Scour at a bridge over the Weldon River, Iowa
By: Edward E. Fischer
Edited by: Shen Hsieh WenSu S.T.Wen Feng
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Abstract
Contraction scour at the State Highway 2 bridge over the Weldon River in south-central Iowa was caused by a flood of record proportions on September 14 and 15, 1992. The peak discharge was 1, 930 cubic meters per second,which was 4 times the probable 100-year flood used to design the bridge, and resulted in road overflow. Contraction scour exposed the pier footings, but a subsurface layer of glacial clay apparently resisted additional vertical scour and caused the scouring process to move laterally. The embankment at the left abutment was eroded away, exposing 3 m of vertical abutment piling.
Study Area
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Scour at a bridge over the Weldon River, Iowa |
| ISBN | 0872629201 |
| Issue | pt 2 |
| Year Published | 1993 |
| Language | English |
| Publisher | Publ by ASCE |
| Publisher location | New York, NY, United States |
| Contributing office(s) | Iowa Water Science Center |
| Larger Work Title | Proceedings - National Conference on Hydraulic Engineering |
| First page | 1854 |
| Last page | 1859 |
| Conference Title | Proceedings of the National Conference on Hydraulic Engineering |
| Conference Location | San Francisco, CA, USA |
| Conference Date | 25 July 1993 through 30 July 1993 |
| Country | United States |
| State | Iowa |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |