HomeMy WebLinkAboutSection IX 09-66• • • • ••
SECTION IX
APPENDIX D -TECHNICAL DESIGN SUMMARY
Part 4 -Drainage Conce12t and Design Parameters I Continued (Page 4.4)
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Within Or Serving Subject Property (Phase, or Site) (continued)
Gutter line slopes: Least 0 ' &o/o> Usual (). 'b "ii Greatest z... oc-h
Are inlets recessed on arterial and collector streets? --Yes --No If "no",
identify where and why.
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Will inlets capture 10-year des~tormflow to prevent flooding of intersections (arterial
with arterial or collector)? Yes __ No If no, explain where and why not.
<"· "tJ Q) VJ Will inlet size and placement prevent exceeding allowable water spread for 10-year :::i .... design storm throughout site (or phase)? ____L.LYes No If no, explain. Q)
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"tJ -c"O v Ill Q) Sag curves: Are inlets placed at low points? Yes No Are inlets and .o E --.... ·-conduit sized to prevent 100-year stormflow from ponding at greater than 24 inches? :::i .... 0 c ___0es __ No Explain "no" answers. 0 .£: 0 -~.._... :: Se e_ Pr~p~_..,_,~: ~ D VJ Qi ~ iii
Q) Will 100-yr stormflow be contail?v combination of ROW and buried conduit on .... <( whole length of all streets? Js __ N? If no.,descr!be hhere and why. In 1 ~ f 0-t t J fZo .J<-v1sJ-i; fv,.c 6V , i1 '" '""-J.. r.,f{. c 111"" r'""' ..-u ' }. A . ' . r. 4 nt? lo,,, *" ;,\. t<.J r 1y.i:•p +c, J-, 1J,pJ .e. ~ 4>t:r"p1 ... f-4. 'u.-.../1-e .;....:,b~< 5J.-Jfl~-" "~f . (
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·r,f,',,.. 5 Do d~s for curb, gutter, and inlets comply with 8-CS Technical Specifications?
\ Yes __ No If not, descrioe difference(s) and attach justification. • o1v-~ ···"_I {" .
/
Are any 12-inch laterals used? V No --Yes Identify length(s) and where
used.
<"· "tJ Pipe runs between system I Typical ·z fu~ I ~ access points (feet): lOti \ Longest
Are junction boxes used at each bend? _iLYes --No If not, explain where
and why .
Ill
c ·-0 ~z "tJ I E .... 0 Are downstream soffits at or below upstream soffits? Least amount that hydraulic iii
..!!? Yes ~ No __ If not, explain where and why: grade line is below gutter line
(system-wide): fe • Af pc·..J -'1.
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STORMWATER DESIGN GUIDELINES
Effective February 2007
Page 13 of26 APPENDIX. D: TECH. DESIGN SUMMARY
As Revised Februarv 2009
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