Analysis of Sediment Yield from Unpaved Roads

Phase I: Unpaved Roads Inventory Field Data Collection  subwatershed scale  ~90 miles of roads  diversity of land use/cover  area of public buy-in  line and point features

Data Collection  Line Feature –Road  Point Feature –Culvert –Cross Drain –Wing Ditch –Bridge –Etc.

Data Dictionary: Road Segment

Data Dictionary: Culvert Stream Crossing

Slab Stream Crossings

Phase II: Sediment Yield Modeling Field Data Collection  On 10% of Inventoried Roads  Stratified Random Sample  Stratified by # of Lanes, Ditch Erosion  Results are Extrapolated to other Roads

Workshop Format  Introduction to Rivers  Importance of Roads & Sediment Delivery  WCRC  Road Construction & maintenance BMPs

Field Demonstrations  on site  partners  materials & equipment  site selection process

Discussion