TY - RPRT TI - Clear-Water Contraction Scour at Selected Bridge Sites in the Black Prairie Belt of the Coastal Plain in Alabama, 2006 AU - K.G. Lee AU - T.S. Hedgecock PY - 2008 DO - 10.3133/sir20075260 UR - https://pubs.usgs.gov/publication/sir20075260 ID - sir20075260 ER -