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1 <br />Table 5. (Continued) <br /> <br /> Thalweg Water Surface Channel Bed Ice Cover <br />Cross Section Elevation Elevation Ice Thicl~ess Roughness Roughness Cross Section <br />(River Mile) (ft MSL) (ft MSL) (ft) (Manning's n) (Manning's n) Type <br />309.27 4730.9 4737.2 0.8 0.036 0.030 S <br />310.00 4732.5 4739.1 0.8 0.036 0.030 S <br />310.59 4733.7 4740.3 0.8 0.036 0.030 S <br />310.89 4733.7 4741.2 0.8 0.036 0.030 S <br />310.95 4734.7 4741.4 0.8 0.036 0.030 S ' <br />311.04 4733.5 4741.7 0.8 0.036 0.030 S <br />311.18 4736.3 4742.2 0.8 0.036 0.030 S <br />311.50 4738.6 4743.7 0.8 0.036 0.030 S <br />311.68 4735.7 4744.2 open water 0.036 S <br />312.40 4739.0 4744.9 open water 0.036 E <br />313.40 4743.0 4747.2 open water 0.036 E <br /> <br />314.50 <br />4749.0 <br />4753.7 <br />open water <br />0.036 <br />E ' <br />316.60 4756.1 4761.4 open water 0.036 E <br /> <br />'S indicates surveyed, E indicates estimated from topographic map <br />32 <br /> <br /> <br /> <br /> <br /> <br />t <br /> <br /> <br /> <br /> <br /> <br /> <br />