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APPENDIX 6.4.7-A2 <br /> 4 <br /> a _ <br /> 1 r , <br /> f <br /> t 5! <br /> 1 <br /> - 1 1 <br /> Figure 5: Proposed terrain surface used to cut cross sections from <br /> 6TR_1A_Lower Plan 1)ArnenPd_PC_MlxPlant 2)ExistingConditions <br /> 48401 Legend <br /> Ground-ExtstingCondtions <br /> heft-ExstngCnndlaons <br /> 4830 • <br /> Bank Ste-FxslklgCondtions <br /> -AwnP4 PC 1.ImPlant <br /> Ground-AwnPit PC IdaPlent <br /> 4820 ♦_ _ <br /> Neff-AnwPti — <br /> PC AKPlant <br /> Bank Ste-AmettPt_PC_MwPlant <br /> 4810 <br /> 4800 <br /> 4790 <br /> 4780 <br /> 0 500 1000 140 2000 _...: <br /> Station(Si) <br /> Figure 6: Geometry comparison shown for cross section 79955, the pink line shows existing <br /> terrain while the black shows proposed terrain <br /> Manning's n Roughness Values <br /> The existing conditions model used the roughness values from the original model created by <br /> AECOM in Denver. Roughness values were reviewed and deemed appropriate for use in this <br /> model. The channel roughness values vary from 0.033 to 0.035, and the overbanks roughness <br />