PERMFILE134290

• Permit No: C1981038
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: VOLUME 4-SURFACE WATER APPENDIX- EAST ROATCAP CREEK
• Media Type: D
• Archive: No

RUNOFF LEVELS AT INLET
Q10 = 56 CFS
-• WS ELEV. @ TOP OF PIPE
Q100 = 45 CFS
WS ELEV. 1 FT ABOVE PIPE _
Q500 123 CFS _ ..
WS ELEV. 2 FT ABOVE PIPE HAUL SHAPED RIPRAP LINED (POSSIBLY GROUTED)
720 0 ROAD INLET AND OUTLET ENERGY DISSIPATOR TO
30 FT.
BE CONSTRUCTED
-ELEV. 7180
ELEV. 7175
2.S
21 1 1.0~ 2.S
COMPACTED FILL 1.0
ELEV. 7140 20 FT.
h 2.5 ~ POSSIBLE OPEN LINED CHANNEL-
w '0 r- ALTERNATIVE I 450 FT S = 2% ELEV 7120 TO BE DETERMINED DURING
aL \
\' FINAL DESIGN.
Z _ \\ \\\~ \~ AlT DIA. CSP CUL ~~
Z 7100 2.5
O EXISTING /\//\\\~~\ %\bi IVE 2 ~~//~`//\~i,~/.~/.\`GQ~\~ \ _
h GROUND SURFACE /\\~/~\\~//~i \ / \ ~ \ ~ /~~ /~//\ /~ /~~//~i ~~S F I.0
W
~ 6ao FT ~~'~~~/\ ao~
LL' DEBRIS BASIN AND POSTS
S = 12.8%
o so loo \ ~~~ ~\\ ~\\ i,\~
SCALE I" = 50~ .
HORIZONTAL AND VERTICAL -
7000
~ ~ Culvert Design
FIGURE N0. H-2 AND H-3