Skip to main content
U.S. flag

An official website of the United States government

Contraction scour at a bridge over Wolf Creek, Iowa

January 1, 1995

Contraction scour at the State Highway 14 bridge over Wolf Creek in south-central Iowa was caused by a large flood on September 14 and 15, 1992. The bridge is a 30.5-m, single-span steel structure supported by vertical-wall concrete abutments with wingwalls. Approximately 6 meters of scour resulted from the flood. The peak discharge was estimated by water-surface profile analysis to be 2,200 cubic meters per second. A crude stage hydrograph is depicted by a line of gravel deposits created by water overflowing the downstream face of the highway embankment. The fall of the water surface at the bridge was 3.4 m when water began to flow over the highway.

Publication Year 1995
Title Contraction scour at a bridge over Wolf Creek, Iowa
Authors Edward E. Fischer
Publication Type Conference Paper
Publication Subtype Conference Paper
Index ID 70019245
Record Source USGS Publications Warehouse
USGS Organization Iowa Water Science Center