Stream-Profile Analyses Using a Step-Backwater Model for ... - USGS
Stream-Profile Analyses Using a Step-Backwater Model for ... - USGS
Stream-Profile Analyses Using a Step-Backwater Model for ... - USGS
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76 <strong>Stream</strong>-<strong>Profile</strong> <strong>Analyses</strong> <strong>Using</strong> a <strong>Step</strong>-<strong>Backwater</strong> <strong>Model</strong> <strong>for</strong> Selected Reaches in the Chippewa Creek Basin in Ohio<br />
Elevation, in feet above North American Vertical Datum of 1988<br />
959<br />
958<br />
957<br />
956<br />
955<br />
954<br />
953<br />
952<br />
951<br />
950<br />
949<br />
948<br />
947<br />
946<br />
945<br />
944<br />
943<br />
942<br />
941<br />
940<br />
939<br />
S Main St<br />
Private road<br />
0 2000 4000 6000 8000 10000 12000 14000 16000 18000<br />
SR 604 / Easton Rd<br />
Distance upstream of the mouth, in feet<br />
EXPLANATION<br />
WS elevation<br />
WS elev after 5% reduction<br />
to the channel n<br />
WS elev after 10% reduction<br />
to the channel n<br />
WS elev after 15% reduction<br />
to the channel n<br />
WS elev after 20% reduction<br />
to the channel n<br />
Minimum channel elevation<br />
Hydraulic structure<br />
Figure 3–3. Computed water-surface profiles <strong>for</strong> a bankfull discharge with Manning’s roughness coefficients in the main<br />
channel at current values and reduced by 5, 10, 15, and 20 percent on Little Chippewa Creek in Wayne County, Ohio.<br />
(WS, water surface; %, percent; n, Manning’s roughness coefficient)
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