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National Dam Inspection Program. Lake Jean Dam. (NDI I.D. Number PA-00570 PennDER I.D. Number 40-16) Susquehanna River Basin, Branch of Kitchen Creek, Luzerne County, Pennsylvania. Phase I Inspection Report
Lake Jean Dam is a zoned earth embankment approximately 26 feet high and 780 long, including spillway. The emergency spillway is an uncontrolled, rectangular, concrete and rock cut chute channel located at the right abutment. The crest of the spillway is 20 feet long and is spanned by a concrete bridge which supports a portion of the bituminous roadway that covers the embankment crest. Drawdown capability is provided by means of a 30-inch diameter cast iron blowoff pipe controlled at the inlet by a 30-inch diameter sluice gate. The facility consists of a main dam (Lake Jean Dam) and two appurtenant saddle dams (east and west dikes). Results of the hydrologic and hydraulic analysis indicate the facility will pass and/or store about 73 percent of the PMF prior to overtopping the east dike. Thus, based on the screening criteria contained in the recommended guidelines, the spillway is considered to be inadequate, but not seriously inadequate. Should the saddle dams be regraded to their design elevation, the spillway would then pass floods in excess of the PMF and would be considered adequate.
National Dam Inspection Program. Lake Jean Dam. (NDI I.D. Number PA-00570 PennDER I.D. Number 40-16) Susquehanna River Basin, Branch of Kitchen Creek, Luzerne County, Pennsylvania. Phase I Inspection Report
Lake Jean Dam is a zoned earth embankment approximately 26 feet high and 780 long, including spillway. The emergency spillway is an uncontrolled, rectangular, concrete and rock cut chute channel located at the right abutment. The crest of the spillway is 20 feet long and is spanned by a concrete bridge which supports a portion of the bituminous roadway that covers the embankment crest. Drawdown capability is provided by means of a 30-inch diameter cast iron blowoff pipe controlled at the inlet by a 30-inch diameter sluice gate. The facility consists of a main dam (Lake Jean Dam) and two appurtenant saddle dams (east and west dikes). Results of the hydrologic and hydraulic analysis indicate the facility will pass and/or store about 73 percent of the PMF prior to overtopping the east dike. Thus, based on the screening criteria contained in the recommended guidelines, the spillway is considered to be inadequate, but not seriously inadequate. Should the saddle dams be regraded to their design elevation, the spillway would then pass floods in excess of the PMF and would be considered adequate.
National Dam Inspection Program. Lake Jean Dam. (NDI I.D. Number PA-00570 PennDER I.D. Number 40-16) Susquehanna River Basin, Branch of Kitchen Creek, Luzerne County, Pennsylvania. Phase I Inspection Report
B. M. Mihalcin (author)
1980
107 pages
Report
No indication
English