National Dam Safety Program. Deerwood Lake Number 3 Dam (MO 30460), Upper Mississippi - Kaskaskia - St. Louis Basin, Jefferson County, Missouri. Phase I Inspection Report.
Abstract
Results of a hydrologic/hydraulic analysis indicated that the spillway is adequate to pass lake outflow resulting from the 100-year frequency flood and the lake outflow corresponding to about 30 percent of the PMF lake inflow without overtopping the dam. According to the St. Louis District, Corps of Engineers, the length of the downstream flood damage zone, should failure of the dam occur, is estimated to be two miles. Accordingly, within the possible damage zone are four dwellings, Dam No. 30431, and two farm buildings. According to the Corps of Engineers, Dam No. 30431 has a significant hazard classification. A review of available data did not disclose that seepage or stability analysis of the dam were performed. This is considered a deficiency and should be rectified.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1981
- Accession Number
- ADA104711