Loading...
HomeMy WebLinkAboutSite Certifications - 01/14/2016L rl JVA, Incorporated W 25 Old Town Square l �2SGOcISuite 200 e(ease v Fort Collins, CO 80524 Ph: 970.225.9099 January 7, 2016 Fax: 970.225.6923 Toll Free: 877.444.1951 Mr. Wes Lamarque Web Site: 700 Wood Street www.jvajva.com Fort Collins, CO 80521 E-mail: - info@jvajva.com RE: Northern Colorado Feeder's Supply — Site Grading & Drainage Certification JVA PN: 2259c Dear Mr. Lamarque, JVA has completed review of the as-builts and completed the Certification Form'& Checklist for the. Overall Site Drainage for the Northern Colorado Feeder's Supply project; located at 300 Hickory Street in Fort Collins, CO. Based on our site visit observations and the topographical information received, the overall site drainage characteristics as constructed are insubstantial conformance with the approved utility plans and drainage letter. The constructed improvements to the site adhere to the design intent in regards to drainage patterns and storm conveyance features such as pans, channels, and chases as shown in the attached checklist and plans. Please contact us if you have any questions, or need any additional information Sincerely, JVA, INCORPORATED By: Brian J. Campbell, RE Regional Manager Enclosures: Executive Summary, City of Fort Collins Overall Site Drainage Checklist, Approved Original and As -built Grading Plans, Concrete Channel & Chase Capacity Calculations CC: Kevin Murray, Empire Carpentry Danielle Nater, Northern Colorado Feeder's Supply BOULDER I FORT COLLINS I WINTER PARK %\ JVA, Incorporated ",��■-,\'J�(■-,�''',' 25 Old Town Square Suite 200 ' Fort Collins, CO 80524 January 8, 2016 Ph: 970225.9099 Fax: 970.225.6923 Toll Free: 877.444.1951 Mr. Wes Lamarque Web site: 700 Wood Street www.jvajva.com Fort Collins, CO 80521 E-mail: info@jvajva.com Executive Summary: Northern Colorado Feeder's Supply — Site Grading & Drainage Certification This letter is intended to summarize the design of the Northern Colorado Feeder's Supply grading and drainage improvements and demonstrate that the constructed facilities are in substantial conformance with the approved plans and Drainage Letter for the Northern Colorado Feeder's Supply, dated August 26, 2014. I. Water Ouality and Quantity Detention Basin Certification A. Volume: N/A B. Water Quality and Quantity Detention Basin Grading: N/A IL Channels/Swales A. Capacity: As -built verification of rectangular concrete channels: Topographic records were provided by PLS Group, LLC Surveyors detailing the construf ted flowline and top of curb elevations of the two rect ° gular concrete channels designed to allow runoff from the site to flow into the eiisting curb and gutter in Hickory Street without draining over the driveway approaches. Manning's calculations for the as -built channels are attached herein and show they have capacity to convey the 100-year storm flows for the drainage basins delineated in the approved Drainage Letter. Constructed improvements are within substantial conformance with the approved plans. III. Storm Piues A. Storm Drain Pipe Capacity: N/A B. Storm Drain Pipe Installation Requirments: N/A IV. Concrete Pans A. Construction/histallation: Topographic records were provided by PLS Group, LLC Surveyors detailing the flowline and lip elevations of the concrete pan located at the top of the west driveway approach. Cross sectional dimensions and longitudinal slopes were verified with as -built shots and are shown on the attached redlined grading plan. Constructed improvements are within substantial conformance with the approved plans. V. Storm Drain Inlets A. Construction/Installation: N/A BOULDER I FORT COLLINS I WINTER PARK Northern Colorado Feeder's Supply — 300 Hickory Street January 8, 2016 Page 2 of 3 VI. Culverts A. Construction/Installation: N/A VIL Sub -Drains A. Construction/Installation: N/A VIII. Curb Cuts A. Construction: Curb cut dimensions at the openings of the sidewalk chases have been verified with topographic records and tie smoothly and cleanly into the gutter pan without obstruction. Constructed improvements are within substantial conformance with the approved plans. IX. Sidewalk Culverts & Chases A. Construction/Installation: As -built verification of sidewalk chases: Topographic records were provided by PLS Group, LLC Surveyors detailing the constructed flowline and top of plate elevations of the two sidewalk chases on the site. Manning's calculations for the as -built chases are attached herein and show they have capacity to convey the 100-year storm flows for the drainage basins delineated in the approved Drainage Letter. Constructed improvements are within substantial conform ince with the approved plans. X. Site Grading A. Construction: The original approved grading plan and redlined as -built grading plan have been provided- with this document. Constructed improvements are within substantial conformance with the approved plans. XI. Riprap A. Construction: N/A XII. Permanent Erosion Control Fabric A. Construction: N/A XIII. Post -Construction Site Cleanu A. Construction: Street sweeping and gutter cleanup has been performed regularly, and construction debris has been cleared from the site. Sod placement, landscaping gravel, and plantings have been completed and no reseeding or further stabilization is necessary. XIV. Certification of Other Permanent BMPs A. N/A Northern Colorado Feeder's Supply —300 Hickory Street January 8, 2016 Page 3 of 3 XV. Certification of LID and Water Quality Facilities A. N/A XVI. Certification of Erosion Control Measures A. All temporary erosion control measures have been removed from the site. Please contact us if you have any questions, or need any additional information. Sincerely, JVA, INCORPORATED By: Brian J. Campbell, P.E Regional Manager .. L Attachment 1: City of Fort Collins Overall Site Grading & Drainage Certification Checklist L Project Name: Northern Colorado Feeder's Supply Date: January 6, 2016 Building Permit Numbers: B1403158 (Commercial or multi -family) Per the requirement in Fort Collins Stormwater Criteria Manual (FCSCM) Volume 1, Section 6.11, please fill in all applicable items in this Certification Form for Commercial, Multi -Family and Overall Single Family sites. NOTE: several items must be verified during construction. A copy of the approved grading plan must be submitted with the as -built grading plan. (As -built elevations must be written in red next to the approved elevations.) G Use "Yes' for items completed as described. o Use "N/A" for items that are not applicable to the site being certified. o If any blanks are "No," attach an explanation referencing the item number below. Attach an explanation or description of the as -built condition for any items listed or for anything not listed but shown on the approved construction plans. Provide an as -built redline or Mylar drawing with the following: I. Water Quality and Quantity Detention Basin Certification - FCSCM Vol 2 Ch 10 For multiple detention basins on a site, provide the following for each basin separately: A. Volume: "^ As -built topographic verification is attached at 1-foot (or less) contour intervals and volume verification calculations for the water quality capture volume and the 100-year detention storage volume. 1. "^ Detention basin topography was prepared by a professional land surveyor registered in the state of Colorado. 2. '" Both proposed and as -built contours are shown on the same plan sheet (dashed lines for proposed and solid lines for as -built). 3. w^ All critical spot elevations as shown on the approved construction plans have been verified and the as -built elevations are shown on the plan sheet. 4. "" Stage -storage -discharge tables are provided on a separate document.. 5. ^ Verification that designed drain time is in compliance with Colorado Revised Statute § 37-92- 602(8) is attached and has been uploaded to the Statewide Compliance Portal (tinyurl.com/COComoliancePortal) for approval. Uploaded documents must include: a. The cover sheet from the approved drainage report b. The stamped certification page from the approved drainage report c. As -built topographic survey d. Stamped certification page from the Overall Site & Drainage Certification e. PDF output from the Stormwater Detention and Infiltration Design Data Speadsheet 12/15 Page 1 B. Water Quality and Quantity Detention Basin Grading: "" Attached is as -built verification that there is a minimum 2% positive fall into the concrete trickle pans or flow-line(s) from all areas in the bottom of the detention pond. If there is a "soft pan" in the flow -line, all areas still must meet the minimum 2% grade requirement. 1. Low Flow: Choose one of the following detention basin low flow options as applicable: a. WA Turf swale for low flow path in detention basin. There is a minimum 2% grade in the flow-line(s) of the detention basin. The flattest as -built grade is b. '°" Concrete pan for low flow in detention basin. There is a concrete pan installed that meets the grades as shown on the approved_ construction plans. (Show as -built spot elevations.) C. "'" Soft pan for low flow in detention basin. o Verify and document the soft pan material gradation, trench width and depth - to be verified during construction by engineer. Picture documentation is preferred or engineers statement of visual inspection and compliance. (Choose one below.) o "I" There is a soft pan with an underdrain installed that meets the design on the approved construction plans. (Show the underdrain grades, bedding material, geotextile, spot elevations, bends, cleanouts, etc.) o "'" There is soft pan installed without an underdrain but there is a type A or B soil. The soil type must be documented by supplying verification from a registered professional geotechnical engineer. WI TE: Spot elevations are to be within 0.2 ft. +/-. 2. Side Slopes: "' The as -built side slopes of the detention basin have been calculated and are shown. Indicate the side slope with an arrow and a numerical value (e.g., 6.25:1). The maximum slope allowed is 4:1. Small areas of 3:1 may be acceptable, but slopes steeper than 3:1 must be stabilized or re- graded. Provide documentation if a variance was granted for steeper slopes during the design process. 3. Spillway Certification: The following items must be field verified: a. "'" The location of the spillway is indicated on the as -built plan. b. "'" The width of the spillway is indicated on the as -built plan. c.. The elevation(s) of the spillway is shown on the as -built plan. d. 'A A concrete ribbon defines the location and grade of the spillway. e. "'" There is downstream scour protection in the spillway as per the construction plans. Indicate type: (riprap size "D50" gradation and bedding type, geotextile, buried riprap with inches of bury, etc.). f. W" There are no obstructions in the spillway, such as trees, bushes, sidewalks, landscape features, rocks, etc. 12/15 Page 2 4. Outlet Structure Certification a. W" The orifice plate for the approved release rate is installed with the correct size and location of the orifice. b. w" The orifice plate for the water quality outlet is installed with the correct hole size, number of rows and columns of holes. c.. The bottom hole on both the water quality and quantity outlets are at the bottom of the plate so no water ponds in front of the plate. d. w" The well screen is the correct material and is installed as shown on the construction plans. e. W" 100-year overflow grate elevation is (Elev. A on detail D-46) f. W" The top elevation of the water quality capture volume is (Elev. B on detail D-46) g.. Overflow grate is made of the correct material, has the correct bar spacing, is hinged at the top and bolted at the bottom. h. — The bottom of the outlet box has no obstructions or misalignments that will cause it to retain runoff water and is sloped at 2%towards outlet. II. Channels/Swales - FCSCM Vol.1, Ch.7 Sect.3&4 A. Capacity: " The as -built capacity of all the major channels and swales has been verified. They meet or exceed capacity requirements shown in the approved drainage study for this project. 1. " All swales are located within the drainage easements as shown on the construction plans. 2. " Longitudinal slopes and side -slopes (cross -sections) have been verified. Design criteria requires longitudinal slopes of 2% min. (on vegetated swales) and side -slopes no steeper than 4: . If these criteria are not met, the certification engineer will write a justification and propose mitiJsation for each instance or have the issues corrected. If variances to these criteria have previously been approved and are shown on the construction plans, no justification is needed. 3. "" As -built spot elevations on channels/swales are shown that correspond to spot elevations shown on the approved construction plans. 4. — All permanent erosion control measures are installed as shown on the approved construction plans (e.g., drop structures, riprap, TRMs, etc.). (Include pictures and verification of the materials used as part of this verification.) 5. "" All pans, curbs, storm pipes or other appurtenances appropriately tie into each other in the system. (Pictures at tie-in points suggested.) 6. "'" The minimum freeboard is provided for all channels and swales as shown on the approved construction plans or as identified in the approved drainage study. (Show the freeboard provided on the cross -sections as on the construction plan set or attached as separate documentation.) 7 "" The low flow portion of all channels or swales is clear of obstructions. (No landscaping, trees, shrubs, sod, etc. infringe on the low flow portion of channels or swales.) J 12/15 Page 3 III. Storm Pipes (aka storm drains) - FCSCM Vol.1, Ch.6, Sec. 4 A. Storm Drain Pipe Capacity: N/A The as -built capacity of all pipes installed on this project has been verified and meets or exceeds the capacity requirements shown in the approved drainage study for this project. 1. N/A All storm drain pipe sizes and materials have been verified and are in conformance with the . approved construction plans. (Indicate on the plan and profile sheets that they have been verified.) Material and size substitutions must be approved prior to installation. If a pipe size or material was changed during construction, the certification engineer must attach the approval documents or supply them with this certification. Approval documents must include a calculation documenting the capacity equivalency (equal or greater) of the substituted size. 2, N/A The longitudinal slope of the pipe is as shown on the approved construction plans. The acceptable minimum slope is 0.4%. All slopes flatter than the designed slope on the construction plans must be justified with capacity calculations on an attached sheet. 3. N/A The as -built invert elevations have been verified and are shown on the plan and profile sheets of the approved construction plans. B. Storm Drain Pipe Installation Requirements: N/A All pipes are installed in accordance with the approved construction plans. 1. N/A The minimum cover requirements for all pipes have been met as shown on the approved construction plans. These will be called out in critical locations. 2, N/A All encasements and clearances as specified on the approved construction plans have been met. 3. N/A Any specific joint types or arate construction methods specified on the approved construction plans I have been met. (List on a sepsh et and attach to this certification.) IV. Concrete Pans - FCSCM Vol.1, Ch.7, Sec.4.1.3.4 A. Construction/installation: " All concrete pans have been constructed in accordance with the approved construction plans. I. Y. The concrete pans are the correct size/width as shown on the approved construction plans. 2. Y' The longitudinal slopes of the pans are as shown on the approved construction plans. The certification engineer must justify or mitigate longitudinal slopes less than the minimum of 0.4% unless a flatter slope was approved and is shown on the approved construction plans. Provide mitigation or justification by separate document. 3. "" The cross-section of the pan is as shown on the construction plans. (Specifically, the pan cross- section is "V" shaped and meets the side slope shown on the detail.) 4 " The concrete pans are a minimum of 6 inches thick without reinforcement and a minimum of 4 inches thick with a minimum of 6X6-W14xW14 reinforcement per detail D20B and D20C. (Provide documentation of the reinforcement used if different than shown on the details or on the approved construction plans.) 5. Y' The spot elevations shown on the concrete pan(s) have been verified and are shown on the as - built drawings. 12/15 Page 4 V. Storm Drain Inlets - FCSCM Vol.1, Ch.6 Sec 3 A. Construction/Installation: " All storm drain inlets have been constructed in accordance with the approved construction plans. 1. "'" The size and type of inlets are consistent with the inlets shown on the approved construction plan. Indicate by writing "Verified" on each inlet on the plan sheet or list on a separate document the inlet number(s), type and size. (length). If the inlet installed is other than the one on the approved construction plan detail sheet, provide the name and source of the detail with justification for equal or better capacity. 2. "" The size of the inlet opening is consistent with the approved detail. (Check height and width.) 3. w" The elevation of the grate (if applicable) is at the elevation shown on the street profile or as indicated by a spot elevation on the construction plans. 4. — The as -built invert elevations of all pipes entering and leaving the inlet are shown on the plan and profile sheets within construction tolerance of 0.2 feet. If substantially different, provide justification and capacity calculations to show the capacity is not affected or propose mitigation. 5. "" The as -built size of the inlet box is as shown on the construction plans or an explanation or justification is attached. 6. "'" All inlet covers are stenciled or stamped with the following designation: NO DUMPING — DRAINS TO POUDRE RIVER. VI. Culverts - FCSCM Vol.2, Ch.9 A. Constr' ction/Installation: 'A All culverts have been constructed ad/or installed in accordance with the ap{ roved construction plans. 1. W" All culvert sizes have been verified as indicated on the as -built construction plans as correct. 2. "" The culvert material type for all culverts installed is as on the approved construction plans and is indicated on the as -built plans. 3. "" The as -built invert "in and out" elevations have been verified and are indicated on the as -built construction plans. 4. wA The culvert headwalls or wing walls have been installed as shown on the approved construction plans. Headwalls or wing walls may be needed in the as -built conditions onsite if the slopes adjacent to the culvert are greater than 4:1. Please note areas needing stabilization in the certification narrative. An alternative to consider is a turf reinforcement mat (TRM). VII. Sub -Drains A. Construction/Installation: " All sub -drains shown on the construction plans have been installed in accordance with those plans. Sub -drains installed with the sanitary sewer are to be verified on the sanitary sewer plan and profile sheets of the construction plans. (NOTE: Indicate any sub -drains installed after the plans were approved on the as -built plans.) 1. "" The size of the sub -drains are as approved on the construction plans and are indicated on the as - built plans. 2. wA The type of sub -drain, in particular the perforated and non -perforated sections of the drain, are as indicated on the approved construction plans. 12/15 Page 5 3. "'" The cover requirements per the construction plans are provided. 4. " The cleanouts have been installed at the locations shown on the construction plans and are accessible for cleaning. (Cleanouts can be buried a maximum of 6 inches deep with their locations marked.) 5. w" The backfill materials for sub -drains are as shown on the approved construction plans. (This includes the type, depth and width.) 6. The geo-textile liner completely wraps the sub -drain and the permeable backfill material unless shown otherwise on the approved construction plans. (Sub -drain pipe wrapped in a sock filter material is accepted only if approved prior to installation.) VII1. Curb Cuts A. Construction: All curb cut openings are constructed in accordance with the approved construction plans. I. '" The size (width) of the curb cut opening is as shown on the approved construction plans. 2. '" The curb cut openings tie into a downstream swale, pipe, or other appurtenances with a smooth transition and there no obstructions such as riprap or sod impeding the flow downstream of the curb cut. IX. Sidewalk Culverts & Chases A. Construction/Installation: "" All sidewalk culverts have been installed at the locations shown on the approved construction plans. 1. '" The size (width and length) of the culverts are as shown on the approved construction plans. 2. The cover plate is a minimum 5/8-inch galvanized plate bolted to a galvanized angle iron per the detail shown on the approved construction plans or per the City's detail. 3. '" The sidewalk culvert invert "in and out" elevations have been verified and are indicated on the as -built plans. 4. '" The sidewalk culvert opening is as shown on the approved construction plans or per the City's detail. 5. '" There is a smooth transition both on the inlet and outlet ends of the sidewalk culvert with no obstructions such as riprap or sod impeding the flow into or out of the sidewalk culvert. X. Site Grading A. Construction: All common open spaces have been graded in accordance with the approved construction plans. 1. '"" The grading on all common open spaces bordering private lots has been verified as correct and the as -built rear lot corner elevations have been shown on the as -built plans: 12/15 Page 6 2. " The as -built contours for "overlot grading" are shown on the as -built construction plans for all common open spaces, tracts, outlots; etc. If not in compliance, please attach a narrative describing the situation for noncompliance and when it may be corrected. An escrow for overlot grading may be required. (NOTE: Residential Lot Grading Certification is a separate process from this Overall Site Certification. It is understood that residential lots will be brought to final grade once the foundation is backfilled so they may be lower than the plan shows at this Overall Site Certification stage.) 3. w" All turf reinforcement mats (TRMs) have been installed as shown on the approved construction plans and the slopes are stabilized. XI. wrap - FCSCM Vol.l, Ch.7 Sec.4.4.4 3 A. Construction: w" All riprap has been installed in the locations and sizes indicated on the approved construction plans. XII. Permanent Erosion Control Fabric - FCSCM Vol.i Ch.7 A. Construction: ,'A All fabric has been installed in the locations and sizes indicated on the approved construction plans. 1. W" All fabric was installed per the details on the approved construction plans. XIII. Post -Construction Site Cleanup - FCSCM Vol.3, Ch 7 A. Construction: '' All construction debris and obstructions of any kind have been removed from drainage paths. 1. "" All construction debris has been removed except in staging area(s). 2. All ruts have been smoothed out in all construction areas. 3. w" All areas needing reseeding have been identified and future stabilization goals have been coordinated with the Erosion Control Inspector and in accordance with FCSCM Vol.2 Chapter 12. Note the area needing stabilization in the narrative. XIV. Certification of Other Permanent BMPs - FCSCM Vol.2 Ch.8 Sec.2 & FCSCM Vol.2 Ch.12 A. " The construction of channel drop structures is in accordance with the approved plan both in location, horizontal dimensions and cross-section. XV. Certification of LID and Water Quality Facilities - FCSCM Vol.3, Ch 4 A. " Attached are the During Construction Inspection Checklist for Low Impact Development (LID) and other items to be verified during construction, along with pictures and other required documentation. 12/15 Page 7 XVI. Certification and Erosion Control Measures A. All temporary erosion control measures shall be removed upon stabilization. If at the time of preparing this certification there are any erosion control measures still remaining on the site, please note them in the narrative and verify that they need to remain at this time. If in doubt as to the need for any control measure, please consult with the Erosion Control Inspector at 970-221-6700. XVII. Statement of Compliance A. This certification is signed and stamped. By signing this form, the engineer(s) attests that he/she has visited and observed the site, and to the best of his/her knowledge, the as -built conditions of the drainage facilities are as described in the above form and in the enclosed as -built plans. B. Failure to properly disclose all known information could result in the rejection of this certification and prevent the release of any and all Stormwater Utility permit holds on Building Permits and/or Certificates of Occupancy within this development. XVIII. Signature and Stamp by a Colorado -Registered Professional Engineer Engineer's contact information: Name: Brian Campbell, P.E. Email: baampbell@jvajva.com Phone: 970-225-9099 Company: JvA, Inc. Address: 25 Old Town Square Suite 200 Fort Collins, CO 80524 m PE Stamp Sign and date Foi t Collins uwrk: 12/15 Page 8 Attachment 2: Original Approved Grading Plan for Northern Colorado Feeder's Supply O th e v e • 0 � EXISTING 4 ■ STORAGE BUILDING I 10 REMAIN e EXIS11 OATC o - 10' Y5' CONCRETE PAD -� e FOR GRAIN MU- e� 41I ® 7831�'� �]B 75 e 0 PROPOSED v � • l \ VAN ACCESSIBLE Iy ® PARKING STALL { S 2X { • Ex)STING - � � 7a.20 ,i� VALLEY STEEL STORAGE BUILDING 2x [• �Itl 3E UE :'■ AND WIRE e TO REM" 7822 IWAX-1 l bl I 0 - NEW zx.I 2 0 R OFFICE/RETAIL ® I BUILDING "i PROPOSED LANDSCAPE — EXIST OFFICE BUILDING APPROx. 1 7861 ME AREA (RE, LSCAPE) ■ TO BE REMOVED FFF4919I 9.01 ME � — — — — — — — — — — i f' M0C PEDESTRIAN ® ^ ^ ACCESS SIDEWALK • / 1 72' ORNAMENTAL METAL N (2) SURGING ACCESS ' 7840 ME I 1 I/PI GATES AT DRIVEWAY APPROACHES 7811 FG-ME 1839 Tl 7fi.N2 ME VVV J1.86 ME - •* I 7175 BW per/ 7847 ME IB d7 BW I A98 SIC ` 17.95 FC-MF _.. •� .. 7896 8W� { 7785 ,BW� Il rJ]l6 FL GENERAL NOTES: 1, CONIRACTDR IS RESPONSIBLE FOR ALL SURFACE REPANR/REPLA011ENT TO RESTORE SIDEWALKS, ASPHALT. CURB/GUTTER SECINXNS AND SOD AREAS DISTURBED BY NEW WORR- i EXISTING CONCRETE AND ASPKhT PAVMG SHAL BE SAW CUT AND REMOVED PRIOR TO EXCAVATION. REMOVE CONCRETE SIDEWALKS TO NEAREST MST, 3. CONTRACTOR TO PROM AL NECESSARY EROSION CONTROL DURING CONSTRUCTION PLACE EROSION CONTROL PROTECTION AT ALL EXISTING MLE 15 DOWNSTREAM FROM TIE CONSTRUCTION AREA EROSION CONTROL PROTECTION SHALL REMAIN IN PLACE UNTIL CONSTRUCTION IS COMPLETE AND ALL DISTURBED GROUND IS ADEOUATELY VEGETATED WITH OWNER'S APPROVAL FOR REMOVAL. 4. COORDINATE DEMOLIBON REOOREMENTS, LINTS OF DEMOLITION, SAVAGE ITEMS, PROTECTION O ITEMS TO REMAIN, TREES, FENCING, ETC. WITH DINER, ARCHITECT, ENGINEER, AND RELEVANT CONSTRUCnON OR PHASNG PLANS. ADDITIONAL DEMOLITION O PAVEMENT, TREES, UTILITIES, STRUCTURES, ETC, 70 BE PERFORMED AS REWIRED. 1 °�LNc�s EV L.7 O 00 �1w0 Q O En¢0� OV)>o U map Z fxOU R: W U vi wq�z J aw°o O O L, ,IMMr71fIF �y.. tr=� I�i1F'� DIY i'��'�Il rio ll� scAEwFE[T NO7 EW ' 7844 BW _ 1 7995 tC ME 7931 BW 7769 FL CHASE 7B 22 FL -ME 7032 TC 78 27 TOP Bw City of Fart Collins, Colorado 7919 Tc - 7765 FL -ME UTILITY PLAN APPROVAL ` IB.Bd BW 1782 FL -ME J8O BW-uE 18.69 R-WE - IB12 !C 7772BRZME 7789 TC-ME I APPROVED `w,`,"T''_—_ 3L i CkfiASE 7 8.6B TOP BW_ _---___________.____ _ _ _ _ ___ __---_____J CIEG(ED BY. 78.M FL -WE HICKORY STREET c ECKEDBY _����� J/�WJiS pmneaa obH — e.a " CwCKE.D8Y CIECHEDBY N� _ ---- CIECKED BY CIECKEDBY '... , OI�Sr,il! C-3 234� Attachment 3: As -Built Grading Plan for Northern Colorado Feeder's Supply o r_FEIERAL NOTE Fh 1. CONTRACTOR IS RESPONSBtE FOR AL SURFACE PEPALR/REPLACEYENT TO m A C•.d - RESTORE SIDEWAYS , A9HAI., CURB/COTTER SECTIONS AND SOD AREAS £ DISTURBED BY NCW WCiK. IrjII 2. EXISTING CONCRETE AND ASPHALT PAYING SHA)E BE SAW CUT AND • 8 f REMMO ED PRIOR TO EXCAVATION. REMOVE CONCRETE 40EWAVS TO F NEEST ANT, 41 \Y 3 CONTRACTOR i0 PRONDE ALL NECESSARY EROSON CONTRA DURING x F B+ \ - CONSTRUCTION. PLACE ER09M CONTROL PROTECTION AT ALL EXISTING 'p INLETS DO2MSTREAM FROM THE CONSTRUCTION AREA, EROSION CONTROL pp ___ PROTECTION SHALL REMAIN IN PLACE UNTIL CONSTRUCTION IS COMPLETE _-1 AOno !lllla 3 R \ * AND ALL DISTURBED GROUND IS ADEQUATELY VEGETATED WITH OWNER'S f ,.!!S!R!!I _! l SOlalLr— APPROVAL FOR REMOVAL. m R A. COORDINATE DEMOLITION REWIREMENTS, LIMITS OF OEMOLIBON, SALVAGE �e ITEMS, PROTECTION OF IIEMS TO REMAIN. TREES, FENCING, CTC WITH e OWNER, ARCHITECT. ENGINEER. AND RELEVANT CONSTRUCTION OR PHASING • PLANS. MOI1NWµ DEMOLIRON Of PAVEMENT. TREES, UTAITIES. STRUCTURES, ETC. TO BE PERFORMED AS REWIRED. — — — — — — — — — — — — — — — — — L7 • • • m EXISTING Q U • . STORAGE BwIOINc I •:_ P 7EMTIG TO REMAIN Z GATE C < 0A 10'a25' CONCRETE PAD Y H z <C W° FOR GRAIN WILL W L Z o o 0 1 ® 7832J �7826 I 0 v / N PPaPO'�FD� O E Q EXISTING 8,2Dr ■ VALLEY STEEL 11 � Ln IXAW STORAGE BUILDING 2% 1• r78 M ME ",,r,,���� AND WRE TO REMAIN 7822 [MAX..= / _ / I �'Im O O O O ' I VI ■ z �x0 NEW k 2% (x W U En OFFlCE/RETAIL `.WAX W Q X K ® BUIL1RDING ''I PROPOSED LANDSCAPE `■ O -� - ♦ EXIST OFFTO ICE R G fFC.ICA �'.-1 70.61 ME AREA IRE: ESCAPE) .7, a/ (1+ Eh O O ♦— — — — — — — -- r 29C1 ME S 4' WOE PEDESTRIAN O ♦ ACCESS 90EWAIK PROPOSED 72' OWAMENTµ METAL \\ ,- FENCING WIN 2 SOING ACCESS ■ `pl V I LAjEG Ai DRIKWAV APPROACHES IBBS 7669 a&a0 ME - 1 -, iA .. ■ ^f { �Q♦If ` e s 61P FC ME 7871 TE ) .1 ME )66 ME �) 3 ........��?11 ? ME BW �i IJ90 ME BW • .. K )968 BW : -TT33 BW o )i Bt PL FG ■ l—x Jw�-- uE "EXa T952T Bw7 Fl CNhsE 6 IC -ME .p3F BW 2 TC )8&) ICP BW Je 0. ]R J5 Jd AG a8i2 FL -YE JBA6#B44 TC JB 88758482 R-NE FL-0p]02 - ir<-ieic-Jes+ew-MEB..-ME )B &1iB-J; ]R 1l4J-J2 FL -ME }}BB iC-MEC�- - i80T _ HICKORY STREET 2� 0 20 A SCALE AN FEET City of Fort Collins, Colorado UTILITY PLAN / APPROVAL; APPROVED 1_�*. cIIDCKEDer. - YIIrr '-- aM Mtl. CfffCNEp BY _ ..A.. 'I �K E.Y imn.wW Mb INW GHEGtED BY AI14 t71ryc F^P^+.� AN CHECKEDBY &VAT P.I..wR,.^•�..,m IMb CFECKED BY �JF1 �� Enr.oury:oi s,✓.e6! CFECKED HY !bW 5 74 O ELI 0 ✓. O z = KRB K UJ HJC C 1,0 (n 91/26/15 C-3 2340 Attachment 4: Capacity Calculations for Concrete Channels&Sidewalk Chases • J • `II i I r J NoCO Feeder's Supply - East Concrete Channel Worksheet for Rectangular Channel Project Description Worksheet East Concrete Channel Flow Element Rectangular Channel Method Manning's Formula Solve For Discharge Input Data Mannings Coefficient 0.013 Channel Slope 0.006000 ft/ft Depth 0.45 ft Bottom Width 2.00 It Results Discharge 3.65 cfs Flow Area 0.9 ft' Wetted Perimeter 2.90 It Top Width 2.00 ft Critical Depth 0.47 ft Critical Slope 0.005294 ft/ft Velocity 4.06 ft/s Velocity Head 0.26 ft Specific Energy 0.71 ft Froude Number 1.07 Flow Type . Supercritical u Project Engineer: Kevin Tone untitled.fm2 JVA, Inc FlowMaster v7.0 [7.0005] 01/07/16 03:18:13 PM ©Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Page 1 of 1 NoCO Feeder's Supply - West Concrete Channel Worksheet for Rectangular Channel Project Description Worksheet West Concrete Channel Flow Element Rectangular Channel Method Manning's Formula Solve For Discharge Input Data Mannings Coefficient 0.013 Channel Slope 0.010000 ft/ft Depth 0.41 ft Bottom Width 2.00 ft Results Discharge 4.11 cfs Flow Area 0.8 ft' Wetted Perimeter 2.82 ft Top Width 2.00 ft Critical Depth 0.51 ft Critical Slope 0.005338 ft/ft Velocity 5.02 ft/s Velocity Head 0.39 ft Specific Energy 0.80 ft Froude Number 1.38 Flow Type Supercritical Project Engineer: Kevin Tone untitled.fm2 JVA, Inc FlowMaster v7.0 [7.0005] 01/07/16 03:17:30 PM ®Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Page 1 of 1 NoCO Feeder's Supply - East Sidewalk Chase Worksheet for Rectangular Channel Project Description Worksheet East Sidewalk Chase Flow Element Rectangular Channel Method Manning's Formula Solve For Discharge Input Data Mannings Coefficient 0.013 Channel Slope 0.004600 ft/ft Depth 0.45 ft Bottom Width 2.00 ft Results Discharge 3.20 cfs ' Flow Area 0.9 ft' Wetted Perimeter 2.90 ft Top Width 2.00 ft Critical Depth 0.43 ft Critical Slope 0.005256 ft/ft Velocity 3.55 ft/s Velocity Head 020 it Specific Energy 0.65 ft Froude Number 0.93 Flow Type Subcritical Project Engineer: Kevin Tone untitled.fm2 JVA, Inc FlowMaster v7.0 [7.0005] 01/07/16 03:14:43 PM ® Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Page 1 of 1 NoCO Feeder's Supply - West Sidewalk Chase Worksheet for Rectangular Channel Project Description Worksheet West Sidewalk Chase Flow Element Rectangular Channel Method Manning's Formula Solve For Discharge Input Data Mannings Coefficient 0.013 Channel Slope 0.007700 ft/ft Depth 0.41 ft Bottom Width 2.00 ft Results Discharge 3.61 cfs Flow Area 0.8 ft' Wetted Perimeter 2.82 ft Top Width 2.00 ft Critical Depth 0.47 ft Critical Slope 0.005290 ft/ft Velocity 4.40 ft/s Velocity Head 0.30 ft Specific Energy 0.71 ft Froude Number 1.21 Flow Type Supercritical Project Engineer: Kevin Tone untitled.fm2 JVA, Inc FlowMaster v7.0 [7.0005] 01/07/16 03:13:29 PM ®Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Page 1 of 1