Addington Crossing Subdivision - Post Stormwater Map WS1

File: W:\CalAtlantic\Potter Road\Civil\DWG\04_Sheets\C-506 OVERALL POST DRAINAGE PLAN.dwg, Tab: C-500 OVERALL GRADING AND DRAINAGE PLANPlot Stamp: 8/11/2017 4:06:54 PM - Laurin HallnerADDINGTON CROSSINGCAL ATLANTICWESLEY CHAPEL, UNION COUNTY, NORTH CAROLINADESIGNED
SHEET NUMBER
PROJECT #
CHECKED
DRAWN
DATEDATE#DESCRIPTIONBYCALATL1603
07/27/2017
ROBERT L. CASH, P.E.
NC LICENSE No. 033448
07/27/2017
HK
JW
RC
SHEET TITLE05/10/20171ADJUSTMENT C-501 PER DUKE COMMENTS 0
1 INCH = FEET
75 150 300
150
2/5POST STORMWATER TRIBUTARY MAP (WS1)POST STORMWATER
TRIBUTARY MAP (WS1)
DET 1 AREA DATA
WATERSHED
(WS)WS AREA (AC)CN TC
AREA E 4.05
TOTAL 4.05 68.00 6.50
DIRECT RELEASE 1 AREA
DATA
WATERSHED
(WS)
WS TOTAL
AREA (AC)CN
AREA D 1.42 79.00
AREA F 1.17 79.00
AREA G 0.74 79.00
AREA J 2.42 79.00
TOTAL 5.75 79.00
DET 2 AREA DATA
WATERSHED
(WS)
WS TOTAL
AREA (AC)CN TC
AREA I 11.38
TOTAL 11.38 68.00 9.30
DET 3 AREA DATA
WATERSHED
(WS)
WS TOTAL
AREA (AC)CN TC
AREA L 5.23
TOTAL 5.23 79.00 10.50
COMPARISON PRE TO POST DEVELOPMENT
CONCENTRATION
POINT (WS)Q25 (cfs)Q100 (cfs)CONCENTRATION
POINT (WS)Q25 (cfs)Q100 (cfs)
XCP1 202.92 312.43 CP1 197.72 309.74
XCP2 161.70 259.65 CP2 163.56 254.79
N/A N/A CP3 (CULVERT ONLY)178.06 280.14
TOTAL RUNOFF
(XCP1+XCP2)364.62 572.08 TOTAL RUNOFF
(CP1+CP2)361.28 564.53
BYPASS 1 AREA DATA
WATERSHED
(WS)
WS TOTAL
AREA (AC)CN TC
AREA B 10.42 68.00
AREA C 5.30 68.00
TOTAL 15.72 68.00 30.10
DIRECT RELEASE 2 AREA
DATA
WATERSHED
(WS)
WS TOTAL
AREA (AC)CN
AREA H 0.96 79.00
AREA M 0.79 79.00
AREA N 1.98 79.00
TOTAL 3.72 79.00
BYPASS 2 AREA DATA
WATERSHED
(WS)
WS TOTAL
AREA (AC)CN TC
AREA A 41.86 63.00
AREA K 3.19 63.00
TOTAL 45.05 63.00 25.30
BYPASS 4 AREA DATA
WATERSHED
(WS)
WS TOTAL
AREA (AC)CN TC
AREA T 2.53 58.00 18.90
TOTAL 2.53 58.00 18.90
LEGEND
BYPASS AREA
DIRECT RELEASE AREA
DETENTION POND 1
DETENTION POND 2
DETENTION POND 3
DETENTION POND 4