Survey and Assessment
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Valley Type: Understand the initial indication of river morphology (Narrow, deep, and steep or Wide, shallow, and flat)
Stream Channel Dimensions: Riffle, pool, and glide cross-sections for floodplain width, channel width, depth, area, and bank height ratio
Stream Channel Patterns: Historical Aerial Photography- Radius of Curvature and Sinuosity
Stream Channel Profile: Longitudinal thalweg survey, stream, and bankfull slope, pool-to-pool spacing, riffle length
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Interpreting the condition of the stream is essential to understand the stream's natural tendencies, and restoration should complement, not compete with those tendencies.
Evolutionary Channel Adjustments: Review bank height ratio, width/depth ratio, and entrenchment ratio with topographic maps, land use, and site visits to determine what is causing the stream to change at an accelerated rated.
Streambank Erosion Potential: Pfanckuch
Channel Stability
Depositional Pattern: Review channel bars, sediment size in pools, sediment size on bankfull,
Aggradation/Degradation Trends: Changes in slope (culverts/dams/embankments), changes in sinuosity (channelization), change in width/depth ratio (narrow, deep and steep will transport larger material whereas wide, shallow, and flat will be more fine-grained depositing materials)
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Permittee-responsible mitigation: In Minnesota and Michigan, the permittee is responsible for offsetting the stream impacts of the proposed project.
Survey SQT parameters: Hydrology, Hydraulics, Geomorphology, Physicochemical, and Biological parameters will be assessed using standard geomorphic survey methods.
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Class schedule and descriptions coming soon!