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<br />5. HYDRAULIC CONSIDERATIONS <br /> <br />1, The channel was designed to carry 5000 (cfsl andlor the 1 OO'year flood, <br /> <br />2. The design elevation in the channel based on: <br /> <br />IZI Subcritical flow <br />o Critical ftow <br />o Supercritical flow <br />o Energy grade line <br /> <br />3. If there is the potential for a hydraulic jump at the following locations, check the box(es) that apply and attach an <br />explanation of how the hydraulic jump is controlled without affecting the stability of the channel. <br /> <br />Inlet to channel? <br /> <br />0 Yes <br />0 Yes <br />0 Yes <br />0 Yes <br />0 Yes <br /> <br />Outlet of channel? <br /> <br />At Drop Structures? <br /> <br />At Transitions? <br /> <br />Other locations? <br /> <br />Explanation Attached? <br /> <br />DYes <br /> <br />IZI No 0 NIA <br /> <br />. <br /> <br />6, SEDIMENT TRANSPORT CONSIDERATIONS <br /> <br />If there is any indication from historical records that sediment transport (including scour and deposition) can affect the 100- <br />year (base flood) water-surface elevations; and/or based on the stream geomorphology, vegetative cover, development of the <br />watershed and bank conditions, there is a potential for debris and sediment transport (including sewer and deposition) to <br />affect the base flood water-surface elevations, then provide the following information (Check the box if provided): <br /> <br />D Estimated sediment load <br />D Method used to estimate sediment transport <br />o Method used to estimate scour and/or deposition <br />D Method used to revise hydraulic or hydrologic analysis (model) to account for sediment transport <br /> <br />. <br /> <br />FEMA Form 81-89E <br /> <br />Channelization Form <br /> <br />MT-2 Form 6 Page 2 of 2 <br />