Laserfiche WebLink
<br />3. ANALYSIS (Cont'd) <br /> <br />Loss Coefficients <br /> <br />Entrance loss coefficient <br />Manning's "n" value assigned to the struclure(s) <br />Frict.ion loss coefficient through structure (5) <br />Other loss eoefficient.s (e.g., bend <br />manhole, etc.) <br />1'olalloss coefficient <br />Weir coefficient <br />Pier'coefficient <br />Contraction loss coefficient <br />f<;xpansion -loss coefficient <br /> <br />0.03 <br /> <br />1.7 <br />2.6 <br /> <br />1.05 <br /> <br />0.3 <br />0.5 <br /> <br />4. SEDIMENT TRANSPORT CONSIDERA nONS <br /> <br />1. A. Is there any indication from historical records that sediment transport Une! uding scour and deposition) can <br />affect the J DO-year water surface elevations? 0 Yes 1KI!'10 <br /> <br />13 Based on the conditions (such as geomorphology, veffetatwe cover and development of the watershed and stream <br />bed, and bank conditions), is there a potential for debris and sediment transport (including scour and <br />deposition) to affect the I DO-year water surface elevations and/or conveyance capacity through the <br />bridge/culvert? ................. 0 Yes []!'Io <br /> <br />2. If the answer to either IA or 18 is yes: <br />A. What is the estimaled sediment (bed material) load? <br />cfs (attach gradation curve) <br /> <br />Explain method used to estimate the sedimen1. transport and the depth Of:icour and/or <br />deposition <br /> <br />13. Will sediment accumulate anywhere through the bridge/culvert?O Yes 00 ~o <br /> <br />If yes, explain the impact on the conveyance capacity through the <br />bridge/culvert? <br /> <br />5. FLOODWA Y ANALYSIS <br /> <br />Explain method of bridge encroachment <br />!.noodway run) <br /> <br />Bridge/Culvert form <br /> <br />fOlm7 <br /> <br />Page S of 6 <br />