HomeMy WebLinkAbout09-00100066- 00076439SECTION IX
APPENDIX D - TECHNICAL DESIGN SUMMARY
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Part 4 — Drainage Concept and Desiqn Parameters
Continued (Page 4.4)
41 Stormilvter Managemen t (continued)
Within Or Serving Subject Property (Phase, or Site) (continued)
Gutter line slopes: Least O ' o Usual Greatest
Are inlets recessed on arterial and collector streets? Yes No If "no ",
identify where and why.
Will inlets capture 10 -year design tormflow to prevent flooding of intersections (arterial
with arterial or collector)? Yes No If no, explain where and why not.
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Will inlet size and placement prevent exceeding allowable water spread for 10 -year
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storm throughout site (or phase)? _ Yes No If no, explain.
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Sap curves Are inlets placed at low points? Yes No Are inlets and
conduit sized to prevent 100 -year stormflow from ponding at greater than 24 inches?
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Yes No Explain "no" answers.
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Will 100 -yr stormflow be contained i combination of ROW and buried conduit on
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who length o al s /� No If no, describe where and why.
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s for curb, gutter, and inlets comply with B -CS Technical Specifications? ei
Yes No If not, describe difference(s) and attach justification.
Are any 12 -inch laterals used? No Yes Identify length(s) and where
used.
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N
Pipe runs between system
Typical f o r t Longest '7-
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access points (feet):
N
Are junction boxes used at each bend? Yes No If not, explain where
N and
why.
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Are downstream soffits at or below upstream soffits?
Least amount that hydraulic
N
Yes No If not, explain where and why:
grade line is below gutter tine
(system- wide):
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STORMWATER DESIGN GUIDELINES Page 13 of 26 APPENDIX. D: TECH. DESIGN SUMMARY
Effective February 2007 As Revised February 2009