In Reply Refer To: May 11, 1993
Mail Stop 415
To: Regional Hydrologists, NR, CR, SR, WR
From: Chief, Office of Surface Water
Subject: Summary of the Bridge Scour Assessment Work Group
The Bridge Scour Assessment Work Group was formed by the Office of Surface
Water (OSW) in 1991 to address technical and coordination issues relative
to scour assessment studies. The attached summary of the work group efforts
is provided as an aid to Districts conducting or planning to conduct such
scour studies. The summary contains work group findings that should be
very beneficial in maintaining standardization among studies, and provides
guidelines on approach, data-quality assurance, and quality control of
The OSW compliments the work group on its efforts that will improve the
quality of scour-assessment projects.
Please distribute the summary to Districts in your Region.
Charles W. Boning