National Dam Safety Program. Kehr's Mill Trail Upper Dam (MO 11636), Missouri - Kansas City Basin, St. Louis County, Missouri. Phase I Inspection Report.
Abstract
The dam is an earth structure approximately 450 feet long along the curved alignment of the crest and is 30 feet high. The dam crest is 47 feet wide. The spillway consists of twin 36-inch corrugated metal pipes with beveled ends installed through the embankment. The beveled inlet and outlet ends of the pipes are encased in unformed poured concrete. Flow through the pipes will discharge onto a 12-foot wide concrete chute to the lower lake. There is no emergency spillway for this dam. Our inspection and evaluation indicates that the spillway does not meet the criteria set forth in the guidelines for a dam having the above size and hazard potential. The spillway will not pass the probable maximum flood without overtopping the dam but will pass 10 percent of the probable maximum flood. Based on visual observations, this dam appears to be in satisfactory condition. Deficiencies visually observed by the inspection team were erosion of the upstream face, crest, and downstream toe, trees on the downstream face, undercutting and cracking of the concrete spillway chute, and poor vegetal cover on the embankment.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1980
- Accession Number
- ADA107487
Entities
People
- Edwin R. Burton
- Harry L. Callahan
Organizations
- Black & Veatch