FUTURE ROUTING OF PINNACLE OB-1 FLOWS INTO EX. STORM W/ BASIN B DEVELOPMENT
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BASIN G TO CONTINUE AS SHEET FLOW INTO POWERS BLVD
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3
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1
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4
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2
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5
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2
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1
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BASIN A FUTURE DEVELOPMED FLOWS TO BE DIRECTED TO DP#5
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JOB NO.
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SHEET OF
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DESIGNED BY
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DRAWN BY
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CHECKED BY
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SCALE
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(H) 1"=
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(V) 1"=
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(719)785-0799 (Fax)
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Colorado Springs, Colorado 80903
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619 N. Cascade Avenue, Suite 200
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(719)785-0790
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DATE
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2556.01
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1
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1
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LOT 1, BRIARGATE COMMERCIAL NORTH
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FILING NO. 1
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DEVELOPED CONDITIONS EXHIBIT
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PRELIMINARY GRADING PLAN
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KRC
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KC
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50'
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N/A
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03/13/20
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N
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0
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SCALE: 1" =
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50'
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50
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50
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25
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100
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KRC
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PROPOSED BASIN BOUNDARY
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DIRECTION OF DRAINAGE
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BASIN IDENTIFIER
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AREA IN ACRES
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SUBDIVISION BOUNDARY
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EXISTING GROUND CONTOUR
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PROPOSED FINISHED CONTOUR
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LOT LINE
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%%ULEGEND
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5910
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5910
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1.41
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D
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PIPE RUN
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1
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LOW POINT/HIGH POINT
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PROPOSED STORM INLET
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PROPOSED STORM SEWER
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EXISTING STORM SEWER
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EXISTING STORM INLET
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DESIGN POINT
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LP/HP
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1
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NOTE: PROPOSED ON-SITE CURB AND GUTTER IS CITY OF COLORADO SPRINGS, TYPE 3 (TYPICAL). ALL STORM (EXISTING AND PROPOSED) IS PRIVATE. ROOF DRAIN LOCATIONS AND TRIBUTARY AREAS TO BE VERIFIED W/ SITE DEVELOPMENT.
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Q100 (CFS)
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DESIGN POINT SUMMARY
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DESIGN POINT
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Q5 (CFS)
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3.6
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1
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6.8
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2
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3
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4
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5
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INLET SIZE
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10' TYPE R SUMP
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Q100 (CFS)
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BASIN RUNOFF SUMMARY
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BASIN
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Q5 (CFS)
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6.2
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D
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12.3
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A
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B
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C
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7.9
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16.1
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5.2
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10.6
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3.2
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6.0
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Q100 (CFS)
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PIPE ROUTING SUMMARY
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PIPE RUN
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Q5 (CFS)
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14.3
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1
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29.0
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2
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PIPE SIZE
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24" @ 2%%%
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0.3
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H
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0.5
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E
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F
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G
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1.8
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3.2
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1.9
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10.8
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1.5
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8.6
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15.1
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30.4
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24" @ 2 %%%
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6.6
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13.0
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10' TYPE R SUMP
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5.2
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10.6
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18" RCP @ 1%%%
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25.1
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49.8
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EX. 36" @ 2.5%%% AND 7.4%%%
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7.9
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16.1
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24" @ 2%%%
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NOTE: NEW FINAL DRAINAGE REPORT OR AMENDMENT TO THIS ONE REQUIRED PRIOR TO DEVELOPMENT WITH BASINS A, B, AND SOUTH PORTION OF BASIN D.
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NOTE: NEW FINAL DRAINAGE REPORT OR AMENDMENT TO THIS ONE REQUIRED PRIOR TO DEVELOPMENT WITH BASINS A, B, AND SOUTH PORTION OF BASIN D.