National Dam Safety Program. Eshbaugh-Martin Dam No name 550 (MO 30711), Mississippi - Kaskaskia - St. Louis Basin, Washington County, Missouri. Phase I Inspection Report.
Abstract
This dam is classified as being of large size. The St. Louis District Corps of Engineers has classified this dam to have a high downstream hazard potential. Failure of this dam could threaten life and property. The results of the inspection and evaluation indicate that the spillway does not meet the criteria given in the Guidelines for a dam with the size and hazard potential of No Name 550 Dam. It is calculated that the spillway can pass a 100-year flood without overtopping the dam. It was also estimated that the spillway could pass 90 percent of the PMF without overtopping the dam and without significant erosion of the embankment. However, flows greater than 32 percent of the PMF would cause significant erosion of the wing dam constriction. Adequate overflow facilities and freeboard should be provided so that the impoundment can handle the PMF without overtopping the crest and without significant erosion of the embankment or spillway. Gravel has been mined from the dam crest. This has the effect of reducing available freeboard and the dam's ability to retain runoff. This is a deficiency which should be corrected.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1979
- Accession Number
- ADA106599
Entities
People
- Donald E. Westcott
- James H. Gray
- Kenneth B. King