USDA Forest Service

Pacific Southwest Research Station

Pacific Southwest
Research Station

800 Buchanan Street
Albany, CA 94710-0011
(510) 883-8830
United States Department of Agriculture Forest Service. USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.

Improving road erosion modeling for the Lake Tahoe Basin and evaluating BMP strategies for fine sediment reduction at watershed scales

Principal Investigators:
Randy Foltz, USDA Forest Service-Rocky Mountain Research Station
Bill Elliot, USDA Forest Service-Rocky Mountain Research Station
Woodam Chung, University of Montana
Hakjun Rhee, University of Montana

Proposal [pdf]

Final Report—Improving WEPP [pdf]
Final Report—Field experiment and modeling results [pdf]

Additional Reports:
Copeland and Foltz 2009 [pdf]
Foltz et al. 2011 [pdf]

User Manual:
Forest road BMP planning decision support tool [pdf]

Please contact Bill Elliot with questions regarding the final reports.

Project Summary

This project parameterized the Watershed Erosion Prediction Project (WEPP) model, improved the WEPP: Road interface, and validated the WEPP model for the Lake Tahoe Basin. The project also developed a GIS-based quantitative approach to predict sediment loading using WEPP: Road, identified erosional “hot spots” from a watershed-scale road network, and determined the optimal road network design that minimizes sediment production through best management practice (BMP) application.