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<br />B. Problems at Confluences. <br /> <br />Increase Flood LeoeI <br />i:!.~ and Deposition <br />~ on Tribubuy <br />~ <br />--1~~ <br />- 1n=ase S~ <br /> <br />~on on Tributary <br /> <br /> <br />~ <br /> <br />Increase Slage and <br />Sediment Load. <br />"'- """ on Tributary <br />~~,._~. _". Alipunent and <br />" ..~" ~... Sed.imerltation <br />-- Problems <br /> <br />1. Crossings of tributary streams are affected by the stage elf the main <br />stream. <br /> <br />2, Similarly, problems at a bridge crossing of a larger stream may <br />result from varying flow distribution at various stages in the stream <br />and its tributary. <br /> <br />C. Backwater Effects of Alignment and Location. <br /> <br />3.20 <br />