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HomeMy WebLinkAboutDrainage Reports - 12/23/1999----------------------- ' ' ' . ' '\', __ ,. _: :< . .. " -~-. .. ' ,., .. •' ' m en m "' " 'O ,", ~' ;-,· n . "-' ' . > ;·-~-, ·' ' :·" ; '. ' . ' .. ~ ~'-... , ';, '.. ·, -,'' •,, :\" :<•, .. ..._ ... ___________________ ..... ____________ ------------------... -----------.................... -......... -... ____ ............... ----------........-.. . r ' -"· ·-.· . -~: - ' -~ "\" . ·;-;·' : '/(' 'r[J : ' .. 1·1·· 1, . ' --; _·_·· ".·, I '' "\ -·, ., '.: ' ' \) 97.74 FL /) 94.0D FL / ""------:-/ ~·7= .. ·~=-=3f· .. ~~~~~~~~~~-----, \-~ -· ·:: ... · . ' " 9 - ' ·. y· . \' ,,,1,. 98.00 ···, i. 98.00 1 \ ' . . 97.3 } 9 ' 0 095.09 I I / 11 "93.76 FL I 9 5. 3 0 ;.F.::L--'---iii~ '}-- / I ' i ,2 ' CDNCRE 'E PAN e0.3% \ ' DO NOT Dl~TURB . EXISTING f'\'REST -\- \ EXIST , TREE LINE Outlot A 5096.94 / 10 c 98.01 6.21 12 98.10 ! 8()7 97 0014 96.74 97 \ 96.00 196.80 .. ,. 15 \ @ 9b.8 96 57 98.40 GO (11 0 "' I ~;::+:::..._.:...c. __ -o.1-J.ILLLIU 09352 4L----' I 97.97 0 I 9 7~0 ,/ >0 94.0$ 7'. 4 0 7.40 I ' @7 ~3.32 FL 3.45 95.20 5 4 509SJ9 CON RETE PAN @0:3 I. <9 DD TD 93.32) 5094.43 --+:fo.·· ·;=3 :.::::::___ __ _ / / / / / / ;'/ ""'° 22 , /,./ ' i so .56 I ' \ 5093. 30 @ I ' </CJ TE PA i RR LI NE ' ' I " CONTROL NOTES . •' 1. IT IS THt CONJRACTOR,AND THE DEVELOPER ARE RESPONSIBLE fOR MAINTAINING , ()NS.ITE .EROSION AND SEDIMEN!AHON PROTECTION ' FOR OfFSITE PROPERTY DURING CONSTRUCTION. THE CONTRACTOR SHALL ·!. ANTICIPATE LOCAL AREAS . WHICH ARE V.ULNERABLE TO EROSION AND SHALL TAKE NECESSARY MEASURES TO PROTECT ONSJJE: AND OFFSITE PROPERTY. . . . ' . . . "' -.. ·. 2. THE. coNTRACTOR SKALL INSTALL A. SILT n;NcE ALONG · THE SOUTH AND .EAST LIMrts OF THE PROPOSED DISTURBE0 D AREAS PRIOR TO BEGINNING 'ANY OVERLOT . GRADING .' . THE SILT FENCE SHALL BE MAINTAINED TO PROTECT ADJACENT . PROPERTY FROM SEDIMENTATION: THEY SH.ALL NOT BE REMOVED UNTIL THE CONTRACTOR HAS ·..... . COOROINATtO WITH AND OBTAINED APPROVAL FROM . THE CITY · Of FORT COLLINS, 3. MEASURES SHALL BE UNDERtAKEN TO . LIMIT THE OFF-SITE SOIL TRACKING Of MUD AND DEBRIS SPILLAGE FROM VEHICLES LEAVING THE SITE. MUD AND DEBRIS SHALL NOT BE TRACKED ALONG ROADWAYS AND/OR PAVED STREETS. 4. ALL DISTURBED AREA NOT IN BUILDING, SIDEWALK, PARKING OR ROADWAY SHALL BE DRILL SEEDED WITH DROUGHT TOLERANT NON-IRRIGATED TURf. 5. INSTALL .STRAW BALE BARRIER AT THE START OF CONSTRUCTION, COORDINATE WITH THE CITY OF FORT COLLINS F'OR REMOVAL. 6. GENERAL EROSION CONTROL CONSTRUCTION PLAN NOTES. CITY OF FORT COLLINS, JULY 1996. THE CITY OF FORT COLLINS STORMWATER UTILITY EROSION CONTROL INSPECTOR MUST BE NOTIFIED AT LEAST 24 HOURS PRIOR TO ANY CONSTRUCTION ON THIS SITE. 8. ALL REQUIRED PERIMETER SILT FENCING SHALL BE INSTALLED PRIOR TO ANY LAND DISTURBING ACTIVITY (STOCKPfUNG, c. D. STRIPPING, GRADING, ETC.). ALL OTHER REQUIRED EROSION CONTROL MEASURES SHALL BE INSTALLED AT THE APPROPRIATE TIME IN THE CONSTRUCTION SEQUENCE AS INDICATED IN THE APPROVED PROJECT SCHEDULE'., CONSTRUCTION PLANS, AND EROSION CONTROL REPORT. PRE-DISTURBANCE VEGETATION SHALL BE PROTECTED ANO RETAINED WHEREVER POSSIBLE.' REMOVAL OR DISTURBANCE OF EXISTING VEGETATION SHALL LIMITED ro THE AREA REQUIRED FOR IMMEDIATE CONSTRUCTION OPERATIONS, ANO FOR THE SHORTEST PRACTICAL PERIOD OF TIME. ALL SOILS EXPOSED DURING LANO DISTURBING ACTIVITY (STRIPPING, GRADING, UTILITY INSTALLATIONS, STOCKPILING FILLING, ETC .. ) SHALL BE KEPT IN A ROUGHEN CONDITION BY RIPPING OR DISCING ALONG LAND CONTOURS UNTIL MULCH, VEGETATION, OR OTHER PERMAN!'.NT EROSION CONTROL IS INSTALLED. NO SOILS IN AREAS OUTSIDE PROJECT STREET RIGHT OF WAY SHALL REMAIN EXPOSED BY LAND DISTURBING ACTIVITY FOR MORE THAN THIRTY (30) DAYS BEFORE REQUIRED TEMPORARY OR PERMANENT EROSION CONTROL (E.G. SEED/MULCH, LANDSCAPING, ETC.) IS INSTALLED, UNLESS OTHERWISE APPROVED BY THE STORMWATER UTILITY. E. THE PROPERTY SHALL BE WATERED AND MAINTAINED AT ALL TIMES DURING CONSTRUCTION ACTIVITIES SO AS TO PREVENT WINO- CAUSE'D EROSION. ALL LANO DISTURBING ACTIVITIES SHAtL BE IMMEDIATELY DISCONTINUED WHEN FUGITIVE OUST IMPACTS ADJACENT PRQPERTIES, AS DETERMINED BY THE CITY OF FORT .COLLINS ENGINEJERING DEPARTMENT. F. ALL TEMPORARY (STRUCTURAL) EROSION CONTROL MEASURES SHALL BE INSPECTED ANO REPAIRED .OR RECONSTRUCTED AS NECESSARY AFTER EACH RUNOFF EVENT IN ORDER TO ASSURE CONTINUED PERFORMANCE OF THEIR INTENDED FUNCTION. ALL RETAINED SEDIMENTS, PARTICULARITY THOSE ON PAVED ROADWAY SURFACES, SHALL BE REMOVED AND DISPOSE.D OF IN A . MANNER AND LOCATION SO AS NOT TO CAUSE THEIR RELEASE INTO ANY DRAINAGEWAY. G. NO SOIL STOCKPILE SHALL EXCEED TEN (10) FEET IN HEIGHT. ALL , SOIL STOCKPILES SHALL BE PROTECTED FROM SEDIMENT , TRANSPORT BY SURFACE ROUGHENING, WATERING, AND PERIMETER SILT FENCING. ANY SOIL STOCKPILE REMAINING AFTER 30 DAYS SHALL BE SEEDED AND MULCHED. H. CITY OROINAN¢E PROHIBITS THE TRACKING, DROPPING, OR DEPOSITING OF SOIL OR ANY OTHER MATERIAL ONTO CITY STREETS BY OR FROM ANY VEHICLE. ANY INADVERTENT DEPOSITED MATERIAL SHALL BE CLEANED IMMEDIATELY BY THE CONTRACTOR. .EROSION CONTROL LEGEND @ VEf!ICLE TRACKING CONTROL ® STRAW BALE PLACEMENT @ TEMPORARY SEEDING @ , PERMANENT SEEDING ® SILT rENCE © INLET PROTECTION ® SEDlMENT TRAP I N ' . NON-IRRIGATED SEEDING:: A .. ' DRIL~ SEEDING AND HYDRO MULCHING: 1. DRILL SEED ALL t>lON-IRRIGAT[O GRASS SEED BY MEANS OF . MECHANICAL . POWER ' ()RAWN DRILL StE'oERS (NOT BRILLION SEEDER) ·FOLLOWED BY . PACKER WHEELS OR DRAG CHAINS, SEE.D AT THE . RATES SHOWN, SEED ' IN TWO PASSES AT RIGHT ANGLES TO ONE ANOTHER, .· SOW HALF THE SEED IN EA'CH PASS, PROVIDE MARKERS OR . OTHER MEANS TO .ASSURE, THAT THE SUCCESSIVE SEEDED StRIPS Wll,L •· OVE;RLAP OR BE SEPARATED 'BY A SPACE NO GREATER THAN THE SPACE> .. BETIWEEN THE ROWS . PLANTED BY THE EQUIPMENT BEING USED. DO : NOT· ' SEED DURING WINDY WEATHER. . . I . 2. IN NON-IRRIGATED TURF AREAS, DO NOT SOW SEED IN TREE OR SHRUB WATERING RINGS. MULCHING: I I MULCH FOLLOWING SOIL PREPARATION. ' ' A. ! HYDRO-MULCH ALL AREAS WHICH HAVE BEEN DRILL OR BROADCAST SEEDED. MIX INGREDIENTS TO f'ORM A HOMOGENEOUS SLURRY. USING THE COLOR OF TH .E MULCH AS A METERING AGENT. ~~~~~D T~~E;~URRY MIXTURE UNIFORMLY OVER THE DESIGNATED I B. t THE MIXTURE SHALL BE APPLIED AT A RATE RECOMMENDED BY ~HL MANUFACTURER. '· c·: ~ HYDRO-MULCHING SHALL NOT BE DONE IN THE PRESENCE Of . URFACE WATER OR HIGH WIND, THOROUGHLY CLEAN OVERSPRAY AREAS ND SITE AMENITIES AFTER MULCHING. I . I I CONSTRUCTION SEQu(NCE PROJECT: ~OUNTAIN RIDGE FARM PUO SECOND FILING ------:-r::-::------------------------------------------ST AND ARD I FORM C SEQUENCE FOR 1999 ONLY .. COMPLETED BY: _.:!_·_1:~0l-r------------· -"--DATE: __ 1 0~/_1_2~/_9_9 _______ _ , 1.ndicate by use of a bar line or symbol when erasion control measures I will be installed. Major modification lo an approved 'schedule may require submitting a new schedule for ~;p~oval r the City Engineer. CONSTRUCTION A Month J' F M A M J J A s 0 N I ' OVERLOT GRADING I I WINO ERO'.?ION CONTROL ·~ 1--' ::;-.;; I •. . Soil R ughenlng -· . ' . ...... ....,,. --...... ~-1-"'· -~-- Perimeter Barrier Addilldnal Borriers V<>getative Methods ' ·. Soil Sealant Othe.r ' RAINFALL EROSION CONTROL STRUCTURAL: Sediment Trap/Basin Inlet Fillers Straw Barriers Silt F~nce B_orriers Sand Bags I Bare Soil Preparation Contour Furrows Terracing • Asphait/Concrete Paving Other VEGETATIVE: Permdnenl Seed Planting Mulchirg / Sealant Tempqrary Seed Planting Sod ll)slallalion Neiling I Mats I Blankets Other i ' I NOTE: FOR EROSION CONTROL DETAILS, SEE EROSION CONTROL DETAIL SHEET. City of Fort Collins, Colorado UTILITY PLAN APPROVAL APPROVED: Director of Engin•ftring Date CHECKED BY: ----.,...,--c-----~ Water &: Wastewater Utility Oate CHECKED BY: Stormwoter Utility Date 0 \·. GRAPHIC SCALE I .. :5~-.r~~Y·····•'l•o 11111•·•····2r CHECKED BY: Porks & Recreation Dote CHECKED BY: --------'-~---- CHECKED BY; -----~~---- ---~ ; 0 · 1. 'inch :;:; 50 ft .. N "' " <Xl • R N ·'q. " c '0 J: "- DATE: 1 2/15/99 SCALE: 1 "~ 50" DRAWN: .DGB ·. CHECKED: JRL . APPROVED:. • 0 . z · . • <( (/) ::) w • . _J 0::: ~ 1-u ~ 0::: 1- (/) , :2 O::'. , <( C) LL ·Z ' ' ._u . C> W- Z Cl LL ~00 Q_' _J 0 ·o::: 1-z 0 () w > O::'. z z .o zu . 0 (/). . -(/'.}. 4 . w ··-{/) w 1--(f) 0 0::: z g ::>· 0::: O:'.'. 0 w 0... 2 ......... ;;;.._...,_, ... ' I .. 1\/t-.~ -~ .... ~ /·~ .. r' . \ . PROJECT . ,. ,'. No 0008 SHEET ·.··.·.·5· .. -~·' --·- , >· - r ., •·' '(INFEET) 1 : ~ .. i!ill! ................... _ .... _.._ ......... _ ... ____ ._._ ...................... ------. ... --... ---... ---.... ---------... -------......................... _ ...... _ ... __ ............................... _.,,, .. \'~.,,, •'' ·•' .,~"· c'•' < '.-L -':' . ".:-~ " ' -~: ''~;J -F . ' _,,__"_'*--__,_ :..._, '"i;;' ~- ,. ' ., ' .. ~ .. · .. 1 "l ,,,,·· ,•·.'' " :1 . '·' : : 1 . ' ;,j l ! ' ' ', -' (' ' ·, -)~ ' . I i .. 1·· •. , "' .OJ . f-: ~ ·O "' - "' -u "' D " .c ,_ "' " 'O c '° n ' l'5, '° c ·~ '° L 'O .--= "' . 'O . .-- ""' L '· •. cQ ,-.. ;:('.: , . ...,,- '°0 ···, ·'. -..:_, - 0 ~ 1 NP B ---"" - 99 0 ' -~ I I I I I I /1 f-T;:=~~~~~f-1:H 98 . TOf• Q.60 5 17 2f ' -; I 1 2 4 -L,__+-_J ' - 5 6 - - \ , <9 .DD TD 93.32 ) ··-" ·& ·<::? TE PA EXISTING STORM INLE;T /. I ' I EXISTIN.G 24" RCP I I I EXI ~~ • I "; .... I / ,. . . ' I / /' / -~=------------- ' ~.' +· DESIGN POINT DP1 ' . DP2 DP3 OP4 OP5 DP6 D.PZ -- DP8 . CULVERT • . ' I ' . SUMMERY ·ot:" DRAINAGE -DATA SUB-BASINS A B ' B+C . A+B+C A+B+C+D E F + OS1 ~ G AREA C2 02 C100 0100 ' I 1 . 1 9 0. 71 1.73 0.89 . 6 .34 2.04 0.56 2.28 0.70 8.28 ! 2.78 1 0.61 3.22 0.76 11. 7 ' 3.97 ; 0.64 4.83 0.80 . 17 .5 I 4.49 ' 0.65 4.95 0 .. 81 18.0 ' ' ' 0.91 : 0.41 0. 78 0.51 2.87 I I 1; 7 8'1 ~-D..~LL. 1.34 0.51 4. 7.7 3.64 0.27 1.47 0.34 5.28 /, . ~,.,.. SLOPE = 0 .283 2' MIN. n = 0 .060 l I 'lo-</ 'd-"--+---¥-----t-~;-'0. 01 00 = 4. 7 7 els = d100 "' 0 .93' v 100 = 0.85 fps TOP WIDTH = 14. 7 ' 2' CONG. PAN 'CHANNEL SECTION A-A * 6' MIN"--. l-+- 2' MIN. SLOPE = 0. 553 n = 0.060 0100 = 2.8 7 cfs d100 = 0.50 ' v100 = 0 .79 fps TOP WIDTH = 17.2' 2' GONC. PAN ~HANNEL SECTION 8-B * VARIES ~ SLOPE = 0 .33 <.>, I '1;--f. 2' MIN, n = 0 .060 0100 = 5 .28 els ~ TREES' --~----""'~"""'-S I D E ~-+~~---+---/VARIE S d10 0 = 1:16 ', · 't=====::::!'.:--"1."-3'-rM:o:IN v100 = 1. 00 fp s N I TOP WID TH = 10' 2' CONG. PAN I CHANNEL SECTION c-c * •NOTE: DESIGN STORM=l.33 x 0100 LEGEND SUBBASIN BOUNDARY ~ SUBBASIN ~'-----AREA IN AC. I IDP 1 t - DESI GN POINT City of Fort Collins, Colorodo UTILITY PLAN APPROVAL APPROVED: Director of Eng ineering Date CHECKED BY: --=-c--:-"""-,---,,~~~ Water & Waste.water Utlltty Date CHECKED BY : -~---------Stormwoter Utlllty Date CHECKED BY: parks &: R~creotlon Da-te GRAPHIC SCALE CHECKEO BY: ----------- 50 0 25 50 100 200 ,_ •,. ' l ' 0 "' "' E • . 0 ' () ...: " c . L: ; ~- 0 .·§ c 0 0 (I() . 0 (I() "' I ' . ' "' O> . ... .. c _g . a. . DATE: l2./ fS/99'. SCALE: 1 "=50' DRAWN: DGB CHECKED: JRL APPROVED: (/) w a::: :::::> 1-:-u :::::> a::: ....,.. (/) () z > _J • 0 • :::J • w C) 0 0::: w >z (/) (/) w a::: l? 0 a::: a.. -<( 1-z :::::> 0 L (.'.) z _J -LL. 0 ,Z 0 0 w (/) - z ~· , .<( _J a... . PRO'JECT · ~No · .. --·-... ,. ' ' 0008 · SHEET . -~ . "' 0 ~·. ~riiill~l --•l----·1 >, .: ! I. (ln'.."h F!E:o )ft l "•·:;; . '_, . l CHECKED BY: -----------···,5 ~-' .. o ' ·'l!J .. ,,-,. '.· ~if ~ ... ·:-.. ·~*·· ."' .. ,~-~ .. " ..... ----.. --111iii ... --~~ ..... -... -------------... ------... -----... ---~,!!'. --,1!"1------------.--------------------------.--------~-----------..1~~---------------····· ------~--·ii··-·-~~" ... ~> •... :.~ . ,, . ,·... ,;, . ;.._ ~ l '>< ,,., · •.. -~, "· ':.l<.:iiti.·'··.·:.: 1 .. -j "ii!_. j . ' , ... ' ,. . .-' "-·• '