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HomeMy WebLinkAboutSite Certifications - 05/10/1996, May 8, 1996 Dr. Basil Harridan City of Fort Collins vvv Stormwater Utility 235 Mathews fort Collins, CO 80522 STORMWATER RECEIVED MAY 0 0 1,096 �-/ tt�14z-c C. ©- RE: THE GATEWAY:AT"HARMONY-ROAD-PUD THIRD FILING' - DRAINAGE CERTIFICATION Dear Basil: Enclosed is a copy of a Drainage Certification and marked up blue lines of the grading and utility plans for the referenced project. We find that the project has been completed in substantial compliance with the construction documents. If there are any questions please call me. Sincerely, WATER, WASTE & LAND, INC Mau ce H. Lutkin, P.E. Ma alter, Civil Engineering Division 2629 Redwing Road, Suite 200, Fort Collins, Colorado 80526-2879, Ph. 970 226 3535, FAX 970 226 6475 Reno Tucson Elko Englewood Pleasanton Winnemucca Nevada Arizona Nevada Colorado California Nevada DRAINAGE RAI AGE CERTIFICATION FORM OAP Please fill out all applicable items in this certification form �. for single family, multi -family and commercial properties. Write "OK" for items checked or actual number checked in field. Use "N/A" for items that are not applicable to the property that is being certified. A. Drainage facilities certification 1. Pond Certification -volume verification ✓ a. topographic records and volume b. cross -sections and spot elevations ✓ -positive fall to pan -side slopes -invert elevation -spillway elevation �✓r° -placement and size of riprap -side slopes -grading ✓ -orifice plate installation and size -compaction of berm n/A -structural integrity of pond 2. Swales -location (are they within easement) -dimensions and cross-section verification -longitudinal slopes and side slopes ✓ -spot elevations -permanent erosion control measures ^4Q (drop structures, riprap, etc....) -tie-in to pipes, pans, curbs, etc.... ✓ -weir size (elevations, size, opening, etc...)(g -available freeboard ✓ -landscaping infringement on swales ✓ 3. Pices -size and type -slopes (as -built and comparison to minimum 0.4% slope) -pipe capacity calculations if slopes are significantly altered /✓f -invert elevations ✓ -installation and backfill material -cover -encasement and clearance from other utility lines close by -joints N'4 4. Ccncrete Pan Charnels -size -slope -super elevatio:. -cross-section -t is^ess -elevaz_ons S. Inlets -size and type /�j0 -size of opening (or name of standard used) -grate elevation /VW -invert elevation -box size 6. Cross Aans -size -type -grade -elevation -cross-sectional depth ✓ -tie-in to curb and gutter ✓ 7. Culverts -size AJA -type /VA -invert elevation Alp -headwalls 8. Underdrains -size A/%Z -type -cover -backf ill Wit -geotextiles l -cleancuts (VA 9. Curb cuts -size -tie in to Swale, pipe, etc.... ✓ B. Certification of Grade Elevations Adjacent to Drainage Facilities: -minimum opening elevations -top of foundation elevations /A -comparison to 100 year WSEL's (Freeboard requirements and floodplain issues) C. Certification of Erosion Control Measures: 1. Permanent Measures: -Permanent vegetation (6" bare snots and weeds under control) -rimram �aG� -riprap bedc'_zg N4 -drep secticns ^14 -sed4ment basins/water quality perds aA -netting mats/blankets .41-A -/ -mulching V 2. Temnorary Measures: -mulching -inlet filter installation ✓ -check bale dams -seeding and temporary vegetation -silt fence D. Site Cleanup After Construction / -construction clean up ✓ / V -smoothing of ruts -reseeding E. Statement of Compliance This certification is signed and stamped: and by signing this form the engineer(s) attests that to the best of his knowledge. the as -built conditions of the drainage facilities are as described in the above form and in the redlined plans enclosed. Failure to properly disclose all known information could result in the rejection of this certification and prevent the release of any Stormwater Utility holds on.Building Permits and/or Certificates of Occupancy. F. Signature and SI Engineer. essional KENSINGTON DRIVE (54' R.O.W.) Llaw •T 2r.L a, _r-•N. _ - --•rxi- EXISTING IUD" CONTOURS IT R INrERUAI) - --- -- -- - INTERMEDIATE CONTOURS (05 Er INTERVAL) r Pi EXISTING WATER VALVE ____ ___ _____ __ __ _ Lrs RAMP __ __ _ _ _ __ - - _ _ a EARTHS THRUST BLOCK _ ~MRUN. m`^ O - \\ E%eln STING MANHOLE • �. •x n...; Ll • i .� EXISTING HYDRANT -'" IN I FASTING MEALS PT AMID NUR R STOP SD_ CASTING rsPW� H- rs,A, -s0- EN=NGSTRau: I _ -W- EXISTING ATER E wv ELEV - 5036. I N ins AIANNE W PAN m ENSUING FLA EKVAULT ijI INV Euv _ x l m EwsnxG TELEPHONE PEDESTAL_ -_I 2 1 \ \ DENNIS slv NO IEIW Plf Q EVENING LOW T POPE FINISHED ELDCN ELEV - BONN ON I I LOCATE EXs TM .VID BUT 6 ppCpERly BOUNDARY I L.. 4- C WE 15z aK c I v`EUS PIPE OR TER SERMQ - _ - EDGE Or PAVEMEM I NEW ,hII TYPE •A• aVp ! Cl NIpNFp. IP1 dY8 SCALE IN FEET -ST - NEW STORM W TER C C PAPTY REQUIRES 320 GALLON SMT 6. J 'II I -DW- NEW SIC SURFACE EASY WI � � f 20 0 AO -SS- NEW SANITARY $E`AER INV T EDEV W2575 I� n� IN BAS& TANK - 50.U.35' I 1 N NEW METER PIT /ND CUM STOP N SEE AIXTNL d1 SHEET 6 i �' I O CO NEW SANITARY AVER MI ANOUI SEW' Z /NT III Ni, y OEINL ID NUMBER M REFERENCE SHEET NUMBER NEW gnGNDW CURS To a1TTER . i AMW 190EWN% i DEA j�� MOT95 AT 0 � � I PILL - . _ - 1__—__—__—__� E� x OR PIPE _ r L ME MEET 5 FOR CRAOHE PXO DRAINAGE DETAILS 2 ME 91EEi 5 PCR UTILITY DETAILS az'E PAID ss�UK NEW OUT 'I 3 ,� RJ2 Y A ] LOCATE SEWER STUBS ABU CONTACT CITY OF FOR COLLNS WATER O� p F__ CO DET Cx SIaEEi r �� / psmBVnOM OWNS TO ABANDON BE 1 / WDE PNIMY Y MY ND 0.0 �• I a MAWTNN 1- MINIMUM OVERLAY THICKNESS AL G1RB5 ! PANS, n -0` `�a ) AND FEATIER ANTS. W MET INV - So. .DO' - 511i 8 ' I I SEE IWIPA PLATE Lf� L 5. THE TYPES. 4S LECAnOx AND NUMBER OF ALL KNOW _ �_ _ -____-______ __ - - _ SHEET 6 A ,\ UNDERGROUND UTLTES ARE APPROXIMATE WHEN SHOW ON THE �t - A` / I OMMNDS IT IS THE RESPONSIBILITY OF THE CONTRACTOR To /-/_ 1 SFr THE EpslExcE AND LCEAnw ci ALL uvTERCFaurvD Vm TrF AM I I KCVO WE RWY W DUE WORK BEFORE COMMENDING NEW I /� CMSTRUCnp. I A GO I II I, Z I I p rl i --- •_�- - _,-1_ -- r77� Ilr V 1 uI RA'X '(� �.I FFI sE BOY w. WAS HAT - I ]0� EOF II H— sWI ° a I¢s T. I N / _. WATER UN R 9 6 WATER UHE MQ75O Fi6i MHRT . 500. W' Nr< L-W }IEyTMlpyl RS' 1 NRN�MANn o •. IRFAOI , dlRa STOP AND METER Ri grEA YNIHp£ 166a I _AWIKi 1 0R BREWTON TAP �I W 0 PATCHSAT SH T5 I JP V0vT TO UTUN v: T ASPHALT ME ] 1 i V_AN AATACH T x _ i ....A. l ME w 1 ' ��? Enp' RI % e 5- NFW 6' PVC - IS' flR 1S ERAS L NvP -_ ... , I AT GLASS c 6EDDNE�- UKG + _ », r .J- w'uE •RAFT ua \ � _ 00, I - �'� / IAN I - ---- � o- 'RLuICD 1OE E / WrYPAE1a STEEL PWAWALRC55 SIDEWALK ONLY KE CR@HG RAN 91EC[ 4 FEW _ ` • INVERT ELEVATION -,. `v -_- ��wP�a . �. - r y� AN DR EYS WRB k WiTEP, ND IVE - is VS d E@{ Be a 'WWr Rq'wl s Qz ° r ae m ;x44SAT= fT m rrn r.1, 11 Fm., PROPOSES GROUND v �.� ZIP ¢aK x 5 0 JIIU" FLAN AuLIK41 --__ mw ARAM I m EvsnrD cRwro WE AaUP -- 5 APPROVED -[.� �i5 I� mM" SUDWB 0.02% 2D' MOMENT, BE DIP --- mx DATA15n. WON- J0 Hr CHECKED BY. PD �'-q3 LOCATED 10 GTKR ME M • N � AP LINE E%5 BE SINITMY AVER MAINTAINOF 1 ARWCE 6 WATER uxE SIERRA! SEWER 50)5 CHECKED 6Y `� gy�m�//--{{ ^J AND WAN ARUXr- .r a 0]0 ./ CHECKED 9T'. n ' YnKnv� Trr Y - NCp ]a0] NCO PI 1100 0i005015M MdUTWAL RCN£: I' 0' WALE. vERUIGL AAIF. 1' 10 ' Br umx ..... H E _ C sign JTK 6/95 0 B c THE GATEWAY AT HARMONY ROAD P.U.D. UTILITY PLAN W 4 --"-- - O awn FDA us5 7 b r An CIA,mn.^-v N'l'" _ M1ttkeO JM )L95 THIRD FILING S �f i .ss STgtY_ OR/JN RE_MICNMENT a SIN 1LS(]Zd(�L 7_ vea APDroBE 0 0 N - - 'CAa No'. -.. DnogOm Dme c1 No. 95431100