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HomeMy WebLinkAboutSite Certifications - 04/04/2013North Star aeow design 700 Automation Drive, Unit I Windsor, CO 80550 Phone:970-686-6939 Fax:970-686-1188 March 29, 2013 Glen Schlueter City of Fort Collins Stormwater 700 Wood Street Fort Collins, CO 80522 RE: Drainage. Letter for Camp Bow Wow Dear Glen, rm n (,)/% t/Il I In i t I - This letter is to document the sizing calculations for the proposed storm pipe along the west side of the building at 4103 South Mason currently occupied by Camp Bow Wow. Pet enclosures were constructed on the west side of this building which eliminated a swale that conveyed runoff north to the detention area. The owner has been required to provide an alternate conveyance and has chosen to install a storm system (inlet and 2-10" pipes). Attached is a sketch showing the basins that were assumed in the sizing calculations. Also attached are calculations showing the quantity of flow anticipated from these basins and the calculations for the storm sizing for the onsite system for a 100 year event. I appreciate your time and consideration in reviewing this submittal. Please let me know if you have any questions or if you require additional information with this minor amendment. Patricia Kroetch- Project Manager O wwa 0 oa hzzw U LLLLw O U LLLL O Z7Ix m z j OO U zz OFE c o N m g N U Z) Q^ 0. m o 040 N N t ¢ a 0 o c ZoN 0 o o 0 oo0000 n rn rn.v E zO FZWUZ0U LLO W 2 r Y K 1' J Zy C Q^ 1 O IL Z O wyNUZ N m 7 0 N LL Q QJW Z SU 0 C mm k U r W O m o 0 J L W J W ma o 0F p o Sy U3, o 0 5 LmJW „ J v JaF_ Z o m U n t0c No d U N NN 7 y v4 O m Z a m N m7N z rU_ ZmQ N w LLp o O o N ZJ C0 r 0 LL p U x F N m C9 a a m U p W LL E LLLL 0 zM Y QW . a W 0 Q O W WC v J Q z 0 H rm z zzp p U pwa. U yYR' Q wWC tiAQ y U mc J N m fOf U 6 b O r7 Q v bO L O Naa E m r LLO N U o 0 Wrc0 Q N t+l N O O z m- N z F0ZNO N w a0 a_ U a LLLL O Z7d' Y Q_ a Ow 0 Q O} WW Q v J Q2 O Q c 7 NYK6fwrc T Y U mc Ja F N N N 0 t N r O L O tp C m m ZJ r n U U o C Wrcs O O zw m N Z rC9Z w o. 0 0LO CD C) Ci o q LO CD L) Oj D E C) 0 C, 0LO 0 C) C) C) 0 Ld v c; qr 0 ZET- k\\ E\.\ u f.§ o o40 }) (\\\ Dj o » a 5 a : 0 0 O {\{ z o Zf— GOA a 2 E jO E 2 x k§ o toONEN OUTLET NwJ•.w WE WALL FOUNDATION IN MIS AREA i0 ALLOW FOR PPE NSTALIATON. MINIMIZE FOANDAngI REMOVAL TO ME GREATEST EXTENT POSABIE. ti EXISTING BLOB{ WALL NM CONCRETE FWTNO 4099 EXISTING ELOMVNE M GASSED SWALE r net I r w.o• 1 ---- 1/ EMSnNG BNLYNG PRS03TI MUST NwwDNSTALLCONCRETE HEADWALL k WMV TAPES L BURIED RIPRAP AT OUTLET MVOSFD MK.. 60811, IV TC £fl 35 AT GSDR SLOPE. LASS 0 BEDDING 1n 2D D m SKAI 10 CALL UTAUTY NOTIFICATION CENTER OF COLORADO 1-800N9221987 L 2-b19 DAn N ADVANCE WM YOU M. G IDE. ME EXCAVATE FOR ME mP w OF UrQER mm MG10ER uTunEs RE HSTE PIK "STALL 5 NEFCED Rest v-11-1_l_1-11111_LLLz PRRa4D AKA INLET GIVE.42w1 NW WA5 42.59 EMSPHG RONINE N LGN m A OANEENAHGRATER-3348 2Y(24') Olt APPROVED OTHER 5 PLAN VIEW SECTION A -A GENERAL NOTES I. MAINoN 2 MINIMUM CLEMANCE FROM STEEL TO EDGE OF CONCRETE PLACED AGAINST EARTH, AND 2' MINIMUM CLEARANCE FROM $TER TO EDGE OF CONCRETE PLACED AGAINST FORMS. so C I'-D SECTION B-B rNK0G19R D^RW wrMATMrIrm lRaNwxSIONESUEIFwPawroeEOLalnEa maDr GLNL aE w ALCCMNILE ro VINCIINUIFATREYAMIi GWIRBIMLLH VRMIFDNRI4E. OPBOFEMiCbEORCMP WILBE NETNIIA> Fa M90.ENm OF ORGR iO EXP09EliANCGIpt YtlWLLERTI` II NTENIEWIEMLR Om Mono! O•BMILW BYWEING RHOHEII TOREK 71.10) 12 mM • e- SSW E a1R x TVPEL m1m is SEEM Ix T bW • bMx TE Is Som 12 2.18 4 We 4REbro N u NW is a rose1P in 4Mom 12 B 2Ew 12 xfa Rpl RIPRAP DRAWING CLASS A BEDDING CLASS B BEDDING 1...._,, — 1r MH1ec ET + 1 YN, w(MM)IFlent e.jt1 0, owed u swuwrLo. Genwal Not": 1. Fran wMwf mall be specified BEDDING REQUIREMENTS Rn pane. 2 To = Outside Poe Diameter. CITY OF FORT GOLLINS. COLORAC ENGINEERING SERVICES UNIT 2. Rotor to W 2 CIO APPRDLED BT. me4uclim U= a, ec(lon 6,DAM Setting Material- Iw Relations. jmavafuw4 r n City of Fort Collins, Coloroco UTILITY PLAN APPROVAL APPROVED: N/ A _ Director ofEngineering Data CHECKED BY: N/A waterI & Wastewater Ut.ili.t1y Date CHECKED BY:. f!/r ,o A -N—3 uStf`terTTTTTl11RRunLr Date CHECKED BY: N/A Parts Is Recrwlion Date CHECKED BY: N/A TrWDc Engineer Dale CHECKED BY: N/A Nature! Resources Date z 0 NMx O amN it u f M L 0 u u a y G000 320w 3 W a- m (6 Of GO Q OGOU SHEET 1 1 OF 1 A, No. 344-01