UC San Diego Library – Scripps Digital Collection

This Fish Bulletin describes the methodology for the use of log and boulder weirs in California rivers and streams. This report does not replace Part XII Fish Passage Design and Implementation of the California Salmonid Stream Habitat Restoration Manual (Flosi et al. 2010). The intent of this report is to supplement Part XII and describe the use of log and boulder weirs to improve instream habitat, beyond the need for fish passage. This report provides a review of current literature on the subject, combined with input from California Department of Fish and Wildlife scientists and engineers, and others with experience and expertise in the subject.