Accession Number : ADA105274
Title : National Dam Safety Program. Junior Lake Dam, (MO 11526) Missouri - Kansas City Basin, Callaway County, Missouri. Phase I Inspection Report.
Descriptive Note : Final rept.,
Corporate Author : HOSKINS-WESTERN-SONDEREGGER INC LINCOLN NE
Personal Author(s) : Decker,Rey S ; Jamison,Gordon ; Ulmer,Garold ; Hoskins,Harold P
Report Date : Oct 1980
Pagination or Media Count : 84
Abstract : The dam is an earthfill structure approximately 13 feet in height and 717 feet in length constructed in an L shape with about 227 feet extending across the old channel on the south end and about 490 feet extending parallel to the railroad along the east side. The spillway consists of a reinforced concrete weir and ogee chute and apron section located on the right end of the south leg of the dam. The weir section is 163 feet wide. Our inspection and evaluation indicates that the spillway does not meet the criteria set forth in the recommended guidelines for a small dam having a high hazard potential. The spillway will pass 10% of the Probable Maximum Flood (PMF) without overtopping the dam. Junior Lake Dam is in very poor condition and has a serious potential of failure due to severe erosional damage of the upstream face and the crest; rodent burrows; dense tree and brush growth on the crest and downstream slope; and a severely inadequate spillway. There apparently has been little maintenance work done on this dam.
Descriptors : *EARTH DAMS , STABILITY , HYDROLOGY , DEFICIENCIES , SAFETY , VISUAL INSPECTION , FLOODING , RESERVOIRS , MISSOURI
Subject Categories : Hydrology, Limnology and Potamology
Distribution Statement : APPROVED FOR PUBLIC RELEASE