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<br />Small low level crossing structures such as foot bridges were not included
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<br />in the detailed analysis, It is assumed that these structures w.iJl be washed
<br />
<br />
<br />out during a major flood and will not cause significant backwater.
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<br />It is recommended that the hydraulic capacities of both the stream
<br />
<br />
<br />channel and the hydraulic structures (particularly bridges) be maintained
<br />
<br />
<br />by keeping them clear of debris. This can be accomplished through a regular
<br />
<br />
<br />maintenance program and onsite cleaning operations during flood periods,
<br />
<br />Trees have fallen across the river in a number of areas and may restrict
<br />
<br />flood waters (Stations 75+00, 84+00, 92+00, 138+00, 153+00, 185+00). For
<br />
<br />
<br />example, the fallen tree near Station 153+00 has a 6 foot diameter trunk.
<br />
<br />
<br />Continued debris accumulation against this tree may potentially force a channel
<br />
<br />shift to the south,
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