIMENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES DIMENSION UNITS FOR BOX SEWER ARE IN FEET REQUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. SUGGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. FOR A NEW SEWER, FLOW WAS ANALYZED BY THE SUGGESTED SEWER SIZE; OTHERWISE, EXISITNG SIZE WAS USED ------------------------------------------------------------------------------- SEWER DESIGN FLOW NORMAL NORAML CRITIC CRITIC FULL FROUDE COMMENT ID FLOW 0 FULL 0 DEPTH VLCITY DEPTH VLCITY VLCITY NO. NUMBER CFS CFS FEET FPS FEET FPS FPS ------------------------------------------------------------------------------- 2021.0 11.7 17.0 1.22 5.82 1.22 5.81 3.72 1.01 V-OK 2122.0 11.7 17.0 1.22 5.82 1.22 5.81 3.72 1.01 V-OK 2223.0 11.7 8.5 2.00 3.72 1.22 5.81 3.72 0.00 V-OK ' FROUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS ---------------------------------------------------------------------- SEWER SLOPE INVERT ELEVATION BURIED DEPTH COMMENTS ID NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM '(FT) (FT) (FT) (FT) ------------------- - 2621.00 0.40 5055.86 5055.62 2.64 -2.02 NO i71 e oo+IQf3 i-o �o�d a 9rvJnd 2122.00 0.40 5056.20 5056.06 1.00 2.44 OK Q (eAfion , OK , 2223.00 0.10 5056.20 5056.20 1.00 1.00 OK ' OK MEANS BURIED DEPTH IS GREATER THAN REQUIRED SOIL COVER OF 1 FEET 1 *** SUMMARY OF HYDRAULIC GRADIENT LINE ALONG SEWERS ------------------------------------------------------------------------------- SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW ' ID NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM DNSTREAM CONDITION FEET FEET FEET FEET FEET FEET ------------------------------------------------------------------------------- 2021.00 59.00 59.00 5057.86 5057.62 5058.96 5058.85 PRSSIED 2122.00 35.00 35.00 5058.20 5058.06 5059.05 5058.96 PRSSIED 2223.00 1.00 1.00 5058.20 5058.20 5059.10 5059.05 PRSSIED ' PRSSIED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUSCR=SUSCRITICAL FLOW *** SUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS ------------------------------------------------------------------------------- 'UPST MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE SEWER MANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY ID NO 1D NO. ELEV FT FT K COEF LOSS FT K COEF LOSS FT ID FT ------------------------------------------------------------------------------- 2021.0 21.00 5059.18 0.11 1.00 0.22 0.00 0.00 20.D0 5058.85 2122.0 22.00 5059.26 0.07 0.08 0.02 0.00 0.00 21.00 5059.18 Ene� ,/ C,rp�e�I�+c of Inlct #5 ig 2223.0 23.0015059.32 0.00 0.25 0.05 0.00 0.00 22.00 5059.26 4 oboye e IYll6elev4al ' BEND LOSS =BEND K* FLOWING FULL VHEAD IN SEWER. bJ 0A �'h r 761e(ePool) 4e, LATERAL LOSS= OUTFLOW FULL VHEAD-JCT LOSS K•INFLOW FULL VHEAD bdo.) 4e FRICTION LOSS=O MEANS IT IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. elY1e�9y is 5+111 ?cWed ! FRICTION LOSS INCLUDES SEWER INVERT DROP AT MANHOLE vJa e,soiruC2ci,L NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FT WOULD BE INTRODUCED UNLESS LATERAL K=O. ' FRICTION LOSS WAS ESTIMATED BY BACKWATER CURVE COMPUTATIONS. •*• SUMMARY OF EARTH EXCAVATION VOLUME FOR COST ESTIMATE. ' THE TRENCH .SIDE SLOPE _ 1 ------ ------------ - MANHOLE GROUND INVERT MANHOLE ID NUMBER ELEVATION ELEVATION HEIGHT ' FT FT FT ------------------------------------------------------------------------------- 20.00 5055.60 5055.62 -0.02 21.00 5060.50 5055.86 4.64 22.00 5059.20 5056.20 3.00 23.00 5059.20 5056.20 3.00 ------------------------------------------------------------------------------- UPST TRENCH WIDTH DNST TRENCH WIDTH TRENCH WALL EARTH 'SEWER 1D NUMBER ON GROUND AT INVERT ON GROUND AT INVERT LENGTH THICKNESS VOLUME FT FT FT ' FT FT INCHES CUBIC YD ------------------------------------------------------------------------------- 2021.00 8.78 4.50 4.50 4.50 59.00 3.00 49.8 2122.00 5.50 4.50 8.38 4.50 35.00 3.00 30.1 ' 2223.00 5.50 4.50 5.50 4.50 1.00 3.00 0.7 TOTAL EARTH VOLUME FOR SEWER TRENCHES = 80.6361 CUBIC YARDS IEWER FLOW LINE IS DETERMINED BY THE USER EARTH VOLUME WAS ESTIMATED TO HAVE BOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • B B=ONE FEET WHEN DIAMETER OR WIDTH <=48 INCHES B=TWO FEET WHEN DIAMETER OR WIDTH >48 INCHES 'IF BOTTOM WIDTH <MINIMUM WIDTH, 2 FT, THE MINIMUM WIDTH WAS BACKFILL DEPTH UNDER SEWER WAS ASSUMED TO BE ONE FOOT USED. SEWER WALL THICKNESS=EOIVLNT DIAMATER IN INCH/12 +1 IN INCHES 1 1 1 1 1 1 1 1 ,L - ({ ,.A• Zi1 "',t ' Y .'.� ,. G. i 1 "t x 1 F ♦ ...1 1 .. 1 .,e .1 K .'y b t t, ,, ,,. 4 I "^ .. F -I ;, , f- a + rt 1 J. ' t, t / P a,, s .. i r. t -t . - d- 4 y C ,. I f L e J t r +a ^ , n t f yi1 b ` a ..bJ t r - 3 r .. - , •5' ! 4. e x � S r'i 1y f r� � ^ .. y ' f i , `' _ 1. iL * , I � . � 4 J[ . - I I, ,L *-.,1- ., ,�.— �, I,..,I�1 .,� r.', , 1 1 ,, %• t 1 L '. L:.-. . � �I . ... .I.. ., % C t �L: , A rl 1 ' .. -, 1_ I, � .1 I . %. .I , ,--� , - '. - .II .. �%.: ", '� -o L1 �, O�.I , 1 I: .� ,- ,- .,. ',�. ,-,.. ..Ir ., .-," �, I,' 6 1. ." �� , ,, I -... I.I,. r„A I , �,I � J' � ".. �.,, , 1,, . :, � , ".-I .- .t .�"A ,� , . , II .. ,,_ � 4I�. ,.I. ., . . . '1;�,�, , .1,I ,. . j r d ,, :, - �-- -I ., ., ,,, ,.` . , ,. ,. 4f I �� ti ,� 1i .L � ,. . "1 , .. -� -,L- -1. III ,. -,�. , - '. -- 1., �� -., ,, - I . .,-I ,.,- I, . .,1 . .�, M -f t I a , . , ,r '. . , ,-.,- L. .II11 , ', . ,,.1 . -A J•' A I41L 4 5 y. t 1 S ', 1 : _I ,x . 1 . -,. ,-I' .�, :,I '� �� ', .., I,.., *, -I I� LA :"- ? , p .,- . I, I,. ,'' , .. t r t. . .-1 - ti J 4 h r r r , , , J t L . l .- .' t T ` 1Vla1.nhole C; °1 to °,Inlet '#10 t `,- , .. '.aY i i t iY-, t l r 4J J' I1) t% T: t;' I 5} r , J . ,- �� r t I! !.'.. Y i is A { . , y ` { % r, 4 J Y J 9b \ ..Y 4 l 1 1 i .. t .r _ , c yl r r •s 1I i y) C t P j y j l' 1 - 1 -I."', ;^ ,1 I..� - . ; ,.,,I� ,.. . , ,L ,i�' ., I�, 5. \ 1 . f) I t r j f t . .,:, 7 ) y t � 1,.. I4�.rr,I I } T 1 . I-, p II,II, , . �L ,,. , . 3 l I.; , t1 , ,. .--' �I .I. Zt 1 tJ z J . ,� �" J I ' -j ,;.� I, l J 1 b l , �,, I �� , - ., tI I �:.. I r 1 ,.� ,.- ," , . . . -. . 4- ,L..- ., ,." .. 1,.. ," � ., . . - . r, ,7�, 4 , II ..1��. .' I-, i i 'r A i '. I1� - � .1 :"I.- J i' r . , ,� ,.. -I .�,1.I:. 1�I"— , . 2, ,- I�,.,,, ;T-:�..�,-- 4 , � - I �� � , �. � �� I1, ,. ".. .; -.I "I�� � .I . . .;,,I I,-� ;-��' �,,,, �� 1 .,..' 1 .�, I- I", . � , . I � , . ,--I „- S` .*I,I; ' I. .. �. . I 1• .. j I , 1 I.,, _ ! J1t. ,�,.,. � -+ r r 1 J I.i ,, . - � I-'. ,._,"- ��II,t -�., I . - � .: .,. L I '. ,�,-,..I. II. 41' , - I .-, :� t ! \S � , -, -r �. 1 A r s 1 , 1 .r rl ,., - , -I ,, ". -l Y 1 y t .t. t :Iw ( .I -1 .L i . . ..... f "r ' ' Yr,- 1 t t r"f ` . E` tI q. % r 1 , J rJ ..r Lr ✓ ,p f r Manhole C-� -fo Inlef *(a (R v, 3) She Preserve - Stormseuer Analysis - MH C-1 to Inlet 10 COTSTI6 10-1-1993 L&A Inc. CLD file: PRE-8.DAT 1 , 12 , 20 2 , 2 , 1 , .85 , 500 , 500 , .2 ,N '1 100 1.4 , 28.5 10 .786 3 1,5045.5 0 1 , 128,000 3.6, 0, 7.0, .65, 0, 0, 0, 0, 0� Manhole C'1 28, 5050.0 , 128, 1 , 2829, 0 0 0 [— S� 1e f # to ` /�L f, 13 OJlfe+) 3.6 , 0, 7.0 ,. 6 5, 0, 0 0 0 0 29, 5050.0 ,2829, 0 , 0 , 0 , 0 , 0 k Thle� Lv�s 3.6 , 0 , 7.0 , .65 , 0 , 0 0 0 0 2 ' 128 , 125 ,3.69, 5045.95 , .013 , 1 , 0 1 , 15 , 0 — Ptpe�'fvm Ma✓1h01C C'' f p .44 10 c829, 1 , C.1, 5045.95 , .013 ,0.25 , 0 1 , 15 , 0 MGnhvie and 5+vrm,eoee- elermehr-� uie used 4-o5imole4e m14 1055 Pipe tenth avt 't1olve have no physiu,I Mek/40te 1 1 I 1 1 Ll 99 -v • -DflT -TAe are5erVZ 5tv((n5epuei f4rlaly5lh UD5ewce Try&4 1 Auld( e 0-1 +o Tnfef l0 ------------------------------------------ ------ -------------------------- ' REPORT OF STORM SEWER SYSTEM DESIGN ' USING UDSEWER-MODEL 2-10-1993 DEVELOPED BY JAMES C.Y. GUO ,PHD, PE DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER ?N COOPERATION WITH URBAN DRAINAGE AND FLOOD CONTROL DISTRICT ' DENVER, COLORADO ------'----------------------------------------------------------------------- ' *** EXECUTED BY LIDSTONE AND ANDERSON................................................... ON DATA 10-03-1993 AT TIME 06:30:21 *•* PROJECT TITLE : ' The Preserve - Stormseuer Analysis - MH C-1 to Inlet 10 *** RETURN PERIOD OF FLOOD IS 100 YEARS RAINFALL INTENSITY FORMULA IS GIVEN ' *** SUMMARY OF SUBBASIN RUNOFF PREDICTIONS ---- ------------------------------------------------------------ TIME OF CONCENTRATION MANHOLE BASIN AND GUTTER BASI IN I PEAK FLOW iD NUMBER AREA * C To (MI (MIN) IN) INCHAR CFS ---------------------------------- - ----------------------------- 1.00 4.55 0.00 4.75 21.61 28.00 4. 0.00 0.00 0.00 21.61 29.00 4.55 0.00 0.00 136.64 0.79 0 THE SHORTEST DESIGN RAINFALL DURATION IS FIVE MINUTES ' DENVER REGIONAL DRAINAGE CRITERIA WAS NOT USED TO CHECK THE COMPUTATION OF TIME OF CONCENTRATION ' *** SUMMARY OF HYDRAULICS AT MANHOLES pre -8.OL) I e P✓rye✓✓e 5iorfnyar Av IX515 Mewer OAPUJ ' ,Pmlgn Roa.5 , np c,4A5 given Woo ------------------------------------------------- ' MANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GROUND WATER COMMENTS ID NUMBER AREA • C DURATION INTENSITY PEAK FLOW ELEVATION ELEVATION MINUTES INCH/HR CFS FEET FEET - ' �" I`� S�A/�IK, ICI WSJ/TUGEAGTefMn1P(L7✓ crl)( 41 �ep+h k pipe a+ M4nhcic 1.00 28.00 0.00 0.00 0.00 136.65 0.00 0.00 3.60 3.60 5045.50 5050.00 5040.85 OK 5045.46 OK {{ drod� i c Gic�2�IhQ a{- �,fef ((� y 29.00 4.55 136.64 0.79 3.60 5050.00 5045.60 OK OK MEANS WATER ELEVATION IS LOWER THAN GROUND ELEVATION •'• SUMMARY OF SEWER HYDRAULICS ' NOTE: THE GIVEN FLOW DEPTH -TO -SEWER SIZE RATIO= .85 ------------------------------------------------------------------------------- 'SEWER MANHOLE NUMBER SEWER REQUIRED SUGGESTED EXISTING ID NUMBER UPSTREAM DNSTREAM SHAPE DIA(HIGH) DIA(HIGH) DIA(HIGH) WIDTH ID NO. ID NO. (IN) (FT) (IN) (FT) (IN) (FT) (FT) 128.00 28.00 1.00 ROUND 9.43 12.00 15.00 0.00 -------------------------------------------------------------------- 2829.00 29.00. 28.00 ROUND 18.55 21.00 .15.00 0.00 DIMENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES DIMENSION UNITS FOR BOX SEWER ARE IN FEET 'REQUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. SUGGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. FOR A NEW SEWER, FLOW WAS ANALYZED BY THE SUGGESTED SEWER SIZE; OTHERWISE, EXISITNG SIZE WAS USED .............'...-'.------------------........--------------------------------- ' SEWER DESIGN FLOW NORMAL NORAML CRITIC CRITIC FULL FROUDE COMMENT ID FLOW 0 ,FULL 0 DEPTH VLCITY DEPTH VLCITY VLCITY NO. NUMBER CPS CFS FEET FPS FEET FPS FPS 128.0 3.6 12.4 0.46 8.77 0.76 4.58 2.93 2.65 V-OK 2829.0 3.6 2.0 1.25 2.93 0.76 4.58 2.93 0.00 V-OK FROUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS SEWER SLOPE INVERT ELEVATION BURIED DEPTH COMMENTS ID NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM ------------------- (FT) (FT) (FT) (FT) 128.00 3.69 5044.70 5040.09 4.05 4.16 OK ' 2829.00 0.10 5044,70 5044.70 4.05 4.05 OK OK MEANS BURIED DEPTH IS GREATER THAN REQUIRED SOIL COVER OF. 1 FEET ' "• SUMMARY OF HYDRAULIC GRADIENT LINE ALONG SEWERS ' SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW ID NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM DNSTREAM CONDITION FEET FEET FEET FEET FEET FEET --------------------------------------------------------- 128.00 125.00 0.00 5045.95 5041.34 5045.46 5040.85 JUMP 2829.00 1.00 0.00 5045.95 5045.95 5045.60 5045.46 PRSSIED IRSSfED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUBCR=SUBCRITICAL FLOW ** SUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS ------------------------------------------------------------------------------- 'UPST MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE SEWER MANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY ID NO 1D NO. ELEV FT FT K COEF LOSS FT K COEF LOSS FT 1D FT -----' ------- ....---- '...---- '-..---- 128.0 28.00 5045.60 4.61 1.00 ---- .....-..---- 0.13 0.00 0.00 1.00 ------- 5040.85 2829.0 29.00 0.10 0.25 0.03 0.00 0.00 28.00 5045.60 Ener9� (aoehAe 4f r?OAd3 IS be(o -j larded k,:r BEND LOSS =BEND K* FLOWING FULL VHEAD IN SEWER. LATERAL LOSS= OUTFLOW FULL VHEAD-JCT LOSS K*INFLOW FULL VHEAD FRICTION LOSS=O MEANS IT IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. 'FRICTION LOSS INCLUDES SEWER INVERT DROP AT MANHOLE NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FT WOULD BE INTRODUCED UNLESS LATERAL K=O. FRICTION LOSS WAS ESTIMATED'BY BACKWATER CURVE COMPUTATIONS. *** SUMMARY OF EARTH EXCAVATION VOLUME"FOR COST ESTIMATE. '-----THE TRENCH SIDE SLOPE = 1 MANHOLE GROUND ----------------- INVERT MANHOLE ID NUMBER ELEVATION ELEVATION HEIGHT ' FT FT FT ----'------------'------- 1.00 " 5045.50 5040.09 5.41 ' 28.00 5050.00 5044.70 5.30 29.00 5050.00 5044.70 5.30 ------------------------------------------------------------------------------- SEWER UPST TRENCH WIDTH DNST TRENCH WIDTH TRENCH WALL EARTH 1D NUMBER ON GROUND AT INVERT ON GROUND AT INVERT LENGTH THICKNESS VOLUME ' FT FT FT -- INCHES CUBIC YD --------------------------------FT 12M0 10.97 3.63 ---------FT 11.20 3.63 125.00 2.25 171.1 2829.00 10.97 3.63 10.98 3.63 1.00 2.25 1.3 'TOTAL EARTH VOLUME FOR SEWER TRENCHES = 172.4737 CUBIC YARDS SEWER FLOW LINE IS DETERMINED BY THE USER EARTH VOLUME WAS ESTIMATED TO HAVE BOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • B B=ONE FEET WHEN DIAMETER OR WIDTH <=48 INCHES B=TWO FEET WHEN DIAMETER OR WIDTH >48 INCHES IF BOTTOM WIDTH <MINIMUM WIDTH, 2 FT, THE MINIMUM WIDTH WAS USED. BACKFILL DEPTH UNDER SEWER WAS ASSUMED TO BE ONE FOOT SEWER WALL THICKNESS=EGIVLNT DIAMATER IN INCH/12 +1 IN INCHES 77 CIS r V fR �••3 - '+ o t � � 1 I t � t t / � "F• 4 1. R � . • Va R 1 l t r t � r � r "' L ♦ r _ l R • f r r I 1.I,a• I a J r A A y. t ! 1 � Y r _ t t Y i t i 1 '. ♦ I • .r J �' ( r r. r s � 4 ` v � -.t 1 .Y,, �' ♦ •- , � `. 1. 'Pond �t 3 to Rai ntree 1 Existing) f _} •,r k v } ?< 7 . r^ J ^ ` _r +. try .+ ♦ I 1 a .4-' • V '•! 1 l f r 1 . 1 � { " I F 1 1 F / +o �x�5�nq k�avl1i:e r,The Preserve - Stormseuer Analysis -Inlet 10 to Raintree COTST16 10-1-1993 L&A Inc. CLD File: PRE-9.DAT T 1 12 , 20 2 2 , 1 , .85 , 500 , 500 , .2 ,N 1100 1.4 , 28.5 , 10 , .786 5�armsc�e�TI1A��5�` 12 '29, 5049.0 0 1 ,2930, 0 0 0 I Jn1eL j 1O (T r 4 OAe+1 r 12.0, 0, 6.1 .65 , 0, 0, 0 0, 0 T 0 7 30, 5059.8 ,2930, 2 ,3031,3034,0 0 12.0, 0 , 6.1 , .65 , 0 , 0 , 0 , 0 , 0� GXi5�1/� MO'1rIril¢ 31, 5059.8 ,3031, 1 ,3132, 0 , 0 0 I �X�S jn/qq tl�rWe 7.0 , 0, 2.9 , .65 , 0, 0 0 0 0 J ,32, 5052.89,3132, 1 ,3233, 0 0 0 /rSwAle�nd 7.0,0, 2.9,.6500000 33, 5052.89,3233, 0 0 0 0 0 I te- Lo 7.0 , 0, 2.9 ,. 65 0 0 0 0 0 34, 5060.75,3034, 1 ,3435, 0 0 0QrZ 4.0 0 3.2 .65 0 0 0 0 0 35, 5058.14,3435, 3 ,3536,3537,3539,0 L T- '4.0 , 0 , 3.2 , .65 , 0 , 0 , 0 , 0 , Of' R41nhee L�we sQ�Tyi11ef 36, 5058.14,3536, 0, 0, 0 1.3,0, 3.2, .65, 0,0 0 ,37, 5057.92,3537, 1 ,3738, 0 , 0 , 0 e(411 (ee '1Ve We`�' ri(ef 1.3, 0, 3.2, .65, 0, 0, 0 0,0� 38, 5057.92,3738, 0 , 0 , 0 0 Ole 1.3, 0, 3.2, .65, 0, 0 0 0 0 T 39, 5053.99,3539, 1 ,3940, 0 0 0 1.3 , 0 , 3.2 , .65 , 0 , 0 0 , 0 , 0 F�'Sn� ��I�OnC �C1 40, 5053.99,3940, 0 , 0 , 0 0 , 0 # y„'4J L! L_5� 1.3, 0, 3.2, .65, 0,.0 0 0 0 11 2930, 125 , 3.69, 5051.30 , .013 , 1 , 0 , 1 , 24 , 0 — -/PO4^, Tn e+OrotO 5xm-)hnj M4K'dC 303.1, 50 ,-4,50, 5047,64 , .013 ,0,28 , 0.35 , 1 , 15 , 0 — s+ota5ewer 3132, 60 10.6; 5054.39 , .013 ,0.28 , 0 , 1 , 18 , 0 — FA�git�yr S-'Oryl.,eoe,-fn "5g* b,-J OAclL 3233, 1 , 0.10, 5054.39 , .013 ,0.25 , 0 , 1 , 18 , 0 — 3034, 155 ,-1.17, 5048.94 , .013 ,0.46 , 0 1 , 15 , 0 - �y�`t�7� 54-OrrAjewer 3435, 185 , 2.48, 5053.57 , .013 ,0.08 , 0 1 , 15 , 0 £}�.Sh Sfarrrjeaer-!v I?A&nffCd EwefLAk� 3536, 1 , 0.10, 5053.57 , .013 ,0.25 , 0 1 , 15 , 0 4-Tj{er SS 3537, 50 , 0.40, 5052.86 , .013 ,1.00 , 0.50 , 1 , 15 , 0 — >;Y1Sh�J 5+orm*eWe.--iv (�'ar1}/se ►Jest Tnlif 3738, 1 , 0.10, 5052.86 , .013 ,0.25 , 0 1 15 0 frALk{- LOSS � L 3539, 12 5.58, 5055.24 , .013 , 0.28 , 0 1 15 0r�Tln �}o rm5e,1(� r'n 3940, 1 0.10, 5055.24 , .013 ,0.25 , 0 1 15 , 0 4 Snjl� (a.,s r I ' �nq J 4o FXlj(yAtee ------------------------------------------------------------------------------ REPORT OF STORM SEWER SYSTEM DESIGN USING UDSEWER-MODEL 2-10-1993 DEVELOPED BY ' JAMES C.Y. GUO ,PHD, PE DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER IN COOPERATION WITH URBAN DRAINAGE AND FLOOD CONTROL DISTRICT ' DENVER, COLORADO ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ 1 ' *** EXECUTED BY LIDSTONE AND ANDERSON................................................... ON DATA 10-04-1993 AT TIME 05:03:10 *** PROJECT TITLE IThe Preserve - Stormsewer Analysis -Inlet 10 to Raintree *** RETURN PERIOD OF FLOOD IS 100 YEARS RAINFALL INTENSITY FORMULA IS GIVEN '*** SUMMARY OF SUBBASIN RUNOFF PREDICTIONS - ---------------------- --- TIME OF -'.------------------------------- CONCENTRATION MANHOLE SIN OVERLAND GUTTER BASIN RAIN PEAK FLOW ID NUMBER AREA C TO (MIN) Tf (MIN) Tc (MIN) I /HR CFS -- ------ --- 29.00 3.96 0.00 - ----- 0.00 -- ----- 0 --- 4.75 - --- 18.83 30.00 3.96 0. 0.00 0.00 4.75 18.83 31.00 1.88 0.00 0. 0.00 4.75 8.95 ' 32.00 1.88 0.00 00 0.00 4.75 8.95 33.00 1.88 0.00 0.0 10.51 3.71 7.00 34.00 2.08 0 0.00 0.00 4.75 9.88 ' 35.00 2.08 0.00 0.00 0. 4.75 9.88 36.00 2.0 0.00 0.00 187.95 0.63 1.30 37.00 .08 0.00 0.00 0.00 9.88 38.00 2.08 0,00 0.00 187.95 0.6 1,30 39 2.08 0.00 0.00 0.00 4.75 9.86 .00 2.08 0.00 0.00 187.95 0.63 1. ' THE SHORTEST DESIGN RAINFALL DURATION IS FIVE MINUTES ���-q • oar The Pri5et-ve 5faorywe- Ai IP15 (2D5e I-a4pu� D51(Arje51np.4G5 jlvenbelow 'DENVER REGIONAL DRAINAGE CRITERIA WAS NOT USED TO CHECK THE COMPUTATION OF TIME OF CONCENTRATION 1 *** SUMMARY OF HYDRAULICS AT MANHOLES (1415 foep-Jh1 P�jouile�s,I �1PE Iri++f f ltfOoo d e II &)A v rj , --------------------------------------------------- ---- - -- --u 9 MANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GROUND WATER COMMENTS ID NUMBER AREA * C DURATION INTENSITY PEAK FLOW LEVATION ELEVATION MINUTES INCH/HR CFS FEET FEET ' 29.00 0.00 30.00 0.00 0.00 0.00 189.43 0.00 12.00 12.00 5049.00 50-52.5-01 NO 5059.80 5052.85 OK IDd'Yt� Maxtonum Wa4t 5�14nce' e eva-hon n 31.00 32.00 0.00 0.00 10.58 10.51 0.00 0.00 7.00 7.00 5059.80 5052.89 5053.35 , 5053.91 OK NO p o 5vja� f�dnd�Jfle� C)rxis{��y Cand1fton Wafti¢le✓o410A a+ 5O5+108b ' 33.00 34.00 35.00 36.00 37.00 38,00 39.00 40.00 1.88 0.00 0.00 2.08 0.00 2,011 0.00 2.08 10.51 188.64 188.24 187.95 187.96 187,95 187.96 187.95 3.71 0.00 0.00 0.63 0.00 0,63 0.00 0.63 7.00 4.00 4.00 1.30 1.30 1,30 1.30 1.30 5052.89 5060.75 5058.14 5058.14 5057.92 5157,92 5053.99 I 5053.99 5054.07 5053.58 5054.301 5054.45 5054.64 5054,64 5054.45 5054.55 NO OK OK OK OK OK NO NO Qo,elfreC Dr. Ea<,+Sn le4. 1 �e' urG�l�SJr�GdG (E'xts+,dAAJ �� ��3.13) 15 bebu inIC4 pDJI,tiC Gle(af�Or1 Rm4liee Dr, Wes+T;4e r„leJ. p9r4wnwice C5p- I•) doAd,,h`i'-W,4) -,ncr' ePrec' ed• "Vteporj O�'W " ''] [pnLil>I1or1 Wc,+c,-elev4,fioi a4- 5054, B5 OK MEANS WATER ELEVATION IS LOWER THAN GROUND ELEVATION *** SUMMARY OF SEWER HYDRAULICS NOTE: THE GIVEN FLOW DEPTH -TO -SEWER SIZE RATIO= .85 ---- ------- ------ - ----- -------- --------- ------ -------- SEWER MANHOLE NUMBER SEWER REQUIRED SUGGESTED EXISTING ID NUMBER UPSTREAM DNSTREAM SHAPE DIA(H1GH) DIA(HIGH) DIA(H)GH) WIDTH ID NO. ID NO_...._.__...(IN) (FT) (IN) (FT) (IN) (FT) (FT) 2930.00 -------_ 30.00 29.00 ROUND -------------------------------- 14.82 15.00 24.00 0.00 3031.00 31.00 30.00 ROUND 15.00 15.00 15.00 0.00 3132.00 32.00 31.00 ROUND 9.93 12.00 18.00 0.00 3233.00 33.00 32.00 ROUND 23.81 24.00 18.00 0.00 34.00 30.00 ROUND 15,00 15.00 15.00 0,00 '3034,00 3435.00 35.00 34.00 ROUND 10.57 12.00 15.00 0.00 3536.00 36.00 35.00 ROUND 12.66 15.00 15.00 0.00 3537.00 37.00 35.00 ROUND 9.77 12.00 15.00 0.00 3738.00 38.00 37.00 ROUND 12.66 15.00 15.00 0.00 3539:00 39.00 35.00 ROUND 5.96 12.00 15.00 0.00 3940.00 40.00 39.00 ROUND 12.66 15.00 15.00 0.00 'DIMENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES DIMENSION UNITS FOR BOX SEWER ARE IN FEET REQUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. SUGGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. FOR A NEW SEWER, FLOW WAS ANALYZED BY THE SUGGESTED SEWER SIZE; OTHERWISE, ' EXISITNG SIZE WAS USED ------------------------------------------------------------------------------- SEWER DESIGN FLOW NORMAL NORAML CRITIC CRITIC FULL FROUDE COMMENT ID FLOW 0 FULL 0 DEPTH VLCITY DEPTH VLCITY VLCITY NO. NUMBER CFS CIS FEET FPS FEET FPS FPS --- --- -'-- --- ---- ... -- 2930.0 12.0 43.6 0.72 11.83 1.24 5.86 3.82 2.87 V-OK 3031.0 7.0 12.0 1.25 5.70 1.05 10.87 5.70 0.00 V-OK '3132.0 7.0 34.3 .0.46 15.23 1.02 5.45 3.96 4.66 V-OK 3233.0 7.0 3.3 1.50 3.96 1.02 5.45 3.96 0.00 V-OK 3034.0 4.0 7.0 1.25 3.26 0.81 8.35 3.26 0.00 V-OK 3435.0 4.0 10.2 0.54 7.81 0.81 4.77 3.26 2.14 V-OK 3536.0 1.3 2.0 0.72 1.77 0.46 9.80 1.06 0.40 V-LOW 3537.0 1.3 4.1 0.48 2.96 0.46 3.19 1.06 0.87 V-OK 3738.0 1.3 2.0 0.72 1.77 0.46 3.19 1.06 0.40 V-LOW 3539.0 1.3 15.3 0.25 7.60 0.46 3.19 1.06 3.23 V-OK 3940.0 1.3 2.0 0.72 1.77 0.46 3.19 1.06 0.40 V-LOW IFROUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS ----- - SEWER ----- SLOPE .'--------------- INVERT ELEVATION ------ BURIED ----- DEPTH -------- COMMENTS ID NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM % (FT) (FT) IFT1 (FT) ---- ---- ... .... ---- ....._ 2930.00 3.69 5049.30 5044.69 8.50 2.31 OK 3031.00 -4.50 5046.39 5048.64 12.16 9.91 OK 3132.00 10.60 5052.89 5046.53 -1.50 11.77 NO 3233.00 0.10 5052.89 5052.89 -1.50 -1.50 NO 3034.00 -1.17 5047.69 5049.50 11.81 9.05 OK 3435.00 2.48 5052.32 5047.73 4.57 11.77 OK 3536.00 0.10 5052.32 5052.32 4.57 4.57 OK 3537.00 0.40 5051.61 5051.41 5.06 5.48 OK 3738.00 0.10 5051.61 5051.61 5.06 5.06 OK 3539.00 5.58 5053.99 5053.32 -1.25 3.57 NO 3940.00 0.10 5053.99 5053.99 -1.25 -1.25 NO IOK MEANS BURIED DEPTH IS GREATER THAN REQUIRED SOIL COVER OF 1 FEET 1 •" SUMMARY OF HYDRAULIC GRADIENT LINE ALONG SEWERS ------------------------------------------------------------------------------- SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW ID NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM DNSTREAM CONDITION FEET FEET FEET FEET FEET FEET ---------------------------------------------------------------------- 2930.00' 125.00 125.00 5051,30 5046.69 5052.85 5052.50 ------ PRSS'ED - NaFC: Pro�S�d PIPC OPC�Q CS I/1.A 3031.00 50.00 50.00 5047.64 5049.89 5053.35 5052.85 PRSS'ED 7reswred 51�U bon. f l p(pe 3132.00 60.00 53.26 5054.39 5048.03 5053.91 5053.35 JUMP jo,n45 m o5f ha✓e a 'prt', 'C 3233.00 1.00 0.00 5054.39 5054.39 5054.07 5053.91 PRSS'ED Seal ,,,hlcl�j� c,pl�e5 wlfh 3435.00 185.00 185.00 5053.57 5048.98 5054.30 5053.58 PRSS'ED 3536.00 1.00 1.00 5053.57 5053.57 5054.45 5054.30 PRSS'ED 3537.00 3738.00 50.00 1.00 50.00 1.00 5052.86 5052.86 5052.66 5052.86 5054.64 5054.64 5054.30 5054.64 PRSS'ED . PRSS'ED 3539.00 12.00 0.00 5055.24 5054.57 5054.45 5054.30 JUMP 3940.00 1.00 0.00 5055.24 5055.24 5054.55 5054.45 SUBCR PRSSIED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUBCR=SUBCRITICAL FLOW I** SUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS UPST MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE SEWER MANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY ID NO ID NO. ELEV FT FT K COEF LOSS FT K COEF LOSS FT ID FT ----------------------- ---------------- 2930.0 30.00 5053.08 0.35 1.00 0.23 0.00 0.00 29.00 5052.50 3031.0 31.00 1053.81 0.58 0.28 0.14 0.35 0.05 30.00 5013.08 3132.0 32.00 5054.16 0.24 0.28 0.07 0.00 0.00 31.00 5053.85 pie rand Q�'dl F.nt Qy UrOrJt�inC 3233.0 33.00 5054.321 0.10 0. �pndi{T0n ai-0;jp54,4A) 3034.0 34.00 5053.74 0.59 0.46 0.08 0.00 0.00 30.00 5053.08 3435.0 35.00 5054.46 0.71 0.08 0.01 0.00 0.00 34.00,5053.74 QA,n-rot No4e: ener flJ' D• • Eu54Snitr nlh}921 3536.0 36.00 5054.47 0.00 0.2 0.00 (�tio},fiend.A+ So53,40) b¢Ia.� r 3537.0 37.00 5054.65 0.02 1.00 0.02 0.50 0.16 35.00 5054.46Dr. rAq+fon pr/hOn[flj Raini�ttnv�C�r�ec • 3738.0 38.005054.66i o.z o. 3 0.00 3 .Wiot4 T.lef oo sos4.6s (9-.v-j tond.Q}Sioc3.49) ' 3539.0 39.00 5054.47 0.00 0.28 0.00 0.00 0.00 35.00 5054.46 ;�� ?0nd,% _ Q� iierQy 3940.0 i40.00- 5054.E 0.10 0.25 0.00 0.0o 0.0D 39.00 5054.47 nW�1�*' _'1 (> rSh^9 l� }lanai• 505�1,70� BEND LOSS =BEND K* FLOWING FULL VHEAD IN SEWER. LATERAL LOSS= OUTFLOW FULL VHEAD-JCT LOSS K*INFLOW FULL VHEAD FRICTION LOSS=O MEANS IT IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. FRICTION LOSS INCLUDES SEWER INVERT DROP AT MANHOLE NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FT WOULD BE INTRODUCED UNLESS LATERAL K=O. FRICTION LOSS WAS ESTIMATED BY BACKWATER CURVE COMPUTATIONS. *** SUMMARY OF EARTH EXCAVATION VOLUME FOR COST ESTIMATE. THE TRENCH SIDE SLOPE -----_---------------1 MANHOLE GROUND INVERT MANHOLE ID NUMBER ELEVATION ELEVATION HEIGHT '-----------------FTFT FT ------.---- 29.00 5049.00 5044.69 4.31 ' 30.00 5059.80 5048.64 11.16 31.00 5059.80 5046.39 13.41 32.00 5052.89 5052.89 0.00 33.00 5052.89 5052.89 0.00 34.00 5060.75 5047.69 13.06 35.00 5058.14 5051.41 6.73 36.00 5058.14 5052.32 5.82 37.00 5057.92 5051.61 6.31 38.00 5057.92 5051.61 6.31 39.00 5053.99 5053.99 0.00 1 40.00 5053.99 5053.99 0.00 ------------------------------------------------------------------------------- 1 ' SEWER UPST TRENCH WIDTH DNST TRENCH WIDTH TRENCH WALL EARTH ID NUMBER ON GROUND AT INVERT ON GROUND AT INVERT LENGTH THICKNESS VOLUME FT FT FTFT -- - -- INCHES CUBIC YD 2930.00 -------------FT 20.50 4.50 --- 8.13 4.50 125.00 3.00 330.9 3131.00 27.19 3.63 22.69 3,63 50.00 2.25 301.9 3132.00 0.08 3.92 26.62 3.92 60.00 2.50 213.7 3233.00 0.08 3.92 0.09 3.92 1.00 2.50 0.3 3034.00 26.50 3.63 20.97 3.63 155.00 2.25 855.0 3435.00 12.02 3.63 26.41 3.63 185.00 2.25 763.8 3536.00 12.02 3.63 12.02 3.63 1.00 2.25 1.6 3537.00 13.00 3.63 13.84 3.63 50.00 2.25 94.9 13.00 3.63 13.00 3.63 1.00 2.25 1.8 '3738.00 3539.00 0.38 3.63 10.01 3.63 12.00 2.25 8.3 3940.00 0.38 3.63 0.38 3.63 1.00 2.25 0.2 TOTAL EARTH VOLUME FOR SEWER TRENCHES = 2572.517 CUBIC YARDS SEWER FLOW LINE IS DETERMINED BY THE USER EARTH VOLUME WAS ESTIMATED TO HAVE BOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • 8 B=ONE FEET WHEN DIAMETER OR WIDTH <=48 INCHES B=TWO FEET WHEN DIAMETER OR WIDTH >48 INCHES IF BOTTOM WIDTH <MINIMUM WIDTH, 2 FT, THE MINIMUM WIDTH WAS USED. BACKFILL DEPTH UNDER SEWER WAS ASSUMED TO BE ONE FOOT 1 SEWER WALL THICKNESS=EOIVLNT DIAMATER IN INCH/12 +1 IN INCHES I [l 1 I No Text The Preserve - Exist. Stormsewer Anal.- MHC1 to Raintree COTSTI6 10-1-1993 L&A Inc. CLD File: PRE-10.DAT 1 , 12 , 20 , 2 , 2 , 1 , .85 500 500 , .2 ,H 1 100 1.4 28.5 10 .786 12 1 , 5045.5 , 0 , 1 , 130, 0 , 0 , 0 Lnho�e C"1 13.0,0, 6.1 .650,000,0 30, 5059.9 , 130,'2 ,3031,3034,0 0 p �xi5�„ L,/oiWe 13.0,0, 6.1,.65,0,0,000 J+� 31, 5059.1 ,3031, 1 ,3132, 0 0 0 I j�%I� L/� w n 6Ie 7.0 , 0 , 2.9 , .65 , 0 , 0 , 0 , 0 , 0 J I 32, 5052.89,3132, 1 ,3233, 0 , 0 , 0 EziS{�n�'Swk Pond k 6A-4 7.0 , 0., 2.9 , .65 , 0 , 0 0 0 , 0 l 33, 5052.89,3233, 0 , 0 , 0 , 0 , 0 ill{ tt65 7.0 , 0 , 2.9 , .65 , 0 , 0 , 0 0 0 ,34, 5060.6 ,3034, 1 ,3435, 0 , 0 , 0 cmt,hfu ManAole 5.0, 0, 3.2, .65, 0, 0, 000 T] 35, 5058.14,3435, 3 ,3536,3537,3539,0 I 0,Or p lk!_ree Dr, �4-rok. hit T 5.0,0, 3.2,'.61 0 0,0 l 36, 5058.14,3536, 0 , 0 0 0 , 0 1.7 , 0, 3.2 , .65 0 0 0 0, 37, 5057.92,3537, 1 ,3738, 0 , 0 0 1.7 , 0 , 3.2 , .65 0 0 0 0 Or �X�STIh 38, 5057.92,3738, 0, 0 0 0 0 I 1.7 , 0, 3.2 , .65 0 0 0 0 Or J 1053,99,3139, 1 ,3940, 0 , 0 , 0 FZi5Ln9 "�v�5e�bnd Do�lc� I� '39, 1.7, 0, 3.2, .65 0 0 0 0 0 40, 5053.99,3940, 0 , 0 , 0 1.7 , 0 , 3.2 , .65 0 0 0 0', Or The rc uDSe�e� z"np�f. 11 130 , 248 , 3.63, 5050.32 , .013 , 1 , 0 , 1 , 15 , 0 — EXI5{)n� pipe -Coln MN C-9.44, 9XI'An9 n4ak 3031, 71 , 1.08, 5051.62 , .013 ,0.28 , 0.35 , 1 , 15 , 0— EX15{1A 5}0rm5ewer "5"le?b ' Awe+ ' 3132, 32 , 1.44, 5054.39 , .013 ,0.28 , 0 , 1 , 18 , 0 — £Xt jfIii9j 5ioron5ewer-{o 3233, 1 , 0.10, 5054.39 , .013 ,0.25 , 0 , 1 , 18 , 0 — ? Zn14f L tp 3034, 172 , 0.97, 5051.50 , .013 ,0.46 , 0 , 1 , 15 , 0 — 9lfvre»el+Pr `>farMS[�r �'ni(IC� Ea4fTn�e{ ' 3435, 3536, 185 , .005, 5053,17 , .013 ,0.08 , 0 1 0.10, 5053.57 , .013 ,0.25 , 0 , 1 , 15 , 0— , 1 , 15 , 0— EX1�{1n h� 1_OrCae�� , 0.50 1 15 0 ��reeDr,W���,�[f 3537, 50 , 0.40, 5052.86 , .013 ,1.00 , , , , — 3738, 1 , 0.10, 5052.86 , .013 ,0.25 , 0 , 1 , 15 , 0 — 4- ZA .Lo59 larmSCller '3539, 12 , 5.58, 5055.24 , .013 ,0.28 , 0 , 1 , 15 , 0— c>JS{1 S 3940, 1 , 0.10, 5055.24 , .013 ,0.25 , 0 , 1 , 15 , 0— ,e Lnk G0s3 1 I I I ' REPORT OF STORM SEWER SYSTEM DESIGN USING UDSEWER-MODEL 2-10-1993 DEVELOPED BY ' JAMES C.Y. GUO ,PHD, PE DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER IN COOPERATION WITH URBAN DRAINAGE AND FLOOD CONTROL DISTRICT DENVER, COLORADO •** EXECUTED BY LiDSTONE AND ANDERSON................................................... ' ON DATA 10-28-1993 AT TIME 17:17:19 *** PROJECT TITLE 1 1 The Preserve - Exist. Stormsewer Anal.- MHC1 to Raintree I* RETURN PERIOD OF FLOOD IS 100 YEARS IRAINFALL INTENSITY FORMULA IS GIVEN ** SUMMARY OF SUBBASIN RUNOFF PREDICTIONS TIME OF CONCENTRATION MANHOLE ASIN OVERLAND GUTTER BASIN RAIN T AK FLOW ID NUMBER ARE * C To (MIN) Tf (MIN) Tc (MIN) INC CFS 1 ... - - --- 1.00 3.96 .00 0.00 0�-Z4.75 18.83 30.00 3.96 0. 0.00 /0.00 4.75 18.83 31.00 1.88 0.00 0.00 0.00 4.75 8.95 32.00 1.88 0.00 0 0.00 4.75 8.95 33.00 1.88 0.00 0.0 10.51 3.71 7.00 ' 34.00 35.>;, 2.08 8 0. .00 0.00 0.00 .DO 0. 4.75 4.75 9.88 9.88 36.8 0.00 0.00 130.71 0.82 1.70 37.8 38.8 0,00 0.00 0.00 0.00 0.00 130.71 0.82 9.88 1.70 ion n_nn n_nn 0.00 4.75 88 HE SHORTEST DESIGN RAINFALL DURATION IS FIVE MINUTES ,70 f 0.0� 7hei�xr✓e 5Xm5 vJ(7 if <i�515 �IS`�1G(0f�°7 IY1QU'iQSe,veil ocio-) t 'DENVER REGIONAL DRAINAGE CRITERIA WAS NOT USED TO CHECK THE COMPUTATION OF TIME OF CONCENTRATION *** SUMMARY OF HYDRAULICS AT MANHOLES ' l� �I�yhfS foexr5 �y �n pipe------------------------------------------------------- �perrtve/fj c�i✓en g5�faveletton. MANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GROUND WATER COMMENTS ' ID NUMBER AREA * C - 1.00 0.00 DURATION INTENSITY MINUTES- 0.00 PEAK FLOW INCH/HR CFS ---------- 0.00 13.00 LEVATION ELEVATION FEET FEET --------------------- 5045.50 5041.29 OK b C✓Ifi aldePfll ' 30.00 0.00 132.24 0.00 13.00 5059.90 5051.85 OK ' 32.00 33.00 0.00 1.B8 10.51 10.51 0.00 3.71 7.00 7.00 055.62 5056.09 OK NO rStNQIC���I l�Ie� 5052.89 5052.89 5056.16 34.00 35.00 0.00 0.00 131.74 130.98 0.00 0.00 5.00 5.00 5060.60 50 88.14 5054.48 505� 5.60 OK T �Gr'���e OK 36.00 2.08 130.71 0.82 1.70 5058.14 5055.84 OK l?u Dewe 37.00 0.00 130.72 0.00 1.70 5057.92 5056.13 OK mlwe 38.00 39.00 2.08 0.00 130.71 130.72 0.82 0.00 1.70 1.70 5057.92 5056.14 OK 110, I�Uke?bnr7`OJfIof NO 5053.99 5055.84 ' 40.00 2.08 130.71 0.82 1.70 15053.991 5055.85 NO OK MEANS WATER ELEVATION IS LOWER THAN GROUND ELEVATION 1 *** SUMMARY OF SEWER HYDRAULICS ' NOTE: THE GIVEN FLOW DEPTH -TO -SEWER SIZE RATIO= .85 ------- ------ SEWER -- - MAMHOLE •----------•------------------------------------------ NUMBER SEWER REQUIRED SUGGESTED EXISTING ID NUMBER UPSTREAM DNSTREAM SHAPE DIA(HIGH) DIA(HIGH) DIA(HIGH) WIDTH ID NO. ID NO. (IN) (FT) (IN) (FT) (IN) (FT) (FT) ' -- - 130.00 30.00 1.00 ROUND 15.31 18.00 15.00 0.00 3031.00 31.00 30.00 ROUND 15.24 18.00 15.00 0.00 ' 3132.00 32.00 31.00 ROUND 14.44 15.00 18.00 0.00 3233.00 33.00 32.00 ROUND 23.81 24.00 18.00 0.00 3034.00 34.00 30.00 ROUND 13.71 15.00 15.00 0.00 3435.00 35.00 34.00 ROUND 36.80 42.00 15.00 0.00 ' 3536.00 36.00 35.00 ROUND 14.00 15.00 15.00 0.00 3537.00 37.00 35.00 ROUND 10.80 12.00 15.00 0.00 3738.00 38.00 37.00 ROUND 14.00 15.00 15,00 0.00 ' 3539.00 39.00 35.00 ROUND 6.59 12.00 15.00 0.00 3940.00 40.00 39.00 ROUND 14.00 15.00 15.00 0.00 ' DIMENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES DIMENSION UNITS FOR BOX SEWER ARE IN FEET 'REQUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. SUGGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. FOR A NEW SEWER, FLOW WAS ANALYZED BY THE SUGGESTED SEWER SIZE; OTHERWISE, EXISTTNG SIZE WAS USED ------------------------------------------------------------------------------- 1 'SEWER DESIGN FLOW NORMAL NORAAL CRITIC CRITIC FULL FROUDE COMMENT ID FLOW 0 FULL 0 DEPTH VLCITY DEPTH VLCITY VLCITY NO. NUMBER CFS CFS FEET FPS FEET FPS FPS ---------------------------------------------------------------------------- 130.0 13.0 12.3 1.25 10.59 1.21 10.71 10.59 0.00 V-OK 3031.0 7.0 6.7 1.25 5.70 1.05 11.78 5.70 0.00 V-OK '3132.0 7.0 12.6 0.80 7.34 1.02 5.45 3.96 1.62 V-OK 3233.0 7.0 3.3 1.50 3.96 1.02 5.45 3.96 0.00 V-OK 3034.0 5.0 6.4 0.83 5.75 0.89 7.53 4.07 1.18 V-OK 5.0 0.5 1.25 4.07 0.89 5.38 4.07 0.00 V-OK '3435.0 3536.0 1.7 2.0 0.87 1.87 0.53 10.15 1.39 0.37 V-LOW 3537.0 1.7 4.1 0.56 3.18 0.53 3.45 1.39 0.86 V-OK 3738.0 1.7 2.0 0.87 1.87 0.53 3.45 1.39 0.37 V-LOW ' 3539.0 1.7 15.3 0.28 8.22 0.53 3.45 1.39 3.25 V-OK 3940.0 1.7 2.0 0.87 1.87 0.53 3.45 1.39 0.37 V-LOW IOUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS ------------------------------------------------------------- SEWER SLOPE INVERT ELEVATION BURIED DEPTH COMMENTS ID NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM '--------- % (FT) ------------------------------------------------- (FT) (FT) (FT) 130.00 3.63 5049.07 5040.07 9.58 4.18 OK 3031.00 1.08 5050.37 5049.60 7.48 9.05 OK '3132.00 1.44 5052.89 5052.43 -1.50 5.17 NO 3233.00 0.10 5052.89 5052.89 -1.50 -1.50 NO 3034.00 0.97 5050.25 5048.58 9.10 10.07 OK 0.00 5052.32 5052.31 4.57 7.04 OK '3435.00 3536.00 0.10 5052.32 5052.32 4.57 4.57 OK 3537.00 0.40 5051.61 5051.41 5.06 5.48 OK 0.10 5051,61 5051.61 5.06 5.06 OK '3738.00 3539.00 5.58 5053.99 5053.32 -1.25 3.57 NO 3940.00 0.10 5053.99 5053.99 -1.25 -1.25 NO IMEANS BURIED DEPTH IS GREATER THAN REQUIRED SOIL COVER OF 1 FEET '•• SUMMARY OF HYDRAULIC GRADIENT LINE ALONG SEWERS ------------------------------------------------------------------------------ SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW ID NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM DNSTREAM CONDITION FEET FEET FEET FEET FEET FEET ------------------------------------------------------------------------------- 130.00 248.00 0.00 5050.32 5041.32 5051.85 5D41.29 PRSS'ED 3031.00 71.00 71.00 5051.62 5050.85 5055.62 5051.85 PRSS'ED 3132.00 32.60 32.00 5054.39 5053.93 5056.09 . 5055.62 PRSS'ED 3233.00 1.00 1.00 5054.39 5054.39 5056.16 5056.09 PRSS'ED '3034.00 172.00 172.00 5051.50 5049.83 5054.48 5051.85 PRSS'ED 3435.00 185.00 185.00 5053.57 5053.56 5055.60 5054.48 PRSS'ED 3536.00 1.00 1.00 5053.57 5053.57 5055.84 5055.60 PRSS'ED 50.00 50.00 5052.86 5052.66 5056.13 5055.60 PRSS'ED '3537.00 3738.00 1.00 1.00 5052.86 5052.86 5056.14 5056.13 PRSS'ED 3539.00 12.00, 12.00 5055.24 5054.57 5055.84 5055.60 PRSS'ED 3940.00 1.00 1.00 5055,24 5015,24 5055.85 5055.84 PRSS'ED ' PRSS'ED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUBCR=SUBCRITICAL FLOW t*** SUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS -------------------------------- UPST MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE ' --SEWER-MANHOLE- EWERMANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY ID NO ID NO. ELEV FT FT K COEF LOSS FT K COEF LOSS FT ID FT 130.0 30.00 5053.59 10.56 1.00 1.74 0.00 0.00 1.00 5041.29 3031.0 31.00 5056.13 0.83 0.28 0.14 0.35 1.57 30.00 5053.59 '3132.0 32.00 5056.34 0.14 0.28 0.07 0.00 0.00 31.00 5056.13 3233.0 33.00 5056.40 0.00 0.25 0.06 0.00 0.00 32.00 5056.34 3034.0 34.00 5054.73 1.02 0.46 0.12 0.00 0.00 30.00 5053.59 3435.0 35.00 1055.86 1.10 0.08 0.02 0.00 0.00 34.00 5054.73 '3536.0 36.00 5 555.87 0.00 0.25 0.01 0.00 0.00 35.00 5055.86 3537.0 .37.00 5056.16 0.03 1.00 0.03 0.50 0.24 35.00'5055.86 3738.0 38.00 5056.17 0.00 0.25 0.01 0.00 0.00 37.00 5056.16 3539.0 39.00 5055.87 0.01 0.28 0.01 0.00 0.00 35.00 5055.86 3940.0 40.00 5055.88 0.00 0.25 0.01 0.00 0.00 39.00 5055.87 'BEND LOSS =BEND K* FLOWING FULL VHEAD IN SEWER. LATERAL LOSS=.OUTFLOW FULL VHEAD-JCT LOSS K*INFLOW FULL VHEAD FRICTION LOSS=O MEANS IT IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. ' FRICTION LOSS INCLUDES SEWER INVERT DROP AT MANHOLE NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FT WOULD BE INTRODUCED UNLESS LATERAL K=O. FRICTION LOSS WAS ESTIMATED BY BACKWATER -CURVE COMPUTATIONS. 1 ' *** SUMMARY OF EARTH EXCAVATION VOLUME FOR COST ESTIMATE. TRENCH = 1 'THE -SIDE -SLOPE MANHOLE GROUND INVERT MANHOLE ID NUMBER ELEVATION ELEVATION HEIGHT FT • - 1.00 --_FT----------------•-FT 5045.50 5040.07 5.43 30.00 5059.90 5048.58 11.32 ' 31.00 5059.10 5050.37 8.73 32.00 5052.89 5052.89 0.00 33.00 5052.89 5052.89 0.00 ' 34.00 5060.60 5050.25 10.35 35.00 5058.14 5051.41 6.73 36.00 5058.14 5052.32 5.82 37.00 5057.92 5051.61 6.31 ' 38.00 5057.92 5051.61 6.31 39.00 5053.99 5053.99 0.00 40.00 5053,99 5013,99 0.00 .1le?ad"Mk+F,4wjy &oJeL„e Qa�nf�eC�nde ta5��lcf �hr�y�C�a�eL„� I 1 v, iv¢ 'deotjT4I�r�Hv% i7�cli?(�r "F��Se�ond" a,,tl of �r�ery� lrn ' SEWER UPST TRENCH WIDTH DNST TRENCH WIDTH TRENCH WALL EARTH ID NUMBER ON GROUND AT INVERT ON GROUND AT INVERT LENGTH THICKNESS VOLUME FT FT FT FT FT INCHES CUBIC ID -- 130.00 22.04 3.63 11.24 3.63 248.00 2.25 759.8 3031.00 17.83 3.63 20.97 3.63 71.00 2.25 265.5 '3132.00 0.08 3.92 13.43 3.92 32.00 2.50 35.7 3233.00 0.08 3.92 0.09 3.92 1.00 2.50 0.3 3034.00 21.08 3.63 23.01 3.63 172.00 2.25 815.0 12.02 3.63 16.95 3.63 185.00 2.25 412.5 '3435.00 3536.00 12.02 3.63 12.02 3.63 1.00 2.25 1.6 3537.00 13.00 3.63 13.84 3.63 50.00 2.25 94.9 3738.00 13,00 3.63 13.00 3.63 1.00 2,25 1.8 3539.00 0.38 3.63 10.01 3.63 12.00 2.25 8.3 3940.00 0.38 3.63 0.38 3.63 1.00 2.25 0.2 ITAL EARTH VOLUME FOR SEWER TRENCHES = 2395.665 CUBIC YARDS SEWER FLOW LINE IS DETERMINED BY THE USER 'ARTH VOLUME WAS ESTIMATED TO HAVE BOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • B B=ONE FEET WHEN DIAMETER OR WIDTH 4=48 INCHES B=TWO FEET WHEN DIAMETER OR WIDTH >48 INCHES IF BOTTOM WIDTH <MINIMUM WIDTH, 2 IT, THE MINIMUM WIDTH WAS USED. 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L t t .I i i , I" I , � • ; f 1 r 'a i " , r .lr t - t " t "P i.. i 't i t' 1. A) + s a >, d a X e R. ati -f f k { >. - 1 t. r 1I y - ;7 3 a 1^i Vt' �.t " r. ♦ 4j t •r , s 't , ° 1 Manhole 3 ;AjB to Inlet #6 1 Y ; . ' t h" i �'• �'., ry "r .tom t r' i.{; Y .% • } • 4 f` , t +. 1ri, , •r \+ "t a, t' 6 1T •. r r t i s "' t j L e{. J 1 y 1 z r kr r '•d .. a y 3 ' S Z at > r } 'i r irt- Y 4 F \ tN _ t! i `i ,.- t5 5 4. 1 •, + •r r t\ ?, \ y 1 `,• ix. a ;..r. K t a,� • ii / ,r Yv :I t i " " ..i I . ,1N i •i: .. j t. 1 ;, ;. y `, ;, J t '' ,l I 1 Z I a r t.11 +I + r tit t r 1 ✓'r' i 6 -1 J , .- p. ' .. Iy ,.Y ". r.i .( t ` I 1 -a (.-f. 1.. .. t r t r r - r i '" r r I n. .t 1 I,) '.1 t " •i . r r 1 I i r M1..\, , ,•f r ♦ t ,i, -♦ t ,- 4 SS v t t ? S Fy 4 2 " ' MCI-3-A-1-3 4o hlit b ------------------------------------------------------------------------ - ' REPORT OF STORM SEWER SYSTEM DESIGN USING UDSEWER-MODEL 2-10-1993 DEVELOPED BY ' JAMES C.Y. GUO ,PHD, PE DEPARTMENT OF CIVIL ENGINEERING, UNIVERSITY OF COLORADO AT DENVER IN COOPERATION WITH URBAN DRAINAGE AND FLOOD CONTROL DISTRICT ' DENVER, COLORADO *** EXECUTED BY LIDSTONE AND ANDERSON................................................... ON DATA 11-09-1993 AT TIME 73:10:11 '** PROJECT TITLE ' The Preserve - Stormsewer Analysis - Basin 3 to Inlet 6 I** RETURN PERIOD OF FLOOD IS 100 YEARS RAINFALL INTENSITY FORMULA IS GIVEN '** SUMMARY OF SUBBASIN RUNOFF PREDICTIONS -----------------------------------'..---------..'.'. TIME OF CONCENTRATION MANHOLE N OVERLAND GUTTER BASIN 1 PEAK FLOW IY9.00 INCH/HR CFS ----' -------------- .00 4.75 15.74 fl4.220.00 ffio.001 .00 4.75 15.74 -00 4.75 15.74 .00 4.75 15.74 0.00 4. 20.06 7.67 2.93 240 SHORTEST DESIGN RAINFALLDURATION IS FIVE MINUTES `ENVER REGIONAL DRAINAGE CRITERIA.WAS NOT USED TO CHECK THE COMPUTATION OF TIME OF CONCENTRATION -PR6-7,pvT The PreSer✓e 5 fl�rn7Wer #ltii U D5ede� Thpaf, lle51ly► lr0w5art inP�-us c�,dr„'�{joy. ** SUMMARY OF HYDRAULICS AT MANHOLES MCI 5P-ii3i4o Preserve'- Stormseuer Analysis - Basin 3 to Inlet 6 :OTST16 11-9-1993 L&A Inc CLD File: PRE-7.DAT 15 , 20 2 , 2 , 1 , .85 , 500 , 500 , .2 ,N 100 .4 , 28.5 10 .786 6 5045.5 , 0 , 1 ,2425, 0 , 0 , 0 Monl vle 3"�I-13 . 0, 0, 5.1 .6 5, 0 0 0 0 0 I 25, 5047.0 ,2425, 1 ,2526, 0, 0, 0 L 0, 0, 5.1 ,. 6 5, 0, 0, o, 0, 0 1 Mn vil j i e 5049.7 ,2526, 1 ,2627, 0 , 0 0f� ^ 35.0 , 0, 5.1 ,. 6 5, 0, 0, 0, 0, p I M a;: 7, 5050.0 ,2627, 1 ,2728, 0, 0, 0 N�iPholQ 3-A a 6 , 0 , 5.1, .65,0,0,0,0,01 B, 5051.0 , 2728, 1 , 2829, 0 , 0 , 0 rlie y 12.4,0, 6.5, .65,0, 0,0 00 5051.0 ,2829, 0, 0, 0, 0, 0 2.4 , 0 , 6.5 , .65 , 0 , 0 , 0 , 0 , 0 ZhICns5 4 J Y1 5 1425 , 230 ,0.68, 5044.56 , .011 , 1 , 0 , 1 , 30 0—Pipe�iom MF� 3"A "1D 4o MN 3M-d-k 526 , 246 ,0.68, 5046.43 , .011 , .08 , 0 , 1 , 30 , 0 — ipe t.,IY{ 54-1 k4o MA 3-A -1 2627 , 413 ,0.68, 5049.44 , .011 , .08 , 0 , 1 , 30 , 0 — ?'pe4,&m MA 3-j+-1.4U MF4"3'w.a �728 , 97 ,1.36, 5049.94 , .011 1 , 0 1 18 , 0 — Dip[ji,, Mg 3'p'94o rik4-(o 829 1 ,0.1 , 5049.94 .011 0.25, 0 1 18 , 0 — 1nk�Lors 4� I�LGe� % [1 I 1 -Dftr I he�reSP/vE siz�rm5�ae, {}�1a�y�I� d ----------------------------------------------------------------------------- iMANHOLE CNTRBTING RAINFALL RAINFALL DESIGN GRDUND WATER COMMENTS D NUMBER AREA • C DURATION INTENSITY PEAK FLOW ELEVATION ELEVATION MINUTES INCH/HR CFS FEET FEET 24.00 0.00 0.00 0.00 35.00 5045.50 5042.51 OK 25.00 0.00 19.10 0.00 35.00 5047.00 5044.07 OK 26.00 0.00 18.65 0.00 35.00 5049.70 5045.94 OK 27.00 0.00 17.84 0.00 23.60 5050.00 5048.59 OK 28.00 0.00 17.67 0.00 12.40 5051.00 5049.75 OK 29.00 4.22 17.67 2.93 12.40 5051.00 5049.96 OK MEANS WATER ELEVATION IS LOWER THAN GROUND ELEVATION ` * SUMMARY OF SEWER HYDRAULICS ' NOTE: THE GIVEN FLOW DEPTH -TO -SEWER SIZE RATIO= .85 ---------------------•------------.----••-------------.-•-----------------.--- SEWER MANHOLE NUMBER SEWER REQUIRED SUGGESTED EXISTING �D NUMBER UPSTREAM DNSTREAM SHAPE DIA(HIGH) D1A(HIGH) DIACHIGH) WIDTH ID NO. ID NO. (IN) (FT) (IN) (FT) (IN) (FT) (FT) 2425.00 25.00 24.00 ROUND 28.55 30.00 30.00 0.00 2526.00 26.00 25.00 ROUND 28.55 30.00 30.00 0.00 2627.00 27.00 26.00 ROUND 24.62 27.00 30.00 0.00 2728.00 28.00 27.00 ROUND 16.99 18.00 18.00 0.00 2829.00 29.00 28.00 RAND 27.71 30.00 18.00 0.00 �MENSION UNITS FOR ROUND AND ARCH SEWER ARE IN INCHES MENSION UNITS FOR BOX SEWER ARE IN FEET REQUIRED DIAMETER WAS DETERMINED BY SEWER HYDRAULIC CAPACITY. GGESTED DIAMETER WAS DETERMINED BY COMMERCIALLY AVAILABLE SIZE. R A NEW SEWER, FLOW WAS ANALYZED BY THE SUGGESTED SEWER SIZE; OTHERWISE, EXISITNG SIZE WAS USED Ll SEWER DESIGN FLOW NORMAL NORAML CRITIC CRITIC FULL FROUDE COMMENT ID FLOW Q FULL 0 DEPTH VLCITY DEPTH VLCITY VLCITY NO. NUMBER CFS CFS FEET FPS FEET FPS FPS ------------------------------------------------------------------------------ 2425.0 35.0 40.1 1.81 9.20 2.01 8.29 7.13 1.24 V-OK 2526.0 35.0 40.1 1.81 9.20 2.01 8.29 7.13 1.24 V-OK 2627.0 23.6 40.1 1.38 8.50 1.65 10.18 4.81 1.42.V-OK 2728.0 12.4 14.5 1.07 9.23 1.31 14.37 7.02 1.64 V-OK 2829.0 12.4 3.9 1.50 7.02 1.31 7.55 7.02 0.00 V-OK FROUDE NUMBER=O INDICATES THAT A PRESSURED FLOW OCCURS ---------------------------------------------------------------------- �SEWER SLOPE INVERT ELEVATION BURIED DEPTH COMMENTS D NUMBER UPSTREAM DNSTREAM UPSTREAM DNSTREAM % (FT) (FT) (FT) (FT) -------------------------------- --- --- 5-6,4+� wa4rrsv(f ,(e cleva�hvn de4e�r�111ed hycrincalJ<&- 4jj(ool(cC(4�cVilc - No4e: W6. ElellAc)n 15 be'o"'9rooncl 0,1MhDrl q%aI I N70"h0165. ' 2425.00 0.68 5042.06 5040.50 2.44 2.50 OK 2526.00 0.68 5043.93 5042.26 3.27 2.24 OK 2627,00 0.68 5046.94 5044.13 0.56 3.07 NO '2728.00 1.36 5048.44 5047.12 1.06 1.38 OK 2829.00 0.10 5048.44 5048.44 1.06 1.06 OK IMEANS 'BURIED DEPTH 1S GREATER THAN REQUIRED SOIL COVER OF 1 FEET I *** SUMMARY OF HYDRAULIC GRADIENT LINE ALONG SEWERS I----------------------------------------------------------------------------- SEWER SEWER SURCHARGED CROWN ELEVATION WATER ELEVATION FLOW �D NUMBER LENGTH LENGTH UPSTREAM DNSTREAM UPSTREAM DNSTREAM CONDITION FEET FEET FEET FEET FEET FEET ------------------------------------------------------------------------------- 2425.00 230.00 0.00 5044.56 5043.00 5044.07 5042.51 JUMP 2526.00 246.00 0.00 5046.43 5044.76 5045.94 5044.07 JUMP 2627.00 413.00 0.00 5049.44 5046.63 5048.59 5045.94 JUMP 2728.00 97.00 24.16 5049.94 5048.62 5049:75 5048.59 JUMP 2829.00 1.00 1.00 5049.94 5049.94 5049.96 5049.75 PRSSIED PRSSIED=PRESSURED FLOW; JUMP=POSSIBLE HYDRAULIC JUMP; SUBCR=SUBCRITICAL FLOW I FSUMMARY OF ENERGY GRADIENT LINE ALONG SEWERS ------------------------------------------------------------------- UPST MANHOLE SEWER JUNCTURE LOSSES DOWNST MANHOLE SEWER MANHOLE ENERGY FRCTION BEND BEND LATERAL LATERAL MANHOLE ENERGY ID NO ID NO. ELEV FT FT K COEF LOSS FT .K COEF LOSS FT ID FT ----------------------------------------------------------------------------- 2425.0 25.00 5044.86 1.56 1.00 0.79 0.00 0.00 24.00 5042.51 526.0 26.00 5046.73 1.81 0.08 0.06 0.00 0.00 25.00 5044.86 627.0 27.00 5048.95 2.19 0.08 0.03 0.00 0.00 26.00 5046.73 728.0 28.00 5050.52 0.81 1.00 0.76 0.00 0.00 27.00 5048.95 2829.0 29.00 5050.72 0.01 0.25 0.19 0.00 0.00 28.00 5050.52 t;f1f�� 6(oord'v'ff 4` 15 beK7� I„Ielelfho'� (��SI-ov� BEND LOSS =BEND K* FLOWING FULL VHEAD 1N SEWER. LATERAL LOSS= OUTFLOW FULL VHEAD-JCT LOSS K*INFLOW FULL VHEAD FRICTION LOSS=O MEANS 1T IS NEGLIGIBLE OR POSSIBLE ERROR DUE TO JUMP. FRICTION LOSS INCLUDES SEWER INVERT DROP AT MANHOLE NOTICE: VHEAD DENOTES THE VELOCITY HEAD OF FULL FLOW CONDITION. A MINIMUM JUCTION LOSS OF 0.05 FRICTION LOSS WAS ESTIMATED BY FT WOULD BE INTRODUCED UNLESS BACKWATER CURVE COMPUTATIONS. LATERAL K=O. *** SUMMARY OF EARTH EXCAVATION VOLUME FOR COST ESTIMATE. ' THE TRENCH SIDE SLOPE = 1 ------------------------------------------------------------------------------- MANHOLE GROUND INVERT MANHOLE ID NUMBER ELEVATION ELEVATION HEIGHT FT FT FT ..... 24.00 ...................................' 5045.50 5040.50 5.00 25.00 5047.00 5042.06 4.94 26.00 5049.70 5043.93 5.77 '27.00 5050.00 5046.94 3.06 28.00 5051.00 5048.44 2.56 29.00 5051.00 5048.44 2.56 ISEWER D NUMBER UPST TRENCH WIDTH ON GROUND AT INVERT DNST TRENCH ON GROUND AT WIDTH INVERT TRENCH LENGTH WALL THICKNESS EARTH VOLUME FT FT FT FT FT INCHES CUBIC YD --_-_..'-•--------------------------------------------------------------------- 2425.00 8.80 5.08 8.92 5.08 230.00 3.50 289.0 2526.00 10.46 5.08 8.40 5.08 246.00 3.50 335.2 2627.00 5.04 5.08 10.05 5.08 413.00 3.50 460.5 5.20 3.92 5.84 3.92 97.00 2.50 54.7 '2728.00 2329.00 5.20 3.92 5.21 3.92 1.00 2.50 0.5 TAL EARTH VOLUME FOR SEWER TRENCHES = 1139.944 CUBIC YARDS WER FLOW LINE IS DETERMINED BY THE USER �RTH VOLUME WAS ESTIMATED TO HAVE BOTTOM WIDTH=DIAMETER OR WIDTH OF SEWER + 2 • B B=ONE FEET WHEN DIAMETER OR WIDTH <=48 INCHES B=TWO FEET WHEN DIAMETER OR WIDTH >48 INCHES 1F BOTTOM WIDTH <MINIMUM WIDTH, 2 FT, THE MINIMUM WIDTH WAS USED. BACKFILL DEPTH UNDER SEWER WAS ASSUMED TO BE ONE FOOT ' SEWER WALL THICKNESS=EOIVLNT DIAMATER 1N INCH/12 +1 IN INCHES 11 I 11 _ z r w r y t f , - r Y x>•a yr i I q t I r A t o f .' r i.( I3 �' 1 1, t F e'`I I' l Al �i, f ^% '] 4 , . i Z J ' s \ V. -.f :. ` f . y^ 7 s \' Y Y a a . 1 3. S 'h r , - r 1 Il ,' h Is , , 1 k M1 l . "! y r "7'; t 1 l J t 1 ..? 3 L 1 ] ; 3 L J 3.. t t.. ,-e t r 4 a- .4 1 t t II 1Z. i 1.! _ r + } • ' .. _ t s t Y I ' I 4I. t .1 Ir . \ It' ry Z .1 r. . I. •' } �. - Y < .~ '' N Y ti 1 } 1.L t t ,:. ♦n i t t - i .'r a f ' a 1 I i t, II u 1 I• Y t ht , I q I r x t v I t >. I. ",I t } 3 4 It .r t. l 4. ,�{ J r �;. i t t J t\ t. Y t + ♦ a _Y + t tt ' rr t I r Y + I I J a t i , t ,i. ♦� �.1' Y .. T.C' , , Y • I .t 1 } - r - , t t P tto ..S . .fi t o '\ > t a .' ` ` t f 1 1 4 1 J t f ' T . L r: tY t Y.y�.h J ,1 ` I ..I J t r I F'l M1 t f 1 1 t y t I) t 1 ., . t I. 1 r r c t. I n i a L 4 ..1 y t Y ' - >< t•.: ` ` APPENDIX D. t A z 4 x "? f + ' \ rt J -I �I '. 7 t l 4 ! Hydrologic Tables' 4 ,\ J Y n ; L Pt c < ' I 'a4 f 1 a .'$ ! . y f 1 L.LP Jv. r ..TI l., 1I a �f \ y,. 1 l 1; l - .J .t t ' 't J. s. , Y �; ' ^' l J I J lJ L + �' , I ` j J t I,.. i t r' f i � '_ .�I Ta l_ , ♦ .4 f / t ♦ C f 1 J 3 t -'1 _ `Y 3 1T. \ l 1 t t' L f , 1 11 3 i a LI ':s 1 ',, �t S. YS F' r �]' L i t I v t t ,.,I na t.-1 t Y t L t., t f. ], rt t 0 .I V ,, ry -' Y r_ r ,J 4 \ 3 1• t ] .i I \ 4 a , v T i i Y. \ + r f ! I 1 I 2 si t l , . I e.l- h ,`j _ 1 W' t % ,1 _ ., - 1, 1 1 t a •1 1 1 S a 11C r . YI ).l. 1 �Lr r ' �� _ .e , , ry C / 1 _ 1 t v I' i a t J i S r.� .. f . - , I I 1 I I I I [1 I h %n 0% n CT N 00 00 � O !� v1 N 00 + Y1 N %0 00 t. 0% b N 00 ..a . 00 fV N N N aa C W "N11; ..rrz M � v U v N Ni co r+ a 0. N L �1 in0000 0000 N coo M M n.� O N N M N M N M N M N M N M N M P1 M M M M ►r � N G N O ^ o cq a O O FE'"o E V aOS� p p� as NMS Z N 4 "" ^ n a pE"e� E A ^ U yp U t� a 0 V A N N N N m M ai tary oa a Q N N M a 14 a7 d¥-- d-T- =d dB_ °a � sake EaQ a2 0Nnen dww § & §�/� . w %q on22 oaS as -co n8aa e88 a8 7 �ddd red dd a�\\ � k 2 a888 q8a 88 wddd. t-:§§ dd 0 B k�u/ <=i ��----m cqeqcq7 n< < §- Ell ■ q 8888 888 88 Lsi -000 NOO OO < o g 0 0 0 coo cc C W o a .-. O O O r ^+ 0 8 8 `! N O < I� N O O— O v � U — < �oNvr°i %i�°aakoe�n n a �8 C h- N O O v -CON ONO v N U ��GJd 88$88 8888 888 GZs1U� U F� d Lti N O U 0 C 0 O 0 O 0 o 0 0 0 o 0 C 0 O 0 G 0 C 0 O 0 0 0 o 0 C U ZW W U ao u h $ o � � h v rnNv �� 6 N N O O — O — P1 A z <m U in v <a1 U N m <car m N N N N t+f Pf < m < < N Z - N 11 C N H + .. `.' x, ._', 'I'. 1 d: ,•; ..',I t 1J .a ( ✓' 1IN r,, r 1 r. 'f tr ". 4,- 4 L'4 x- 4 ) ) r r .a4 h _. r r 1 . a F y i ♦� �, t a ''� Y r.i t f Y c., , v 14 > 1. f - 4 t [ ; ! r ♦ , t r 13. r .A .4 .ti 7 c t .'K I t x Eq. 7 •% __ r r 3 I P +, ti + tip" j r - ra r , , r, r r. .a t r, _ ] �, d \ + I • 1 ., " 1 , :. ., 1 4.3 ,. 5 I S r. i `. f I +' > , r4 \ , 1 ♦ • r '` ' t`• t F 1 i 1 Y r , .} y f !t "t v,y i 4 ♦. L , ! r r 71 vM , a Y 5, t •. - r r r -, u a I } _ ; , 1 f �a a s• ♦ yt r I I )♦ ♦ > t 1 . �. @.. -, I I I- -I .� .iI..� ,I ­..:,,� ,iI .,��1. ',:I i�-. II'- w." ,:- �.Ii�,�o ,- ,- .. 't� �- �I,L'" , " r.. I,., 4, ,,,�,�'1.�, �. 0.' - (�- i 1 ♦ rio .t t, L X_v ,C 'f ra ° t, i 1 r'. I ♦, I 1V 1 `` . . . APPENDIX E. lf; G , '' I; i' IYt. iF,• 4 13 11 P, la ?j', :Inlet'Design v � S t 7 ♦r > V , L.. f : r!•i� 'Tt I Z.- _b 4 ♦ i s 1 t t _. r G ' 1 4 t_ r' t ♦ i t 1 . t I'♦ ! *<'i. 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CALCULATIONS FOR STTZ SEi CA�F✓�L_,� SHEET OF j 3 t ( i '� .jI i-'A�-�-t,_�l,•l�_ L�._l. _ �� 1 "1 .J z _:L'.L','_'_I"v_. , i!"�(�Y• l i � �-i .� FT I 1 t i ,`€�f}-��� � t I� { I � 1.. , � }1'''''€{'. L1,J._ _..i.. � _( t t 1 { 7 t �a _ ( I. i? IZ>�—�..�_'L�'' � 1 �/._)�f����j�. 1 1 _ i�_V.�,�W i it I j ._.�_ fI}�_. .. ��-�•i��€—J i I t I fiT_(...�_y_,�1.��'O"L-�.._....-..S � I' �1�� i II �� I •�" , i i1`��I..• y { f• _4s� i 7 1 I 1 I t ! � 1 r�i \ j_i— _ -��'T 1 j !��'��'i I ,_Lt t .�..L.. i ' �•.i �y�i� I i- �L� i•'"' � I-i I _ _j_1 \ � !. . t ! , �j_ I , { , k 1 I 1 CL�?�L\ I I' , I !..._�. 1 _�,i 4 1 1 ! t ' _a 1� it I •'_'i.' 1 1 { { k S ! ! -, 7 Ti- + ! I ' r _ '�i! 1 �f-1 ,`! � , t ! _ i - t�it I k _ _ iT _i.' 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S- _ I _�rr1 y rr!tfL_�� If -�Ir1 ,J j _5...:.__. 1—' ' 0 G0507/3-84 TS ■ TARANTO, STANTON & TAGGE Consulting Engineers CLIENT PROJECT p MADE BY S DATE 28��3 CHECKED BY JOB NO. CALCULATIONS FOR STrLam- Cc-A�\t-\ SHEET OF ■-+? ; �`" ._t_ ? y t{ II Y+ 1 I . `"}If'�It"'i � i � f ,jr'� 1 i _ h i 1 J Y'T-�"'iT lilt tit II I lilt �.."' if lilt I I 1 1 _ '�r � `�i_.. •�7�<<� I i ! III T,I-I1 '_I C. I- 1 rti I i "i 3 ! i i! _7 ''-i �i-t_) { f 1 I -TT I 1 11 f ! if ! , ,� ! Ii T ii I f! ! , i i+ ! jT 1 1 1 1 1 i 1 +_ 1 T L 1_ lilt � ' �' � ��-I_7-ice !f c -�--- ! 4 ! 1 V� '�• � ! ! r f !, i i f l h° i 1 ! , i 1 t�-! I t I ! i + ! I I , I t I �, f I I ! E -?-;- -�-_'"_._r ' '��T I Ti- _r�a_i�_;=�, i i 1 1 1 ,_r '_1 : • 1 1 � I 'QQ7 _=_1� 31•S_ �Y-�� ,�--}-�--�-` 4 I _ ;_ �._ i I ' I �...n�fVL71 , ! ,Ti - _, i ! I / S�'� , !-fit, !1 ,.;:�,:..�-�--? i f I (:vs �-`,- �.,.,. if ,....,• � , , 1 , _L i� iTi T 1 ff , � , � i!• t I� t I i t `f fi , fI , , f + i t } , c , I ! { r, ,___,, 1 { 7 � i -I' `� ! I ' _i ! t t I It ! 1 �', I I It!- - _i t if - �y._->�1r� -t-%- G050713-84 Svr3. 3�1LV 1 - F3 2.0 [> T- . EQUATION: 0 • 0.5G (in) SS >L' 10000 n 15 PDV GFN(SS COEFFICIENT IN MANNINO .10 9000 FORMULA APPROPRIATE TO MATERIAL IN 8000 BOTTOM OF CNANMLS 7000 Z IS RECIPROCAL Of CROSS SLOPE .08 1.0 6000 R[I[A(NLL: N. N. B. PPDC[[DIN43 If AG, 07 50 PAGE 150. COU.110N II.) .80 .06 4000 .70 E%AMPLE (SC[ DASHED LINES) tj.. .05 3000 •NEVI f • D.03 TO \ .60 t :. E/n • IEOD n'01Y N � 50 50 �; .04 .50 2000 V LL r IND: Q 9.0 crB zo _-- ,03 .40 ---- - to Z ------- --.- =��� Z ! - 1000 �-- _ - ! - -.30 900 W �--- z__ A C 800 700 _ 600 =_ `� y N .20 500 Z O 400 w 2 Z ~ INSTRUCTIONS UP I - 300 .01 Q UJ Cy LL. 1. CONNECT Z/n RATIO WITH SLOPE IS) AQ .0S 'Z AND CONNECT DISCHARGE (0) AITH 0! Z .006 2OO DEPTH M. TF[S[ TRIO LINES MUST U E� f- O TURNING FOR .007 In .10 INTCBS(CT AT LINE y/ COMPLETE SOLUTION. c� .006 LL1 a T I �1 �Wpp .0 6 E.roe SHALLOW .005 W 100 _ _ J Y-SHAPED CHANNEL O .O7 FLTX �NNL NOMODN .004 .06 690 Y 60 a O .05 50 s. 10 DETERMINE I Q �i O .003 m 40 DISCHARGE o, IN Q . N .04 PORTION OF CHANNEL 30 HAYING WIDTH S: V DETERMINE DEPTH J 'OR TOTAL DISCHARGE IN 002 .O3 FUSE NCMOGCAPTO F- 20 DMTI(ILMS(CTIOM IO.STCTLIN TINC Oe C0A C 01 Q > • J (r 2 rJ • TO H DETERMINE DISCHAII4[ /� .02 IN COMPOSITE SECTOR:-1 N GL IO .001 TO OBTAIN DISCHARGE IN C.j S[C11ON Q AT ASSUMED (H I>•)I OL P1M J 10S1.1N D FOR From BPR SLOPE RATIO ZAAND DEPTH i THEN DT I D. • G. . Figure 4-1 .01 NONOGRAPH FOR FLOW IN TRIANGULAR GUTTERS (From U.S. Dept. of Commerce, Bureau of Public Roads, 1965) MAY 1984 4-3 DESIGN CRITERIA 10000 9000 8000 7000 6000 5000 4000 EDOAl IDw: o•0,5f(il Si n/ n rS ROUGHNESS COEFFICIENT IN NANNING FOFMULN APR POPPIATE TO WATENINL IN SOTTO. OF CHANNEL i IS AECIPPOCAL OF CAD'S SLOPE REFERExC(: H. R, S. PROCEEDINGS I146, PAGE ISO. EODAIION 1141 EXAMPLE 1S[[ GASPED LINES) 2.0 .10 08 1.0 07 06 .80 I lL 05 .70 p 2000 Glut-- f • 0.05 i • iN i/n .200 n .0! 'n v, 100 70 SO L. f -.04 .60 .5 , • 0.22 c_i6 0 LL LL ry o crf.03 20 .40 -- D Z ��-_ \ Z 7 _ _--�---- S Z —.30 00 W 2\ .02 T C Soo \700 600 500 z ` 2 O 400 W 2 Z INSTRUCTIONS Q300 W 01 07 /Q \-!•• Py LL I. CONNECT i/n RATIO Room SLOPE 151 Q _055 z AND CONNECT DISCMA-GE 101 WITH Oj z .008 200 OtPTH I,I. THESE TWO LINES .UST '_` V 02 Q INTERSECT AT TURNING LINE FOR U) .007 COMPLETE SO UTION. 0 ,01 '1 .006 W V a T 1 W oe [.FOE SWALLOW _ _ .005 100 - N-SHAPED ' LAW.W 90 CHANNEL O .07 80 AS SHOWN USE NOMOGRAPH 70 LT.i ' y W .004 cr .06 60 n. .05 50 ) lO DITIRYIM[ D �j ..... J .003 . (n40 DISC.ARGt 0, 1- ' R V) �. .04 P OPTION Or CHANNEL . Avlx6 WIDTH R:. 30 V DETERMINE OtrTH , FOR TOTAL DISCHARGE Ix .002 03 - ENTIRE SECT10N O. THEN L't[ NO.OG..1. T 20 DETERMINEON IN S(CIION 4 FOR DEPTH Q TO ' I• DETERMINE DISCMARG( • IN CO.-OSITE SE LTIOw�- taf aOLLOW .02 V•% INSTRUCTID. S 10,0 0 , R .001 Q MAY 1984 r •IN DISCM4 GE Ix I�R� iAj SECTION O AT ASSUMED DEPTH ,, 00.7.1. 0 FOR From BPR SLOPE RATIO [A 4-0 DEPTH ,' TWE4 0, 0. • 0P Figure 4-1 .01 NONOGRAPH FOR FLOW IN TRIANGULAR GUTTERS (From U.S. Dept. of Commerce, Bureau of Public Roads, 1965) 4-3 DESIGN CRITERIA 10000 9000 8000 7000 i, r EDUATION: 0 • 0.5E J•� A n Is ROUGHNESS COEFFICIENT IN MANNING .10 FORMULA APPROPRIATE TO MATERIEL IN BOTTOM Of CHANNCC I IS RECIPROCAL OF CROSS SLOPE .08 AEFERLNGE: M. R, B. PPOCEEDINGS I)A{. .07 PAGE ISO. EDUATIOM 1141 .06 4000 EXAMPLE Isc[ o•sx(D ux[s1 � .05 3000 GIVENI S • D.os 100 t 2E n • .ox 1/n . Izoo N � 50 so � -.04 2000 >• U 30 LL FIN - 0 2.0 crs 20 --- .03 10 ------ _—� Z_ ' 1000 _ 3 _ 900 _ 800 2.0 A•I 80 70 60 .50 LL.. .40 LE ^ [.30 700 D 1 =1 600 15 _ .� 7 .. s N 500 = � 3 400 w : F INSTRUCTIONS V[ Q 300 07 Li.! .01 N SL 1. CONNECT [/n RATIO WITH SLOPE IS) Q _°S Z AND CONNECT DISCHARGE (0) WITH = 03 .008 200 DEPTH Ill. TH[SC TWO LINES MUST U .02 INTERSECT AT TURNING LINE FOR N .007 COMPLETE SOLUTION. Q ,01 U 6 z. FOA SHALLOW T _ I IJI- .005 100 v-SH.PED I... NEL > O 90 •S SHOWN USE NOMOGRAPH .004 so W TH t . Y LLI 60 Q. 50 3. TO DETERMINE D �' O .003 T- .,.•.• J 40 DmcHARGE ON Ix j ; B ... U) PORTION Or CHANNEL M AVINO WIOTH R: 30 OETEPMINE DEPTM J FOR TOTAL DISCHARGE IN 002 ENTIRE SECTION O. THEN USE NOMOGRAPH TO 20 DETERMINE ON IN SECTION C 101 DEPTH JIJ M 4 TO rJ DETERMINE DISCNAAGC IN COMPOSITE SECTION �- FOLLOW INSTRUCTION ) I.,. " 10 + i 10 081.1. D.SCM.AGE IN .00I SECTION O AT .SSVMCO 'IR 1>'J) OEll. J ; OBT.IN 0 FOR From BPR SLOPE R.TIO tN AND DEPTH J', TH[N 0, ON • ON Figure 4-1 NONOGRAPH FOR FLOW IN TRIANGULAR GUTTERS (From U.S. Dept. of Commerce, Bureau of Public Roads, 1965) F- .2 0 I- _Z O 0- (f) .10 LJ (L o LU e W .07 06 .05 m Q' .04 U F- 03 Q ~ .02 a Ld 0 01 MAY 1984 4-3 DESIGN CRITERIA 1 1 1 1 1 10000 9000 8000 7000 � IJ r EOVLTmN: 0 • 0.56 (n, S" JPh 2.0 n IS ROUGHNESS COEFFICIENT IN MANNING .10 FORMULA APPROPRIATE TO MATERIAL IN SOTTOY OF CHANNEL [ IS RECIPROCAL OF CROSS SLOPE .08 1.0 PEFEPENCC H. A. f. PROCEEDINGS n.S, .07 P 5 O AGE ISO. COLA ION 1 1 80 06 4000 70 EXAMPLE (SEE D.SNLO LNEfI 3000 clvcNl S • 0.03 .OS 60 ,0 TO \ 2000 J • 0.1 U 30 20 li. U- FIN01 1.0 CIS —— —. .03 .40 ---- -- to Z --. -----—���� Z s 1000 3 900 _ _—_ 2—_ 0 .- i 800 700 600 = Cy T ^ s (n 500 = v 0 400 W .2 INSTRUCTIONS (7 I Q 300 oT 01 ,y fL I. CONNECT L/n RATIO WITH SLOPE PSI Q .OS Z nQ u AND CONNECT DISCHARGE (0) WITH 03 Z 8 200 DEPTH IJ). THESE TWO LINES MUST U 02 Q F- INTERSECT AT TLPNI NG LINE FOR y/ .0o7 COMPLETE fOLVT10N. Q .01 " ,006 V ' I [. FOR SHALLOW _ _ J .005 100 90 M-SHAILD C.... EL O AS SHOWN USE NOMOGR.PN 80 «ETH E . r .004 W 60 a 50 3, TO DETERMINE I R �' .003 40 DISC 0, IN J' O '^ V/ 10R110N OI CH... [l I - H.IONC WIDTH R: I----.-- 30 DCTCRYIM[ DEPTH J FOR TOTAL DISCHARGE IN 002 [%TIRE SECTION O. THEN USE NOMOGRAPH TO 20 DETERMINE O, IN SECTION % FOR DEPTH "J ITl rJ .. TO DETERMINE DIscH.RCE. .% COMPOSITE SEC". J I ••,••••, LOWOST Z I 10 �I .001 NINSTRUCTION TO I TO Of i11M DISCHARGE IN l ; mil z SECTION 0 AT ASSUMED CEO'. J: 061.1. 0 FOR From BPR SLOPE RATIO [P AND DEPTH ; TNEN 0, 0, P�0. Figure 4-1 NONOGRAPH FOR FLOW IN TRIANGULAR GUTTERS (From U.S. Dept. of Commerce, Bureau of Public Roads, 1965) .30 m3wXSl Z (n .10 W a .08 w 4% .07 0 06 .05 m .04 V .03 Q .02 a w 0 m MAY 1984 4-3 DESIGN CRITERIA 2.0 1 J EOUATIDN; 0. 0.56In, Sh J"S ' 10000 n IS ROUGHNESS COEFFICIENT IN MANNING .10 9000 FORMULA APPROPRIATE TO MATERIAL IN 8000 BOTTOM OF CNANM(G 7000 E IS RECIPROCAL OF CROSS SLOPE .08 1.0 000 REFERENCE! R[NLL N. A,0 PROCEEDINGS 1144. .07 50 PAGE '50. EOUATION 11.1 .80 .06 4000 .70 EXAMPLE Is[F OAsw[D uN[s1 .05 ' 3000 =10070 W 60 YLNI S 0,03 70 n= aIn . I,00 30 .04 .50 2000 J• U sc VLL - ' F--ND�0=L.0 G --- - 03 .40 Io Z 1 1000 900 3 _ - -.30 .02 800 u C \700 600 0d T _ 3 20 500 z CC .3 0 400 W Z Z IN57RUCTIONS ' Q 300 .07 J RATIOa- 01 N 1. CONNECT L/n RAT IO N1TN SLOP[ Is1 Q .Oy -'1 a (L •ND CONNECT DISCHARGE 101 NIT" = 03 fz ,008 200 OVTN 1J). T„LSE TWO LINES MUST 'U .Oz Q .007 '�/� .10 ' INTERSECT AT TVRNIND LINE FOR y/ YA/ COMPLETE SOLUTION. Q .01 - " .006 W V a os L. FOR SHALLOW T _ I .005 W 100 V-SHAPED CHANNEL J U_ W .07 ' 90 AS SHOWN USE NOMOGRAPH O 80 } .004 .06 70 ALT. E 60 a 0 .05 ' 50 3. TO DETERMINE R �J' O .003 J m 40 DISCHARGE OF IM t N .04 PONT-ON 01 CHANNEL I _ (_) w AYING NIOTN R: 30 DETERMINE DEPTH J FOR 70TAL DISCHARGE IN .002 V ' [MTIRL SECTION W. THEN USE NOMOGRAPH TO ` .03 20 DETERMINE OF IM SECTION C FOR DEPTH Q i • TO DETERMINE DISCHARGE.02 IN COMROtIT( 5[LiIDN ,- f W .1t"£"' LV f OLLOW INSTRUCTION S I" 2• WQ to TO OS THIN O.00l IS CHARGE IN 'I�_F�� E111Aj SECTION ' R AT ASSUMED 't•IJ-J1 0EP1H 1, 091 . ON FOR From BPR SLOPE RAl IO E AND DEPTH ; THEN 0, , 0 • OR Figure 4-1 .01 NONOGRAPH FOR FLOW IN TRIANGULAR GUTTERS (From U.S. Dept. of Commerce, Bureau of Public Roads, 1965) t t ' MAY 1984 4-3 DESIGN CRITERIA [J 2.0 i C OUATION O. 0.St It�Sh J�� n I0000 IT IS °OVDNM[LG CD[f IIGIEMT IM YIM NIMO 10 9000 fO11YUl• All 11011111TC TO Y•T EN11L IM 6000 DOTTOM Of CHAMMEE 7000 E IS RECIPROCAL DI CROSS SLOPE 7.08 1.0 000 REFERENCE Y A. I PROCEEDINGS GAS, .07 500 PAGE 150. [OOAf10N 1141 .60 06 4000 F .70 XAMPLE ;SEE D•fH[o LIN[sl LL .OS ' 3000 DIRE o.os loo TO \ .60 It00 U 50 �.04 .50 2000 J ° U 30 tl ' FIND I 0 • t.0 GIf xo--� 03 .40 ---- Z ------ — --__—.-- ���� Z 7 1000 5 5 Z - .30 900 800 700 -600 a N 500 .20 3 F' 400 W x Z INSTRUCTIONS J Q300 .01 1. L.n oT W a 1y CONNECT RATIO WITH SLOPE IEI Q .0S `� NoCONNECT DISCHARGE 101 WITH 0' 008 200 OEPTN I11. THESE TWO LINE % :UST 'Z`" 02 Q INTERSECT AT TURNING LINE f0I V/ T .007 N .10 ' COMPLETE SOLUTION. IJ .01 y" .006 W V a T 1 W Roe t. FOR %,ALLOW .005 100 T-SHAPED CHANNEL J U— W '.07 90 O a ' B0 160 AS SHOWN USE NOMOGRAPH 70 WLTN C . y W .004 cr .06 CL .05 50 5, TO DETERMINE T: —° r' 0 .003 ' 40 DISCHARGE oA IN J j V) X .04 PORTION 01 CHANNEL I (i) HATING YI01N I: 30 V D[T[RMIM[ DERTN J FOR TOTAL DISCHARG[ IN 002 .03 ' ENTIRE E[CTI'Y °. THEN USE NOMOGRAPH TO L_ 20 DETERMINE 0 I% SECTION R FDA DEPTH Q J ALI E T ' A. TO DETERMINE DISCHARGE 1 J ° r ,02 IM COMPOSITE SC Ci10M F- ° f OLLOW INSTRUCTION % ! �A C� W 10 'I�P� ,OOP Q IO OITRIM DISCHARGE IN IPj SECTION a AT ASSUMED 'EAIJ-J1 ' DEPTH JT OITAIN 0A FOR From BPR SLOPE RATIO [A AND DEPTH > THEN 0, 0, • D, ' Figure 4-1 .01 NONOGRAPH FOR FLOW IN TRIANGULAR GUTTERS (From U.S. Dept. of Commerce, Bureau of Public Roads, 1965) 1 ' MAY 1984 4-3 DESIGN CRITERIA �� t <(2 r h r r '1 � f �� '� � •� p•Jf� x 11 1 S t r 1 ♦� 1 t A 1 t - r r '♦ < J r ` .a .t t 4tt _ 1 t y •1. r } _ r Q v r J J 1 � +t + ` r t 1• ? ' t S f V t - . •r 1� 1 .f �J�' • a.. i. t J ,'JYf • t, a � t � o I L i i r '�Y .� b i ta'�1 .f i • r t APPENDIX G. 1980 Report Calculations ' Y It '1 4. :r r < L. 1 ' n • It It f` S • ' 1 T / JOB —NO. TARANTO. STANTON • TA069 1Zc����rtC Qt;, U, D• CALCULATIONS FOR �o OOF[OL[COIN[[[[ PROJECT . IOAI COLLINS.LLIFCO LO[A00 MADE BY DATE CHECKED BY DATE SHEET /3 OF PON"cll V • %�c ,� f�(?� »a /� /1f. 7Zaa S. $ % oc.. d e'ho. •.col I x G i DF ;I...'. J;o �I2 i 25,83� 1.5 1-32 3 zo 5.Z ; 37, 3/6 c 5 GO SS, 977 6 qp l,q i G/,3G0 7 /zo l .lt I Ga, 2 03 3/, 609 6.0 39, 612. 3 zo .. 5.z 1r5, 658 30. } s (0o 6 /•9 751 0 72 .90 r .. /zo 1,4 173, 5 ' y�T / JOB NO. . TA.0n TU. STAn Ton • T.GLI CANTO. InO TO-&IINGIRr.As Ion 1 uLuna. C.L4.4.. PROJECT pA �'T '}� P. U. J• CALCULATIONS FORK. 1 - MADE BY DATE •L�,y�CHECKED BY DATE SHEET Z OFIAN ii O U 0 O � c G W r 4 o' U O 1d9 n A Fk Po W O r f A \ U -a CA ML TASANTO. STANTON • T•CC[ �-..'i7. ., CONauLTIMC [NCIN[ua PROJECT_- f CALCULATIONS FOR FORT COLLINS. colouoo /`• �n MADE SY 'r� i DATE 44 I�NECKED BY -DATE -SHEET OF VO I • "• c. . 4-1 30�70o 4o z� -i zo � 2 4-199D• 3 f 7-31 L�rp. 1�134.o. 3 b ► . D. ....._.... 1. 9 4-o. f vOl,w/0• III Frnolio.-tJ.=z•I�2- _ Vol. F ... �.,�/IID Fxonh�rd iiDh%—ON�GI ' Goml 00re.• %cI PCi• S"SIT/'YJs'I Vo I. ,,a 13,-'5 -51 — — -- F.._..,. - 67 ¢ 3g n 34 �' Vol. Vol k0/1.0 FQPPs10A/�_ �"b4'ac.. �I i C•r�T. M C-'S I_o�..� JOB NO. OD4 ��Dr I J T.ne NTU. STANTON ♦ T+u:C 'ram/ U. Cl.\ COI NbULTIN4 NCINEERb PROJECT „2, GL r 1-� C • CALCULATIONS FOR rou COLL1n L, COlouuo ''� L,( Q MADE BYti•J..'[,�__DATE CNECKED BY.'DATE SHEET17OF S I�_'__� S`Of 11SeW2r 31�1�t W0.S y 0.CG 0 ��p� IS J 31 tiC 6. ¢CLQc 1 Ip•. .. T1L.,- �0�� O�d -t ly. 2 t _ ...: :... �• Pre s v re. P ) V• Vel'o t :..__ . Acca.leco��o,, okviq_ 0 �cav-1ty (32.Z ft�3e� V% He-0-4 1o5� doe -to ytc-t,o, 1I De kL r r 1 LA— _ Polr� al VI� p • i T ..L �j L rD\h\ r G D ri y77L ]7�� 1 + 11y'r i z 0. v ar 1 c�� lor, h x & t � 1 ��rr,,� F.S. f- O'• 5 ¢ ` 0rK vZ � >-fl.•\s accov�s ..�oc �'I.c. cok�rctc�•ioti.. i 1015".5e3 6� -tut- al Tl?e. 1 r1 `4�o NO. 044 4 - 006 ?"T�� ( ` .T__Joe T+CONTO. STANTON T+GGL S A �r�,7V plD,kf ENGINEERSOAG CANTO. PROJECT ,� V CALCULATIONS FOR r� FORT COLLINS, COLORADO MADE BY15� DATE LLLZICHECKED STOW DATE HEFTOF Z Q� rOLJ l\� ti�_¢SS C-O4I C-I f �� O� JIA- loss Coe>, L i cw't C•Z S v��c\� . �E t=X C e--s5 'A' La %JtIv'� It �0110wI.'T v 03 uc--S vL - , 0►3 ►r. �4se eale�lc�,o.�. D - o\ a V%N 6 e,c 6� P ,p e- .:._':::.;. -tom. '� co�lc'o..,••� w� �� d ��'ecw�, h•Q, i� ve, ce-4virtd\ low, Z t �� IS %AIL ,ve -ftL p,prz ,. U �t c'cA T� -fll�. ce \�u,reol how . 3 d¢�eacw.��tlk� +�.�. e-leva�\Ow -tLL. S�¢ao�5 . 4\j Ids - ,r t 1�-i. C.e- c� v� re (A � I o W a-v a' e V- .. 2gL0. -PI.o VI = TI�,s I� `1 vE tCr G 5�'cic SG.A ¢ r 5l I. i tOIr ILL, / s uety ist.c-ter 1� Seco,:ck Is -}14N., ��,o�- 11 .LLllnl. En1.InI L.n 9—NT _ _ PROJECT ..... __... _ ....-.------CALCULATIONS FOR MADE BY — —DATE ._._—_CHECKED BY —DATE - JOB NO. SHEET / 4? OF Z 7_ i� V0-IVmL p� 1i� �.lU•�a'� I� (0.tu�� ��UWLvCT :S 1-- ct It" cit10i•- W1�aK� 1}� Ivitt T0,.1�\ 1S A %��k��1�v(A J ��J vt-�Ot-II I 73 mot xen \q.Ib1¢. . 77-4-Ce oc*e _tLA. r�Sro�. Ia\.dii to be. cro¢�vaC41v�, Par�)c\l�0.r�r �o� T•.. � ro&t—o,,,n. p c � Iz c.)v-t -to *l to W t k� EXaW.o,a.. 1 m i n H I t•,1 Elwo_t o-c%v, Wt. ,.OUT E,I¢.v0.\}ov. 1..20.�. Ou� C�.1•{�• - FLOIA Flow recvlred� A r 1 UIRhI P,pq ,yyltyI , X- �ec�Io,.o.` ocea o� pl�e• - �tz Il 1• Pr tia5 IVaEL= Ye�oc;iy ,tom pIPe. @ �e��,«l Q_it,4er. i+jh t�� r Iui2 ^IJU_ }-a` �? f 54 HL:`•t:: H ea.O` 1105� //OOO PIPS• i 1 J ai . Ii i Er�t-;: HEAD IF + (14E>`_�k CI j v03ve, iIs �aq�11\v4- 1 [1 ► 6 rea? L7 x- cl jo Proc(uC-e. r�v\t eol ��OW 1 9-+NT�'—t 1 r ` I Joe No.-04 4,-oor pro TANA-TO. STANTON • TAGGC CONaULTING CNGINCCu ro.T COLL\NL. COLG.AYO PROJEC\\A``rSJ<-•CAICULATIONe T �•{. FOR �Af^NA_ -IO ..JQLr MADE BY DATE CHECKED BY —DATE. SHEET OF 91 _ C. 5 Q' 3.43 (tco, .Z c- I) 4 -f .78 (t re , =G z�+ /. 3 7 •41. _I H I t•4 3 \. I. ♦ -� c o v... pe...dlz C D (� +9.9Z C{foA�=G-I-�� - : ��. ❑SIT 1 =' 5 FLGl�1 a. •/9s 2> ` z S'� t_ e. Stogy 1 t rytf Q - r. - t. r. 'I'�#17.1_��: -' - HL.'IC E,'E S HEAD IF + --------------------.. tar /5 � • s,.ao ZS , r r of J � ♦ a � }, t \ 1 4 f \ \ \ f F 4 ♦ rA I \ Y a f •Yl ,I. fr f � 3 i 1.4 , i. , :~ r ''APPENDIX H: h ' Er osionControl Calculations r ♦ 1 J I.� J ,. J 1 1 J i S 4 t J 4 � f l 1 ( I, �J y • r _ r r ' 1 , ♦1 r ` •J• ` 1 t { l t •� 1 f M1 ✓l ,. i r I 1 f y ' 3 y 4 1 l � 4 ' TARANTO, STANTON & TAGGE Consulting Engineers CLIENT -- _Un�L'i�[V%� �I�=� r'�I JOB NO. c PROJECT �'�+ ""c CALCULATIONS FOR . MADE BY DATE CHECKED BY DATE SHEET 1 OF i �MBDFSZ:aT_cI.._,1:�"1CC.Zttt If I 1 ; It tt �� T j - -I _ II 1 1 1- if -I.is�'�[.1'"" STA:1J✓.irLyf2J.� i 1_. ... ! i .. If f i I! t �,�I t I � T�' I I : t i ! IL ! -I TSUNI '{L X'F'. �� — I f' 1 1 1 i l—"' l• �'i"- Ti—!�"C i ,'^1' f i� r 4 T-'T h , 1 -j _ r b"`• T'r'�;" islir`-y'��. r t I i i i s....1 , I 14_� _��� -"-z_`�i-iM' .fiy1�1 i I i ._{S t '�._i i( I I! t l i t __i �'1_ r 1 _ I �i ' i, I if I i ; -tom j !- C i i5: C .SV��_t I 1 ! t .!`i?'_ t I; i i 4 till ���J� ! ! �. � �- 1 1 1 1� �� I� I 1 ��� 1 i i + I i i + b A _' , l I 1 r i i T -_ _J..,.� i a� f }i ! I i. i + �I i ' _,___r!! I I' ((t!- t i ; .0 u. I �+ i i I't !''j�"��__I I ���`-it'i - i i •�-i M " I TT i-s-�'- _ I�.I i I ! 1 I 1 1j1 11// i _- _!--{_ 1J..1 t _ 1 , �+-- L� �` "�•fiSb-I I I I_1�I- 1�- I L' i �r ��-1 03_�C2.��-��:zs(o:�2�� J 1 i ' �'T T! 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' t (� , j_ 1 1 "{ 1_f i 1 1 I .I- 1 1 1 i ri II I 1-`- t i II I 1 I I L 1 -r _. a I i _f_I ' h�� - 1 1' m G050713-84 TARANTO, STANTON & TAGGE Consulting Engineers CLIENT PROJECT MADE BY � DATE S (.D q:'N 3 CHECKED BY CALCULATIONS FOR DATE JOB NO. SHEET ` ' OF " JT 7-1 ITT Z t lr o d.�'�1-�z_-C�•as�xT If 4 _i I,_ • 11 ",'! if II 1 i _ I 1 It i 1 t { l., T-' f 11 1 ,... � � , •_ I it I � ,�T�I � i-. 1�-; _LI L I , , � ,-T' � � , -'`T I < � { "1 , ' I �'��`? t i— ; t >ti;_ ' • I--'—{ �.� . � C � • ' i t i T I s I 1 i Ir yam' ! I • 1 (7 1 1 F I � f _�I'� f s I ! f I -i I i I ! I( i - --�-.� J f! t t� 1 ! t I II I I __ NET=2�rz,�nr�.c9cE _T3'�n�c.�l� I I t 1,y ! , t 1 ..L._.i { i-,- --:-^_-t-' t r-• I�!-'-+� Li ..+�t , i�1 L ! t r 1 i�+ I I' ' , , �_. T"i t i� 1 1 1 1 I 1 1 i 1 1 I I i } 1 i I 1 1 1 I 3 1 {�..��I } s.. 1 , I , 1 ,. , I r i ! —..__ .Gcx.-T7-1 1 1 ' ._:_ �._!_. { T{ If T-!.-j_ L—(. t ! .'�� { 1 I I 7 , • I,y ' Tom"" f � I � ! 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I�:)--TZiS-CcC-�, ' PROJECT MADE BYz DATE=ql(Al- CHECKED BY l,� CALCULATIONS FOR SHEET -J OF 1-4 ''-1-%-�-..7.w. r. � i _`""'1J... i....-R..?.- 1 '-.1— �5-- ITT, �-• � - 1 l�: ..�..�.! 1 a I R�'Sn ;1 �tZLtir.� j TJ T f �c-Tt'T�i f0=�-r�'+.✓�, 1 �ti�,L� `f"� _��C�Sc� ��5 /�>1'-c�C1-.�t�<_'�� I�2�►i-ice .��l1Zlt�—�1.�^ik?+G > t�vt� i ..,T.1..J - � I i. _ -. $ A?�-Z-�:a��Ti�"� �-erJc.�t'2�� � `TIC€� 1�=T�A,�•�' �i-X;i � �i W .�+... - _l _L _ Et�wSS`�( 1U Attu n�rz,F C-�oC aa5'hz� a -, e�vc.LN n`vZl sr eT: _jTti Wr' L'r= I I I I I! 1-1 if --ti--=--- -_ it i 1 I,—T—t--1 t i' II ..C.J -t '�'� { I 1 1 I ' I I I " I 1 I ++ 1 i f -..._.�........,! r I I i I I_ t: ��} ?_ t ��! t I i r 11`T �._...�,.' �._L'rt�i _.J. 1 1�T ice- �t-;�ci�•�'��—� C7.5 �"Sv�:,..�:�c�^}2w1��`� + t I{ ! --•i--�-'T. 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DETENTION FACILITIES PREPARED FOR: City of Fort Collins Stormwater Utility 235 Mathews Fort Collins, CO 80524 Lidstone & Anderson, Inc. 736 Whalers Way, F-200 Fort Collins, CO 80525 (LA Project No. CO-FC-93.09) November 4, 1993 ' LIDSTONE & ANDERSON, INC. Water Resources and Environmental Consultants ' 736 Whalers Way, Suite F-200 Fort. Collins, Colorado 80525 ' (303) 226-0120 ' November 4, 1993 Ms. Kate Malers ' City of Fort Collins Stormwater Utility 235 Mathews Street ' Fort Collins, CO 80524 Re: Hydraulic Evaluation of the Storm Sewer Outfall for the Raintree P.U.D. Detention Facilities (LA Project No. CO-FC-93.09) Dear Kate, Lidstone & Anderson, Inc. (LA) has completed the analyses associated with referenced study and is pleased to submit the attached letter report. We believe that the analyses and report are complete and provide an accurate description of the hydrologic conditions which affect the Raintree detention facilities storm sewer outfall, and the hydraulic conditions in the pipe system for the 100-year event. ' We hope that this report will meet your needs in explaining the storm drainage situation ' associated with the outfall. If during the course of your review of this report, you have any questions concerning the study please do not hesitate to call me. Sincerely, Gr o . Koch, P.E. Senior Engineer ' GJK/tlt Enclosure 1 ri Branch Office: Box 27, Savery, Wyoming 82332 BACKGROUND ' Development of the Raintree P.U.D. began in the early 1980s with the commercial area which now exists adjacent to the northwest corner of Shields Street and Drake Road, south and east of Raintree Drive. Two regional detention ponds (Ponds A and B) were constructed to serve the Raintree area. These ponds are both located between the New Mercer Ditch and Larimer County Canal No. 2. The outfall pipes for these two ponds connect at a manhole ' located south of Larimer County Canal No. 2. From this manhole, outflows are conveyed under the canal via a siphon, and then west in a pipe to Spring Creek. The outfall pipe confluences ' with Spring Creek at a point approximately 175 feet downstream of the canal. As a part of the original drainage study conducted in conjunction with the Raintree development, allowable release rates were established for the two ponds. In the document "Storm Water Drainage Report, for the Raintree P.U.D." (TST, 1980], release rates of 4.37 and ' 5.94 cfs were specified for Ponds A and B, respectively. An hydraulic grade line was established for the downstream pipe system. The resulting hydraulic grade line is documented on the utility plans for the "Stormwater Detention Facilities for Raintree P.U.D." .[dated 1985] ' which are on file with the City of Fort Collins Engineering Department. (It is noted that in the 1980 report, the Pond A and B designations were reversed relative to current conventions. The 1985 utility plans show Pond A to be located east of Pond B; this is the currently recognized labeling scheme.) ' Orifice plates were designed and constructed to meter outflows from the ponds. The utility plans for the outfall system indicate that the hydraulic grade line at the downstream face of the orifice plates for Ponds A and B leave 0.30 and 0.21 feet of freeboard (below crown of pipe), respectively, in the pipes. ' PURPOSE AND SCOPE OF THIS STUDY It is currently proposed that Pond A would serve the new Raintree Townhomes and Fort Collins Senior Center developments, as well as a portion of the Raintree Commercial site. An existing storm sewer directs runoff from a portion of the commercial site to Pond A. It is also proposed that Pond B would receive runoff from The Preserve development and a portion of the ' Raintree Commercial site. Similarly, an existing pipe conveys runoff from the western fringe of the commercial area to Pond B. ' Drainage studies currently being conducted for additional development within the Raintree area, notably The Preserve P.U.D. [TST & LA, 1993] and the Raintree Townhomes P.U.D. [LA, 19931, .have found that the existing detention system is under -designed to accommodate 01 rdeveloped condition runoff from the 100-year storm. These drainage studies have determined that both ponds would have to be enlarged in order to adequately detain flows from the 100-year ' event. The results of these studies have pointed to the possibility that the existing detention system may be inadequate even without development of The Preserve and/or Raintree ' Townhomes. Consequently, this study was initiated by the City of Fort Collins Stormwater Utility to verify the capacity of the storm sewer outfall system for Ponds A and B; with the ' purpose of defining higher release rates from the ponds, if possible, to the extent the system's capacity will allow. The primary constraint in defining the capacity of the storm sewer system, as specified ' by the Stormwater Utility, is that outflows from the ponds not pressurize the pipes at the downstream face of the orifice plates. This requirement is commensurate with the current ' condition as indicated by the existing hydraulic grade lines. In order to ensure that this constraint is met, the minimum freeboard requirement in the pipes was set to be 0.1 feet. The scope of this study included an evaluation of the Stormwater Management Models (SWMM) for the Spring Creek Master Drainageway Plan [EPI, 1988], The Preserve P.U.D. ' [LA, 1993], and Raintree Townhomes P.U.D. [LA, 1993] to determine the worst -case hydraulic condition for the outfall pipe; i.e., maximum tailwater in Spring Creek versus maximum outflows from the ponds. This study then involved, iteratively, UDSewer and SWMM analyses to determine maximum allowable release rates for the two ponds based on the capacity of the downstream storm sewer system. ' HYDRAULIC AND HYDROLOGIC EVALUATION Due to its connection to Detention Ponds A and B, the hydraulic analysis of the Raintree ' storm sewer outfall is actually a UDSewer analysis of the pipe, performed in conjunction with a hydrologic (SWMM) analysis of the ponds and Spring Creek basin. It is noted that all ' hydrologic analyses either investigated or conducted for this study were based on the 100-year developed condition event. ' The SWMM analyses associated with. the final drainage reports for The Preserve and Raintree Townhomes (as of October 6, 1993) were the basis used by the current study for determining outflows from Ponds A and B. It is noted that these reports have not yet received ' final approval by the City of Fort Collins Stormwater Utility. Consequently, any modifications to the reports which impact detention must conform to the assumptions and results of this study. 1 Any adverse impacts to the storm sewer outfall system arising from future detention modifications would need to mitigated. 1 2 ' The Preserve SWMM analysis used for this study included the three proposed on -site detention ponds and the proposed expansion of Pond B. The Raintree Townhomes SWMM analysis used for this study included the proposed expansion of Pond A, and conceptual storage for Tract B of the Fort Collins Senior. Center site to allow a peak release of 4.09 cfs under developed conditions. This release rate was documented in the "Final Drainage and Erosion Control Report for Fort Collins Senior Center" [TST, 1993]. An evaluation of the results of these two hydrologic analyses indicated that the combined peak release would be 12.0 cfs occurring at 3 hours 0 minutes (after rainfall commences). The peak outflows from the individual ponds would both occur at this time. The discharges would be 6.1 and 5.9 cfs for ' Ponds A and B, respectively. The results of the developed condition SWMM analysis conducted for the Spring Creek ' basin (as reported in the "Spring Creek Master Drainageway Plan Technical Addendum" [EPI, 1988]) were reviewed as a part of the current study. It was found that the peak discharge in Spring Creek, at the confluence with the Raintree outfall, would occur at 1 hour 25 minutes and would be 2,040 cfs. Furthermore, the discharge in Spring Creek at 3 hours 0 minutes (the time of the peak outflow from the detention ponds) would be 882 cfs. Based on the HEC-2 analyses ' conducted for the Master Plan, water surface elevations in Spring Creek were interpolated for both 2,040 and 882 cfs. The resulting estimated water surface elevations are 5033.66 and 5032.45, respectively. It is noted that in 1992, improvements were made to the north bank of Larimer County Canal No. 2 which impact the Spring Creek floodplain in this area; the Master Plan HEC-2 analysis has not been updated to reflect this change. However, these improvements are located upstream of the Raintree storm sewer outfall at Spring Creek. Consequently, it is anticipated that the Spring Creek water surface profile in the vicinity of the outfall (and therefore the tailwater elevation for the storm sewer outfall) should not be affected by these improvements. ' The Preserve and Raintree Townhomes SWMM results were reviewed to determine the pond discharges at 1 hour 25 minutes (the time of peak flow in Spring Creek). The total discharge at that time would be 11.5 cfs, with Ponds A and B contributing 5.9 and 5.6 cfs, respectively. ' In order to identify the worst -case condition, two initial UDSewer analyses were conducted, one each for: (a) the maximum 100-year water surface elevation in Spring Creek, with the reduced pond outflows at 1 hour 25 minutes; and (b) the peak release from the ponds, with the reduced water surface elevation in Spring Creek at 3 hours 0 minutes corresponding to a discharge of 882 cfs. The results of these analyses indicated that Case (a) would result in the most limiting hydraulic condition in the storm sewer outfall. Consequently, all subsequent analyses were conducted for that case. ' 3 I n 1 1 1 11 The initial analysis for Case (a) also indicated that water surface elevations at the orifice plates are actually lower than those shown on the 1985 utility plans. However, due to the relatively limited incremental freeboard available at the Pond B outlet, the previously prescribed allowable release rate of 5.94 cfs (actual peak release rate of 5.9 cfs) appears to be appropriate for that pond. On the other hand, the somewhat larger incremental freeboard available downstream of Pond A suggests that a higher release rate may be possible. Multiple UDSewer analyses were then conducted using incrementally larger release rates from Pond A. until the specified freeboard requirement in the pipe was met. The final freeboard in the outlet pipes for Ponds A and B was identified as 0.30 and 0.11 feet, respectively. Although freeboard is still available downstream of Pond A, additional releases are not possible as they result in backwater in the Pond B outfall pipe thereby violating the freeboard requirement at that location. Based on these results, it was determined that the allowable release rate from Pond A, based on downstream storm sewer capacity, is actually 6.1 cfs, rather than the 4.37 cfs specified in the 1980 drainage report. The final UDSewer analysis for the outfall pipe system is included in the technical appendix provided at the end of this report. An assessment was made of the validity of The Preserve and Raintree Townhomes SWMM analyses in light of the results of the hydraulic analysis of the storm sewer outfall. The tailwater in the pipe at the downstream face of the Pond A outlet orifice would be identical to that shown on the utility plans. Since the tailwater elevation used to develop the original Pond A rating curve was taken from the utility plans, this would not constitute a change to the Raintree Townhomes SWMM model. However, the change in allowable release rate would require an increase in orifice size. With the increase in potential outflows from Pond A, the SWMM model developed in conjunction with the Raintree Townhomes drainage report was modified to reflect the altered storage -discharge curve. Results of this analysis indicated that under the conditions defined above, Pond A would have 0.66 feet of freeboard during the 100- year event. The hydraulic grade line elevation at the downstream face of the Pond B outlet orifice would be 0.1 feet higher than that given on the 1985 utility plans. Therefore, the orifice plate originally designed as part of The Preserve drainage report was enlarged slightly to meet the actual modeled release rate of 5.9 cfs. This modified version of The Preserve SWMM model was used in the analyses for the current study. All SWMM computer output, (i.e., that associated with the Spring Creek Master Plan, and the Raintree Townhomes and The Preserve P.U.D.s, modified herein) is provided in the technical appendix to this report. 4 SUMMARY AND CONCLUSIONS The hydraulic evaluation of the storm sewer outfall associated with the Raintree P.U.D. detention facilities included an assessment of. (a) hydrologic modeling of Spring Creek, per the Master Plan; (b) hydrologic modeling of the areas tributary to the two regional detention ponds, performed in conjunction with The Preserve and Raintree Townhomes drainage reports; (c) tailwater conditions in Spring Creek; and (d) timing of outflows from the two detention ponds. The limitations and assumptions inherent in the hydraulic analysis of the storm sewer outfall are described above. Detailed descriptions of the Preserve and Raintree Townhomes SWMM analyses can be found in the drainage reports for those developments. The results of this hydraulic evaluation indicate that, based on the capacity of storm ' sewer outfall, the allowable release rates for Ponds A and B are 6.1 and 5.9 cfs, respectively. The 5.9 cfs release rate for Pond B is commensurate with that previously defined for that pond. ' The allowable release of 6.1 cfs for Pond A is an increase of 1.7 cfs over the original rate. These outflows would result in 0.30 and 0.11 feet of freeboard in the downstream pipes at Pond A and B outlets. Avoiding a pressurized condition at the outlet orifice plates ensures that the ponds would not be hydraulically connected in the sense that one pond would not be able to back flows into the other. At these levels, and for the conditions defined in this report, the available 1 11 I freeboard in Ponds A and B would be 0.66 and 1.0 feet, respectively. 5 POND B OVERFLOW (A -A) LEGEND SWMM Subbasin Identification SWMM Detention Pond POND B BERM (B-B) UDSewer Manhole Identification UDSewer Storm Sewer Identification i xw munorry ('w./ � --ei' V28 •, r N lyY O �e Qp ¢tv s041 .I NOTE' OFFSITE DR41NAGE FEATURES AND 7011 MAPPING FROM R41NTREE COMMERCIAL P U PHASE 1 AND 2 DRAINAGE AND GRACING PLANS, (PARSONS AND ASSOCIATES 7984, 7985) 0M TST, ING. 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