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<br />EXHIBIT IV-A, 2 of 2 <br /> <br />I <br />I <br />t-. <br />I <br />I <br />I <br />I <br />I <br />I <br />,I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />'1. <br />I <br /> <br />B. Channel: <br />1. Upstream cross section <br />a. OVerbank flow at high water <br />b. Typical section <br />c. Manning's "n" value <br />2. Geomorpholoqy <br />a. Description <br />b. Location of bridge <br />c. Tendency for lateral movement/erosion at bridge <br />3. Bed Material <br />a. Description <br />b. Sample <br />4. Bank <br />a. Material <br />b. Condition (stable, erodible, vegetated) <br />c. Evidence of scour/erosion <br />5. Obstructions influencing flow <br />a. Bridges up or downstream <br />b. other <br />C. Picture "s and description: <br />Film' Picture' Description <br /> <br />------ --------- ------------------------------------------------- <br /> <br />------ --------- ------------------------------------------------- <br /> <br />------ --------- ------------------------------------------------- <br /> <br />------ --------- ------------------------------------------------- <br /> <br />8-16 <br />