DEVELOPMENT OF SCOUR CHANNEL AFTER SPILLWAY FAILURE.

Misganaw Demissie, Vassilios Tsihrintzis, William C. Bogner, Nani G. Bhowmik

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In November 1985 parts of the spillway which controlled the water level in Lake Charleston failed during a moderate flood event. The spillway failure resulted in formation of a large 'sinkhole' (scour hole) at the upstream side of the spillway. The sinkhole gradually migrated upstream from the spillway to the diversion channel, which is very close to the dike in several places. The upstream migration of the scour hole formed a deep channel much lower than the original lake bottom. The portion of the old lake outside the side channel reservoir was drained, with the streamflow confined in the new channel. This exposed the pump intake used to supply water to the side channel reservoir and threatened the stability of the side channel reservoir dike. This paper presents the results of a hydraulic study which included field data collection and mathematical modeling to investigate the development of the scour channel and the problems associated with it.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
PublisherASCE
Pages511-516
Number of pages6
ISBN (Print)0872626105
StatePublished - Jan 1 1987

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Demissie, M., Tsihrintzis, V., Bogner, W. C., & Bhowmik, N. G. (1987). DEVELOPMENT OF SCOUR CHANNEL AFTER SPILLWAY FAILURE. In Unknown Host Publication Title (pp. 511-516). ASCE.