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Chart 4.Summary of Vegetative Data for <br /> Streambank Restoration,August 2016 <br /> 31,0` <br /> 32.0 <br /> Wet Herbs ■Weeds ■Upland spp. Wet Shrubs ■Bareground <br /> 3.4 Hydrologic Monitoring <br /> 3.4.1 Stream Geomorphology <br /> Streamflow was observed monthly at both the upstream and downstream sample locations in <br /> 2016, and is reported as part of the water quality data provided in Section 3.2. Channel profile <br /> and discharge measurements within the restored stream reach were collected as part of the as- <br /> built survey for the stream restoration effort, and have since been measured annually. As <br /> required by the USACE-approved mitigation plan, SME also recorded stream cross section data <br /> within the undisturbed stream reaches at the upstream and downstream ends of the project area <br /> for reference purposes. The results of the 2016 stream cross section surveys are presented Table <br /> 5 below, and drawings of cross sectional profiles are provided in Attachment E. <br /> Table 5. Stream Measurements from 2016 Geomor hic Surveys <br /> Measured Parameter Upstream Downstream Upstream Downstream <br /> Restored Restored Reference Reference <br /> Bankfull Width (ft) 24 22 47 25 <br /> Mean Bankfull Depth (ft) 1.4 0.9 1.14 1.2 <br /> Width/Depth Ratio 17.1 24.4 41.22 20.83 <br /> Appr. Floodprone Width (ft) 44 31 180 100 <br /> Entrenchment Ratio 1.8 1.4 3.83 4.0 <br /> Wetted Perimeter(ft) 25.9 23.5 48.82 26.1 <br /> Cross-sectional Area(A) (ft) 33.6 19.8 53.58 30.0 <br /> Hydraulic Radius(R) (ft) 1.3 0.8 1.1 1.1 <br /> Roughness Coefficient(n) 0.065 0.065 0.065 0.065 <br /> Channel Slope (S) 2.4% 0.4% 0.9% 1.2% <br /> Bankfull Discharge(Q)'(cfs) 83.3 9.1 58.5 39.6 <br /> Ratio of riffle/pool 63/37 62/38 30/70 74/26 <br /> 2016 Wetland Mitigation Monitoring Report 11 December 2016 <br /> Keyah Grande Gravel Pit(060002) SME Environmental,Inc. <br />