Wisconsin Regional Curves Overview - USGS

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Site selection criteria • Drainage areas of less than 300 mi 2 , with majority less than 100 mi 2 • Active streamgage (or current stage-discharge relation) a priority, crest stage gages are secondary • Minimum of 10 years of streamflow record, preferably 10-20 years • Alluvial setting (no bedrock channels) • No dams • Limited local effects (culvert control, channelization, restoration). Determine acceptable extent of alterations – may change as study progresses and reconnaissance is done • Observable field indicators of bankfull stage • Give preference to “stable” streams with minimal recent aggradation or incision • Rural streams (mix of forest and agriculture) • Range of Rosgen Level II channel types • Some sites that were excluded on the first pass are now being reconsidered due to the increase in record length or changes in expectations of disturbance or wetland impacts
Site Reconnaissance • Eligible sites are field checked • 7 for 12 approval rate for north region • Identify • Reach length (20+ stream widths) • Channel stability and riffle/pools • Bankfull stage indicators • <strong>USGS</strong> reference marks for gage • Field issues (special equipment, unique surveying or pebble count technique needed, etc.) • Riparian landowners • Possible local impacts Bad River at Mellen, WI
Page 1 and 2: Wisconsin Hydraulic Geometry Region
Page 3 and 4: Cooperators/funding • started in
Page 5: Site locations
Page 9 and 10: Field Methods, continued • Bed su
Page 11 and 12: Data management and analysis • Fi
Page 13 and 14: 1,000 Preliminary Bankfull Area Kic
Page 15 and 16: 10 Preliminary Bankfull Depth N Fis
Page 17 and 18: BANKFULL CHANNEL AREA (M^2) 100 10
Page 19 and 20: Northern Lakes and Forest Proposal
Page 21 and 22: Other USGS Regional Curves • 19 o

Wisconsin Regional Curves Overview - USGS

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