National Dam Safety Program. Rothwell Lake Dam (MO 10004), Grand - Chariton River Basin, Randolph County, Missouri. Phase I Inspection Report.
Abstract
The overall structural safety of the dam is not up to acceptable standards in view of needed repairs to the downstream slope. While the condition does not appear to jeopardize the safety of the dam under normal operating conditions, particularly in view of its performance since the 1967 overtopping incident, it does pose a relatively high hazard. While the dam does not exhibit signs of structural instability, prompt action should, nevertheless, be taken to repair the damage. Based on the criteria in the guidelines, the dam is in the high hazard potential classification, which means that loss of life and appreciable property loss could occur in the event of failure of the dam. Our inspection and evaluation indicates that the spillway of Rothwell Lake Dam does not meet the criteria set forth in the guidelines for a dam having the above size and hazard potential. Since there is high hazard potential downstream of the dam, the appropriate spillway design flood for this dam is the Probable Maximum Flood. It was determined that the reservoir/spillway system can accommodate 20 percent of the Probable Maximum Flood without overtopping the dam. Our evaluation indicates that he reservoir/spillway system will accommodate the 100-year flood without overtopping.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1979
- Accession Number
- ADA104723
Entities
People
- Walter G. Shifrin