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HomeMy WebLinkAboutDrainage Reports - 10/20/2004u 1 I I I I I I I J I pROpMTY OF FOaa CoLlpnf NjTnmmo FINAL DRAINAGE AND EROSION CONTROL STUDY For CAMBRIDGE HOUSE LOFTS FINAL DRAINAGE AND EROSION CONTROLSTUDY For CAMBRIDGE HOUSE LOFTS Prepared for: Vantage Properties West Plum Street Fort Collins, CO 80521 Prepared by: North Star Design, 700 Automation Drive, Unit I Windsor, Colorado 80550 (970)686-6939 October 20, 2004 Job Number 136-02 North Star ® design, inc.: October 20, 2004 Basil Hamdan City of Fort Collins Stormwater 700 Wood Street Fort Collins, CO 80522-0580 RE: Final Drainage and Erosion Control Study for the Cambridge House Lofts Dear Basil, I am pleased to submit for your review and approval, this revised Final Drainage and Erosion Control Study for the Cambridge House Lofts. I certify that this report for the drainage design was prepared in accordance with the criteria in the City of Fort Collins Storm Drainage Manual: ., I appreciate your time and consideration in reviewing this submittal. Please call if you have any questions. 700 Automation Drive, Unit I Windsor, Colorado 80550 970-686-6939 Phone . 970-686-1 188 Fax TABLE OF CONTENTS IF TABLE OF CONTENTS ........................................ 1. GENERAL LOCATION AND DESCRIPTION 1.1 Location...............................................................................................................................I 1.2 Description of Property ........................................................................................................ I 2. DRAINAGE BASINS AND SUB -BASINS 2.1- Major Basin Description......................................................................................................1 3. 2.2 Sub -Basin Description:........................................................................................................2 DRAINAGE DESIGN CRITERIA 3.1 Regulations..........................................................................................................................2 3.2 Development Criteria Reference and Constraints..............................................................:.2 3.3 Hydrologic Criteria .................. 4. 3.4 Hydraulic Criteria................................................................................................................3 DRAINAGE FACILITY DESIGN . , 4.1 General Concept..................................................................................................................3 4.2 Specific Flow Routing.........................................................................................................3 4.3 Drainage Summary ...:..........................................................................................................4 4.4 Variance Requests................................................................................................................4 5. EROSION CONTROL 1 1 5.1 General Concept .............................................. :.................................................................. 4 5.2 Specific Details....................................................................................................................4 5.3 Dust Abatement................................................................................................:..................5 5.4 Tracking Mud........................................................................................................:.............5 6. 5.5 Maintenance .................................. ................. ......................................:.:............................5 CONCLUSIONS 6.1 Compliance with Standards................................................................................................5 6.2 Drainage Concept................................................................................................................6 6.3 Water Quality and Erosion Control Concept.......................................................................6 7. REFERENCES.................................................................................................................................6 APPENDICES A Vicinity Map B Hydrologic & Hydraulic Calculations C Erosion Control Calculations D Figures and Tables I i 1. GENERAL LOCATION AND DESCRIPTION 1.1 Location. The Cambridge House Lofts is located in Old Town Fort Collins. This project is located in the Northeast Quarter of Section 15, Township 7 North, Range 69 West of the Sixth Principal Meridian, in the City of Fort Collins, Larimer County, Colorado. See the location map in the Appendix. The project is located in the southwest comer of the intersection of Plum Street and Shields Street. The project is bounded on the north by a church and Plum Street, on the east by the Shields Street and on the south and west by existing development. 1.2 Description of Property J� The entire project consists of approximately 3.4 acres of land. This property currently has 6 existing residential buildings and parking lot. The land currently slopes to the north and southeast at a range of approximately 0.5% to 1%. The existing buildings will remain without modification. The proposed redevelopment consists two phases of improvements. Phase 1 includes the addition of parking at the south end of the existing buildings and a building remodel. Phase 2 includes the of removal of existing parking, construction of a single building on the east end of the site and replacement of a portion of the parking. The site currently drains into Plum Street and into Shields Street. It is not proposed to modify the area that drains to Plum Street; therefore this area was not reanalyzed. The area that drains to Shields is being modified and is therefore being reanalyzed with this report. 2. DRAINAGE BASINS AND SUB -BASINS 2.1 Major Basin Description The proposed development lies within the Spring Creek Master Drainage Basin. This site is not located in a 100-year floodplain or in a `Flooded Area' designated in Figure 4 of the above reference report. t 2.2 Sub -basin Description This site drains to Shields Street or Plum Street and is conveyed in the streets to the storm system. This storm system carries the water east and south under Shields Street to Spring Creek. .; 3. DRAINAGE DESIGN CRITERIA 3.1 Regulations This report was prepared to meet or exceed the "City of Fort Collins Storm Drainage Design Criteria Manual" specifications. Where applicable, the criteria established in the "Urban Storm Drainage Criteria Manual" (UDFCD), 1984, developed by the Denver Regional Council of Governments, has been used. 1 3.2 Development Criteria Reference and Constraints The runoff from this site has been routed to conform to the requirements of the City Stormwater Department. Because there is no increase in. impervious area on this site, Tdetention and water quality are not proposed for this site. The majority of the site will be routed to the southeast corner of the site and will be conveyed via a concrete channel and sidewalk culverts to Shields Street. The building, sidewalk area and the landscaped area on the east side of the site adjacent to Shields will discharge directly to the adjacent streets. The proposed building elevation was set by evaluating the maximum flow depth in Shields in a 100 year storm event and placing the building above,that flow elevation. Calculations are included in Appendix B. ' 3.3 Hydrologic Criteria Runoff computations were prepared for the 2-year minor and 100-year major storm frequency utilizing the rational method. All preliminary hydrologic calculations associated with the basins are included in the Appendix of this report. Standard Form 8 (SF-8) provides time of concentration ` calculations for all sub -basins. Standard Form 9 (SF-9) provides a summary of the design flows for all Sub -basins and Design Points associated with this site. 3.4 Hydraulic Criteria All preliminary hydraulic calculations within this report have been prepared in accordance with the City of Fort Collins Drainage Criteria and are included in the Appendix of this report. The sidewalk culverts and the concrete channel at the southeast comer of the site were sized to carry the 100 year storm event 4. DRAINAGE FACILITY DESIGN 4.1 General Concept All of the runoff from this site currently drains to the adjacent streets and is either collected in the storm system on Plum Street or Shields Street. Both storm systems convey the runoff to Spring Creek. There is currently no detention or water quality provided on site. It is proposed that- a similar runoff pattern be maintained with the redevelopment of the east portion of this site. r4.2 Specific Flow Routing Er A summary of the drainage patterns within each basin is provided in the following paragraphs. Basin 1 contains the existing east parking lot and the proposed building. The runoff from this basin currently flows to Shields Street via the drive entrances. These drive entrances will be removed with the proposed redevelopment and the water will be directed to the southeast corner of the parking lot, into a concrete channel and into Shields Street. City staff indicated that the 100 year anticipated flow in Shields Street is 68 cfs. This flow was entered into Flowmaster to show that the water surface elevation at the north end of the site is 27.29. The finished floor elevation of the building is proposed to be 27.50 to prevent flooding of the building. Calculations are in Appendix B. Basin 2 contains a portion of the existing buildings and parking lot on the east and south sides of these existing buildings. It is proposed to add twelve parking stalls in this area and reinstall a fire lane. Runoff from this basin flows east into Basin 1. Basin 3 contains the eastern half of the building and the existing and proposed walks and landscape between the building and Shields Street. Runoff from this basin will enter Shields Street directly via overland flow or minor sidewalk culverts. 4.3 Drainage Summary The existing and proposed drainage facilities located outside the right of way will be maintained by the site owner or the Home Owner's Association. 4.4 Variance Requests A variance is requested to allow the building to be set less than 18" above the flowline in Shields Street. The building finished floor is V minimum above the flowline in Shields • Street. 5. EROSION CONTROL 5.1 General Concept This site lies within the Moderate Rainfall and Wind Erodibility Zone per the City of Fort Collins Zone Maps. The potential exists for silt movement from the site and into Spring . 1 Creek. Potential also exists for tracking of mud onto existing streets which could then wash into existing storm systems. All erosion control measures necessary to minimize sediment transport have been shown on the Erosion Control Plan. The required performance standard for the site is 77.1%. During construction and after paving, this 1 figure has been exceeded with the use of silt fence and inlet filters on the sidewalk culverts. All erosion control calculations are included in Appendix D of this report. The erosion control escrow amount is $3105. 5.2 Specific Details To limit the amount of silt leaving the site several erosion control measures shall be E implemented during construction. All boundaries shall have silt fence installed and all streets shall be cleaned to eliminate mud being tracked onto the street. During demolition, disturbed areas are to be kept in a roughened condition and watered to reduce wind erosion. �t 5.3 Dust Abatement During the performance of the work required by these plans, the contractor shall carry out proper efficient measures wherever and as necessary to prevent dust nuisance, which has originated from his operations from damaging crops, orchards, cultivated fields and dwellings, or causing nuisance to persons. The Contractor will be held liable for any damage resulting from dust originating from his operations under these plans, on right-of- way or elsewhere. ,l- 5.4 Tracking Mud 1 Wherever construction vehicles access routes intersect paved public roads, provisions shall be made to minimize the transport of sediment (mud) by runoff or vehicles tracking onto the paved surface. The contractor will be responsible for clearing tracked mud on a daily basis. 5.5 Maintenance All temporary and permanent erosion and sediment control practices must be maintained and repaired as needed to assure continued performance of their intended function. Silt fences will require periodic replacement. Maintenance is the responsibility of the contractor. 1- 6. CONCLUSIONS 6.1 Compliance with Standards All computations that have been completed within this report are in compliance with the City of Fort Collins Erosion Control Reference Manual for Construction Sites and the Storm Drainage Design Criteria Manual. 6.2 Drainage Concept The proposed drainage concepts presented in this report and on the construction plans maintain the existing drainage patterns and the existing imperviousness for this site. Conveyance elements have been designed to pass required storm flows and to minimize future maintenance. If, at the time of construction, groundwater is encountered, a Colorado Department of Health Construction Dewatering Permit will be required. 6.3 Erosion Control Concept Since the site is less than 5.0 acres, a NPDES permit is not required. During construction, erosion control shall be. maintained to minimize erosion on this site and transport of silt downstream. 7. REFERENCES 1. City of Fort Collins, "Storm Drainage Criteria Manual", (SDCM), dated March, 1986. 2. Urban Drainage and Flood Control District, "Urban Storm Drainage ,Criteria Manual",.Volumes 1 and 2, dated June 2001, and Volume 3 dated September, 1999. APPENDIX A VICINITY MAP 9 L DATE: 12/3/03 SCALE: 1" = 2000' DESIGNED BY: TLN JOB NO.: 136-02 CAMBRIDGE LOFTS MINOR SUBDIVISION VICINITY MAP SHEET 1 OF 1 I ; North Star design, inc. 700 Automation Drive, Unit I Windsor, Colorado 80550 Phone: 970.686-6939 Fax: 970-686-1188 APPENDIX B HYDROLOGIC & HYDRAULIC CALCULATIONS 6 I�. �c U � C 'r O m LO N CO O O E U O U) In L Q -O 0 o c_ z oz m O m N U LU F- W 0 J O r m _ O C7 LL f O U LL LL LL 0 LL W. W N N z O O O O � U W LL Q O¢ U O N O LU0 z 000 a LL W LL O LL W rn rn rn O 0 0 0 � U U) LL =) O O a % W IN o C14 O Cl) o < W a W coi N Lr) O Q O O z 0 K z � N Cl) a U) W 0 U W H W Fn J o m (D 0 f o 0 0 O U zLL W N N CD O U O O O W LLo LL ¢ 0 U O w0 0a0 a g rn rn rn z W O 0 0 0 U O O W W O O ¢ a i J 0 W co Lq- co U) • a O � O z O WLL. a Czi N th w w I 7 U U y W a a a m 9 RJ 5 c n yO Z) U N az ti d _c > c p �co h N 0 co z 0 a a O o F F Fzo� o c Z V p U n m OwOa .7 A U m Y m f LL j 2 z m Q C m m 0 m Z •• 'E m vi vi ai iZ i C N m M m m Q n m � Y N U Z J W O m O u � - m O v v o Iq 3 E r o o r o E O N O t7 [V LL J W Z y d m m O O N N m 0 U1 N %j % YvS O C C 0 0 0 0 0 w A O o O C 0 W 2 7 m m N N m N a Oa a W f ~ J s 00 0 0 J v F v " E v Div ni v 6 o N O O N � O - - O L a J ❑ K U o o c o W O_ _ J m m m d Q W U r m r m r� c000 = H m m V m m c N z 0 z w a. z M QN = m �Q Ma N ❑ r i 1 1 1 1 1 1 1 1 1 1 1 1 i U � C cm 10 m C (D O MO 0 � o o U U) O N r ¢ -o 0 o c_ z o- z O LL m F K z o U o z a O o U Z `L O 0 W 2 F I Y �n �j II v� V K J Z U C 'E N O O N z •• vi vi vi n LL O o vi ¢ IU m w Y N Z J w Um `UU Imp K f. u � U + ' 0 0 n o o n o J LL I J W z y 4 m O U N O m N N 0 N Tj % N U A, 0 c 0 0 0 0 0 a A O O O O O w f F m N Cl! m Cl! U6 f � J s _ i �� MNOmN F Z E m 02° o 0 moo 0 0 m c J O U o 0 0 0 0 0 0 0 1, U W J n in n Q¢ W U mcomm f.2 ocoo z r d u N N C5 0 Z� (LD Z m p N m wa 0 z z m m ¢ m O �i i c U � C > ` O 1 0 Q LLB LO C) ._O Q E U @ o cn D o .c Q 0 o c_ Z r z ' LU `— w� O W ❑ w w ° 0 ~ IX in a v W u F cn p 0 'o R LU Q a d F a UJ Z� Y oz z �0 0 Q F q N C C N L U m m U Cn O Y U LL 0 L A LU N W •1 CY O C04 V U I N O Cl! L 1N CA 0 N _ M (O 00 N C N N N N U C_ u) 1n O co E (n in ui m U° o r'- m to m U U o 0 0 0 m (c L v U r co I- ao 0 0 O o co U to - CO � c � N (h N Q a) LL LL 0 z U LU 0 N 'C-0 N (h o a A 0 v i i 1 S U C > 'C O C Q l0 LO a) O cO N• EcoU L O L fn 5O Q 0 O C z n i a w w = ❑ a W ❑ U ti a A w w O p I-- i a a W �Ayj ❑ d cn . W O w a w ¢ � W¢ CL C) g U n. ❑ Q z 20 ir F O g H c c m L U d U U) p � U Q W � F m N r 'n Ir U CO m � cq � R O L N CD r N _ O m co 0] C a V 4 cn U C In to O t0 E ao viM of II co U o c n m 6 0 6 m w unv U rmrnw 0 0 0 0 U CO O LO C Q 0 N CO O O m c y y NM N Q N LL lL ❑ 0 z U W O c o a s cD 0 m A w z w O 0 .a p y w Q 2 ,-) c w C4 A d Cl) LL c°'n CY vFi E x aLU a F o _j U� aZ o a 2 O 0 H O O W O[~iA o�Qw H H W Oa A U cel C C N L U a� ar U C Y U Q � L LU 0: F� y Lq Lc) eq d �N�v) _ r- N M N _ CO) O) O) (O C 0) O) Q) co U C N O O N E v) u) v) r� II U N 0 0 0 0 U U r co (O () M U r-. Co. rr Co. 0 0 co O LO N CO U. LL O Z m c m NM N a Q U W z 0 N E O1 p N M o a i 1 1 1 t 1 1 1 1 1 1 1 1 1 1 1 Channel to Shields Worksheet for Rectangular Channel Project Description Worksheet Channel to Shiel Flow Element Rectangular Che Method Manning's Forma Solve For Bottom Width Input Data Mannings Coeffic ).013 Slope 1.00 % Depth 0.50 ft Discharge 15.70 cfs Results Bottom Width 4.93 ft Flow Area 2.5 ft' Wetted Perimi 5.93 It Top Width 4.93 ft Critical Depth 0.68 It Critical Slope 0.39 % Velocity 6.31 ft/s Velocity Head 0.63 ft Specific Enerf 1.13 It Froude Numb. 1.59 Flow Type , iupercritical a Project Engineer: Patricia Kroetch d:\haestad\fmwtcambridge.fm2 North Star Design, Inc. FlowMaster v6.1 [614n] 12/09/03 05:34:24 PM 0 Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 11 Cambridge House - Shields Street Worksheet for Irregular Channel Project Description Worksheet Shields small ba Flow Element Irregular Channe Method Manning's Formi Solve For Channel Depth Input Data Slope 0.95 % Dischargi38.00 cfs �S as � u(�00— Options Current Roughness Methc )ved Lotter's Method Open Channel Weighting I )ved Lotter's Method Closed Channel Weightinc Horton's Method ' Results Mannings Coefficier 0.016 Water Surface Elev, 27.29 ft <-- 14wEL" LO/©(Oo. Elevation Range 5.50 to 27.92 Flow Area 16.4 ft' Wetted Perimeter 53,06 It Top Width 52.80 It Actual Depth 0.79 ft Critical Elevation 27.36 ft Critical Slope 0.53 % Velocity 4.14 ft/s Velocity Head 0.27 It Speck Energy 27,56 ft Froude Number 1.31 Flow Type Supercritical 1 Calculation Messages: Water elevation exceeds lowest end station by 0.42480143e-1 ft. Roughness Segments Start End Mannings Station Station Coefficient 0+00.0 0+58.5 0.016 Natural Channel Points Station Elevation (ft) (ft) D+00.0 27.25 0+20.0 27,00 0+20.5 26.50 0+58.0 27.42 0+58.5 27.92 iProject Engineer: Patricia Kroetch d:\program fl1es\haestad\fmwbambridge_shields.fm2 North Star Design FlowMaster v6.1 (614nj 10/20/04 03:06:00 PM 0 Haestad,Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA (203) 755-1666 Page 1 of 1 APPENDIX C EROSION CONTROL CALCULATIONS Ll ` < ! \ A .. s( CO CN rr ..![ \ W ){ CS) o,o C04 0 ) [ mae m ■2 22 ?? ? 0 ` /( � . . � ■ �� . §{ j} �\n ] /\ k§ �u \0 (�� . ]}} & ) | /\| t%| . 7 .\ ) _ §2/ e0 §�} ®Q)00 '§ k § { \ )'o Jo /} qq\®© !) m�z\\ k c .0 Qjmjg \z! PA ' North Star Design 700 Automation Drive, Unit I Windsor, CO 80550 1� EFFECTIVENESS CALCULATIONS PROJECT: CAMBRIDGE HOUSE LOFFS STANDARD FORM B COMPLETED BY: PPK DATE: 21-Apr-04 EROSION CONTROL C-FACTOR P-FACTOR METHOD VALUE VALUE COMMENT BARE SOIL 1.00 1.00 SMOOTH CONDITION ROUGHENED GROUND 1.00 0.90 SEDIMENT BASIN 1.00' 0.50 ROADS/WALKS 0.01 1.00 GRAVEL FILTERS 1.00 0.80 PLACED AT INLETS SILT FENCE 1.00 0.50 STRAW MULCH 0.06 1.00 ESTABLISHED GRASS 0.08 1.00 STRAW BARRIERS 1.00 0.80 EFF = (1-C*P)*100 MAJOR - SUB BASIN AREA EROSION CONTROL METHODS BASIN BASIN (Ac) 1 0.58 BARE SOIL 0.00 Ac. ROADS/WALKS 0.45 Ac. SILT FENCE 0.13 Ac. SEDIMENT BASIN 0.00 Ac. ESTABLISHED GRASS 0.00 Ac. NET C-FACTOR 0.23 NET P-FACTOR 0.36 EFF = (1-C*P)*100 = 91.8% 2 1.26 BARE SOIL 0.06 Ac... ROADS/WALKS 1.11 Ac. STRAW MULCH 0.15 Ac. SEDIMENT BASIN 0.00 Ac. ESTABLISHED GRASS 0.00 Ac. NET C-FACTOR 0.13 NET P-FACTOR 0.38 EFF = (1-C*P)* 100 = 95.2% 3 0.15 STRAW BARRIERS 0.00 Ac. ' ROADS/WALKS 0.11 Ac. STRAW MULCH 0.04 Ac. SEDIMENTBASIN 0.00 Ac. ESTABLISHED GRASS 0.00 Ac. NET C-FACTOR 0.27 NET P-FACTOR 0.35 EFF = (IC*P)* 100 = 90.5% TOTAL AREA = 1.99 TOTAL EFF = 93.8% REQUIRED PS = 77.1 % i Erosion.xls ac _ (94.0%*29.77 ac. + .. +99.6%*0.40 ac)/1.14 ac 1of1 r North Star Design 700 Automation Drive, Unit I Windsor, CO 80550 CONSTRUCTION SEQUENCE STANDARD FORM C PROJECT: CAMBRIDGE HOUSE LOFTS COMPLETED BY: PPK DATE: 21-Apr-04 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. • 000©0©000©0© • :. • . - • -•. • • • • • ' • • - - •. • • • - • • ' - • • • • • • : . • • -.-11-1111111111111IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,II-IIIIIIIIIIIIIIII'IIIIIIIIIIIIII,1111111111111111111111111111111111111111111111111111111111111111111'lllllllllll, 9= -IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,II_IIIIIIII--11111111111111-�_II__ IIIIIIIII.IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,IIIIIIIIIII.IIIIIIIIIIIIIII,-___IIIIII-_ IIIIIIIIII■_IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,IIIIII--IIIIIII-I_III_IIII_I__ IIIIIIIIIIIII,11111111111111IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,IIIIII-IIIIIIIIIIIIIII,IIIIIII-IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,111111111111111,111111111111111, 1111111111111111 IIIIIIII-1111111111111111111111111111111,111111111111111, 1111111111■IIIIIIIIIIIIIII, -�� IIII-IIIIIIIIIIIII,IIIIIII-II_ -IIIIIIIIII■IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,III_I�IIIIII-___I__ IIIIIIIIIIII.I_--_ IIIIIIIII■ _ 1111111111111111111111- III_ IIIIIIIIIIIIIII, -IIIIIIIIIIIIIII,IIIIIIIII. _ IIIIIIIIII■ _IIIIIIIIIIIII1 _-_-_ -IIIIIIIIIIIIIII,IIIII-_IIIIIIIIIIII._-IIIII_I_I_IIII__ IIIIIII-IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,11111111111111IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,11111111111111_IIIIIIIIIIIIIII111111111-1111111111111111 IIIIIIIIII.-III'-III_IIIIIIIIIIIIIII,IIIIIIIII.---__ _IIIIIIIIIIIII'__II�IIIIIII--IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,IIIIIIIIIIIIIII,II_ IIIIIIIIIIIIIIII,_III_IIIIIIIIIIIIIII, -... . -H.:, .. 111111111111111, 111111111111111, 111111111111111, 111111111111111111111- STRUCTURES: INSTALLED BY: VEGETATION/MULCHING CONTRACTOR: DATE SUBMITTED: 10-Mav CONTRACTOR MAINTAINED BY: DEVELOPER TO BE DETERMINED BY BID' APPROVED BY CITY OF FORT COLLINS ON: Page 1 Cost Est EROSION CONTROL COST ESTIMATE Project: CAMBRIDGE HOUSE LOFTS Prepared by: PPIK ITEM IQUANTITY UNIT COST/UNIT IT07AL COST Silt Fence 590 LF $3 $1,770 Straw Bale Barrier 0 EA $150 $0 Gravel Inlet Filter 2 EA $150 $300 Construction Entrance 0 EA $550 $0 Subtotal Contingency(50%) Total $2,070 $1,035 $3,105 CITY RESEEDING COST Reseed/Mulch 1.8 ACRE 1 $650 $1,170 Subtotal Contingency (50%) Total $1,170 $585 $1,755 EROSION CONTROL ESCROW AMOUNT $3,105 a Page 1 APPENDIX D FIGURES AND TABLES 1 . 1 No Text I o 1 C, C) l 1 1 O I - 1 c t c�C)c- OnCccoCC I 1 1 G I cc ccL.^.L7LnLnLr.Ln I c I C C C C g C C co co co I 1 C1 CT CT C C1 C1 m CT m CI CT O OC Ln, L: . 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Z l h I M M C C CCCC CCCCCCCC Cc J i C co co co CC C CCCC co co p C CCG'CC CC CC�CX7q N N Cn c'7 M Cn 'CrC C C C CC I:t Ln to Ln t.n 1.0 %C V I to I t''IC"mCCccet-ccct•ccccccccccccccc O 1 3 0 I L. N Ln h C C O G.- -1 .- a N N N N N M M M M M C c c t eT L• t vin t N M M M MM CC CCCCCCCCCCCC cCC C' GT Q' C t W i C C C: g q q q C q Cq C C g q p C q q q C CJ C CC C O 1 C C I .-. C�-•IMCL^: to to tc CS C% CCC 00 ' I J c I N N f7 fn t+Y m C; cn Ci C4 C.; C4 M el;C4 M M C% M M M C C Q C Cn I Ln I C C C1i C g C p coC p qp qC C q C C CC C qq C C C CO C 1 1 C I O I tC LnC O.•-• N M 'Cr C Ln L:, Ln tO tO C tO tC r*, hh hgCC a.. Cn N N M MM MM M C;M C7 P•I Pf MC+* MC7 C+)Men, MM M M M Z I I C:I C C C g q p p C co pp g q co co co pC C C cn W 1 I . -.. 1 lL9 1 .-+."� In h C O C 1- N N cn C7 M Cc Cr c c L) Ln Ln t0 tO t0 h h N 1 1 1 M I. -. 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'.•-r.'.r.-I . *. * p co = cog p p p p C q q q p q W C C CA 1 Ln1 NNm MMM M I • 1 .••� 11 ti c; C: C CT CT CT CT CT CI CT CtOOOO (M C; C; O C; C; C CO 00 h h r., h h h t%lppgCQpQpgqqC.^,q CA CA 1 1 1 O 1 tO M O C' h Cn 4= M M C C Ln L7 Ln Ln %C tO t0 tO h h tO Lp b 1 1 . . . . . . . . . . . . . . . . . t,f�hhgp=co Cp Cb=w pCilp NCb =Cn 1 1 1 t17 1 ON Cto h w C h hh tO t0 tO Ln C:. c CM MN NCT to c.� Q1 t0 I O I OCAI N N N N N N N N N N N N CV N N N N N,O O ' 1 1 r%l 1\ 1-1 n h h h h h h h h hh h h h h h h n h h h h h I CO COOOCOOOO O C O O OC 0 O 00 O 0000 I CD cm I ooc0000a0000000000O000cc(=C� t JZL.L I .-1 CV mCL") tO hM C L) to hC fit 0L7OLn C Ln O N M M C C' Ln 1 1 1 1 I 1 l I 1 1 1 1 1 1 I . PAGE 23 ' TABLE 5.I Ezsmmc con EEMStes"I EX a' RETANNG MALL I I WEST PLUM STREET EXISTING SO 20 15 0 20 40 TI Rpi-Li-wAY — — SCALE I" - 20 5029 1 Imo, I J I I I L7 J II/.Evpa Nc 4aLRETE skills I M = E war Poll 00 i r EXISTING CAMBRIDGE 141 ._ HOUSE APARTMENTS F I� �� A9MALi — —� -- -- -- L — — OR _. T----- - -- —_ r—J Lyl I ke 7-1 Ll E L i' kil 1.26 0.64 I I _ 1 LL AaLwrx L - --_— 1 1 Li F J 1 Fj Raw I� in E _— __ EXIS➢Nc WIARORAIL TO REMAIN FFCPOYD S 1w PAN BE Al Eai R CAMPUS WEST COST 'W�aTO REMAIN Fri CONSTRUCTION 5EQUENCE auow a¢rv. o.wv sperms rse agpz,p Them>< ro..,.m a. m ua. LCa ME MY pas All AL w ocr m m Moll, an All, all WJ EMoll STANDARD EROCON AND SEmkENT CMTP s1RUC71ON PUN NOTES Spideri 2003 LIE 0 City of Fort Collins, Colorado U➢UTY PLAN APPROVAL A, DtACN PONT APPROKD: CITY En9lnew Geb _ 'C p B AN CRITERIA In 0.60 0. 5 YR RUNC£F COEmaENT CHECKED BY: w ab, A,wDapm. pb1<r Dm• y $ m m AEA INACREs .� a m O v ^ F'Ow DIRECTION CHECI(ED BY: stvmrgtw Utmty ovte V AD Q 0 m C do m Moll m m m m m RAN BaxDARY CHECKED BY: IL n ra © Porte k Recrevxm DataE_ al 0 8 X T FENCE CHECKED BT: a a' m O ® C STNULnaI ENTRANCE Tram, Englnea BY: Data N Sc ks C d LL CHECKED P Date Oo*� E 04CN BALES IPIF GET PROTECTION ' N ATON CALL TER I E ISTNC PIPES CENTER Or App CG.IXi 00-C ro III NG, CONTOUR1-800.922.1987 fpy ]-BUSNESSES BAYS p ADVANCE BEFORE YCU 016, CAV TE - - - - E STING 1' CWTWR GONE FOP ME MARE UNDER No ED MEMBER UTh1PE5. Q —AM P OPOSEO CONTWR p NOTES 11 REFER TO GRADING PLAN FOR REMOVAL OF Eini DAKMEMIG k CURB K5. 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V CONCRETE PAN uoryEAST BWxO(WEST MTFOF Kf - SF Ni NED UNT BU OINpAND ENTER WILK, WALKS ZA A T CMtl c AME El.JJ3 r— pxoposED vEPncu— CURB W/ v Pµ k AETE9 M'. SS' ATTACHED LOLEIL LPEY,IMG III lA a SF �hl a UL 0- O O custiOw2/02Of KywGL LLI Z PROPOSED P/��Ir I� 0 B�UILDI�Nei 6 try 50 I.HALF EXISTING PCnJ Y.--1 'gq � I ISM W Law s �$}y c � j I m L�JII III a Z a aRBPosm LERnrx 'I,. � I U Q RI' PAN w/ PAx a2 I � PRCVOsm YER9C LI CURB w/ Y PAN SHEET If SF F li _--_-- -� %ifPo3D Y METAL �I j sDEwuK m{Ew(T 5 OF 8 I1PC®Y YET O P W/ EwuK wLwT ..._ _.._._ I `m IIL II� don No. 136-02