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Stream-Profile Analyses Using a Step-Backwater Model for ... - USGS

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Appendix 3 67<br />

Table 3–1. Water-surface elevation along Chippewa Creek after decreasing the Manning’s roughness coefficient (n) <strong>for</strong> the main<br />

channel by 5, 10, 15, and 20 percent.—Continued<br />

River<br />

station 1<br />

95792<br />

95932<br />

96088<br />

96297<br />

96450<br />

96611<br />

96732<br />

97086<br />

97525<br />

97924<br />

98239<br />

98605<br />

98991<br />

99342<br />

99695<br />

100060<br />

100505<br />

100902<br />

101334<br />

101803<br />

101821<br />

101850<br />

101868<br />

102076<br />

102400<br />

102694<br />

103027<br />

103298<br />

103610<br />

103977<br />

104468<br />

104494<br />

104538<br />

104550<br />

104572<br />

104925<br />

105202<br />

105570<br />

106006<br />

106361<br />

106788<br />

Water-surface elevation (in feet) associated with the indicated decrease in the Manning’s roughness coefficient (n)<br />

over the entire length of the main channel<br />

0 percent 5 percent 10 percent 15 percent 20 percent<br />

982.43<br />

982.32<br />

982.23<br />

982.13<br />

982.05<br />

982.45<br />

982.33<br />

982.22<br />

982.11<br />

982.03<br />

982.79<br />

982.65<br />

982.54<br />

982.41<br />

982.3<br />

983.32<br />

983.19<br />

983.08<br />

982.96<br />

982.85<br />

983.48<br />

983.36<br />

983.25<br />

983.12<br />

983<br />

983.84<br />

983.71<br />

983.6<br />

983.47<br />

983.35<br />

984.15<br />

984.03<br />

983.9<br />

983.77<br />

983.64<br />

984.34<br />

984.23<br />

984.12<br />

984<br />

983.88<br />

984.47<br />

984.36<br />

984.26<br />

984.14<br />

984.02<br />

984.63<br />

984.53<br />

984.44<br />

984.33<br />

984.22<br />

984.77<br />

984.69<br />

984.61<br />

984.53<br />

984.43<br />

984.86<br />

984.78<br />

984.7<br />

984.61<br />

984.52<br />

985.05<br />

984.97<br />

984.91<br />

984.82<br />

984.73<br />

985.39<br />

985.33<br />

985.29<br />

985.22<br />

985.14<br />

985.79<br />

985.72<br />

985.67<br />

985.59<br />

985.5<br />

986.3<br />

986.21<br />

986.16<br />

985.91<br />

985.79<br />

987.03<br />

986.94<br />

986.89<br />

986.51<br />

986.35<br />

987.58<br />

987.46<br />

987.39<br />

987.03<br />

986.84<br />

988.08<br />

987.94<br />

987.86<br />

987.55<br />

987.36<br />

988.52<br />

988.35<br />

988.25<br />

987.95<br />

987.73<br />

988.63<br />

988.47<br />

988.37<br />

988.08<br />

987.87<br />

988.69<br />

988.52<br />

988.43<br />

988.14<br />

987.94<br />

988.74<br />

988.58<br />

988.48<br />

988.19<br />

987.99<br />

989.04<br />

988.88<br />

988.76<br />

988.49<br />

988.29<br />

989.43<br />

989.26<br />

989.13<br />

988.87<br />

988.66<br />

989.81<br />

989.64<br />

989.5<br />

989.26<br />

989.06<br />

990.09<br />

989.91<br />

989.76<br />

989.52<br />

989.32<br />

990.31<br />

990.14<br />

989.98<br />

989.75<br />

989.54<br />

990.53<br />

990.35<br />

990.19<br />

989.96<br />

989.76<br />

990.73<br />

990.55<br />

990.38<br />

990.15<br />

989.94<br />

990.97<br />

990.8<br />

990.63<br />

990.41<br />

990.21<br />

990.97<br />

990.79<br />

990.63<br />

990.41<br />

990.21<br />

990.98<br />

990.8<br />

990.63<br />

990.41<br />

990.21<br />

991.03<br />

990.86<br />

990.69<br />

990.48<br />

990.29<br />

991.04<br />

990.86<br />

990.7<br />

990.49<br />

990.3<br />

991.08<br />

990.9<br />

990.74<br />

990.53<br />

990.34<br />

991.09<br />

990.91<br />

990.75<br />

990.54<br />

990.35<br />

991.1<br />

990.92<br />

990.76<br />

990.55<br />

990.37<br />

991.11<br />

990.93<br />

990.77<br />

990.57<br />

990.38<br />

991.11<br />

990.94<br />

990.78<br />

990.57<br />

990.39<br />

991.12<br />

990.95<br />

990.78<br />

990.58<br />

990.4

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