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DREXEL, BARRELL & CO.Engineers Surveyors
3 SOUTH 7TH STREET COLORADO SPGS, COLORADO 80905CONTACT: TIM D. McCONNELL, P.E.
(719)260-0887
FALC
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HUMMEL INVESTMENTS, LLC
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WATER QUALITY POND #2
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SUB-REGIONAL DETENTION POND #1 (SR4)
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OPEN GRASS-LINED CHANNEL
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EX. 3-48" TRIPLE RCP CULVERT @ 0.5%
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EX. 3-48" TRIPLE RCP CULVERT @ 0.5%
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EASTONVILLE ROAD (80' PUBLIC R.O.W.)
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MERIDIAN ROAD (PUBLIC R.O.W. VARIES)
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E. WOODMEN ROAD (PUBLIC R.O.W. VARIES)
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OFFSITE SWALE FLOW Q5=6.6 CFS Q100=19.4 CFS
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MAINTENANCE ACCESS
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MAINTENANCE ACCESS
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OWL LANE (60' PUBLIC R.O.W.)
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EX. 24" STORM SEWER
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EX. 24" STORM SEWER
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EX. 36" STORM SEWER
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COURTYARDS AT WOODMEN HILLS WEST
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FALCON RANCHETTES
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EX. INLET
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EX. INLET
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EX. INLET
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POND INFLOW Q5=310 CFS Q100=1016 CFS
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CLOMR FLOODPLAIN
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FEMA FLOODPLAIN
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CLOMR FLOODPLAIN
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CLOMR FLOODPLAIN
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FEMA FLOODPLAIN
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CLOMR FLOODPLAIN
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CLOMR FLOODPLAIN
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GROUTED SLOPED BOULDER STRUCTURE
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WEST BRANCH (PER DPS/CLOMR) Q5=21 CFS Q100=99 CFS
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EAST BRANCH (PER DPS/CLOMR) Q5=273 CFS Q100=847 CFS
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LOCAL DRAINAGE (PER DPS/CLOMR) Q5=59 CFS Q100=199 CFS
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CLOMR FLOODPLAIN
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FEMA FLOODPLAIN
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WATER QUALITY POND #3 PENDING FINAL DESIGN ROW TO BE VACATED
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TEMP. BERM TO DIRECT FLOW TO POND TO BE INSTALLED UNTIL FINAL GRADING IS COMPLETED FOR ADJACENT DEVELOPMENT
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DBPS FLOODPLAIN
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DBPS FLOODPLAIN
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SCALE: 1"=100'
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%%ULEGEND
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LOT LINE
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PROPERTY LINE
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PROPOSED STORM SEWER
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BASIN BOUNDARY
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FLOW DIRECTION
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DESIGN POINT
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IMPERVIOUS COVERAGE
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PR. MAJOR CONTOUR
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PR. MINOR CONTOUR
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EX. MAJOR CONTOUR
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EX. MINOR CONTOUR
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BASIN DESCRIPTION
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BASIN AREA
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DRAINAGE
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PROPOSED
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CONDITIONS
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DESIGNED BY:
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DRAWN BY:
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CHECKED BY:
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FILE NAME:
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%%UDRAWING SCALE%%U:
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FALCON, COLORADO
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SHEET: OF 1
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PREPARED BY:
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PRELIMINARY PLAN FOR
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DRAWING NO.
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PROJECT NO. 20988-00CSCV
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HORIZONTAL:
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VERTICAL:
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BOULDER COLORADO SPRINGS
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INITIAL ISSUE
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PREPARED UNDER MY DIRECT SUPERVISION FOR AND ON BEHALF OF DREXEL, BARRELL & CO.
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8117 PRESTON ROAD, SUITE 120 DALLAS, TEXAS 75225 (214) 416-9820
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REVISION
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PRO. INLET LABEL
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%%URUNOFF SUMMARY
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EMERGENCY SPILLWAY
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EMERGENCY SPILLWAY
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NO SCALE
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SPILLWAY SECTION C-C
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MAINT. ROAD
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MAINT. ROAD
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18" THICK TYPE M BURIED RIPRAP OVER MIRAFI 140N FABRIC
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NO SCALE
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POND #2 & OPEN CHANNEL SECTION D-D
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COMPACTED POND EMBANKMENT
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E. WOODMEN ROAD
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EMERGENCY SPILLWAY ELEV=6878.00
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EMBANKMENT/MAINT. ROAD ELEV=6879.00
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TRICKLE CHANNEL
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OPEN CHANNEL
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WATER QUALITY POND #2
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18" THICK TYPE M BURIED RIPRAP OVER MIRAFI 140N FABRIC
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NO SCALE
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GROUTED SLOPED BOULDER STRUCTURE A-A
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UPSTREAM CHANNEL INVERT
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SOIL RIPRAP
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GROUT WALL
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TYPE H GROUTED RIPRAP
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4 (TYP.) (SEE PLAN)
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TOE POND INVERT
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GROUTED BOULDER BEYOND OPENING IN END SILL FOR DRAINING STILLING BASIN
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CONCRETE OR GROUT WALL POURED IN TRENCH THROUGH CLAY LINER
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GROUT LINE
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CLAY LINER
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STABILIZED ACCESS 6" OF 3" MINUS OVER 24" TYPE M RIPRAP
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CLAY LINER
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SPILLWAY SECTION B-B
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COMPACTED POND EMBANKMENT
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100-YR WATER SURFACE ELEV=6897.00
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EMERGENCY SPILLWAY ELEV=6898.00
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EMBANKMENT/MAINT. ROAD ELEV=6901.00
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18" THICK TYPE M BURIED RIPRAP OVER MIRAFI 140N FABRIC
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2' BURY BELOW PARKING LOT GRADE EXTEND RIPRAP TO BACK OF FUTURE CURB
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ASPHALT PARKING LOT
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NO SCALE
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TRICKLE CHANNEL SECTION
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6X6 WWF REINFORCEMENT
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CLAY LINER
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WEST BRANCH
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EAST BRANCH
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POND SR4 RELEASE RATES: Q2= 12 CFS 2= 12 CFS = 12 CFS 12 CFS Q5= 52 CFS 5= 52 CFS = 52 CFS 52 CFS Q10= 106 CFS 10= 106 CFS = 106 CFS 106 CFS Q25= 338 CFS 25= 338 CFS = 338 CFS 338 CFS Q50= 481 CFS 50= 481 CFS = 481 CFS 481 CFS Q100=644 CFS100=644 CFS=644 CFS
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NO SCALE
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MAINTENANCE ROAD SECTION E-E
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6" THICK CONCRETE WITH 6X6XW1.4XW1.4 WWF
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COMPACTED POND EMBANKMENT
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EX. GRADE
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THIS SECTION REFERS TO A PORTION OF MAINTENANCE ROAD BEGINNING AT THE EAST EDGE OF THE GROUTED RIPRAP FOR A LENGTH OF 250-LF EAST ALONG THE NORTH PROPERTY LINE
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NO SCALE
dsdrice
Cloud+
Revise per new calculation
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O1 32.5 10.3 30.2
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provide a DP
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DP-O1 32.5 10.3 30.2
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If depth of flow is higher than curb, additional protection is required.
