Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
National Dam Safety Program. Mine Lake Dam (Inventory Number NY 767), Lower Hudson River Basin, Orange County, New York. Phase I Inspection Report
This report provides information and analysis on the physical condition of the dam as of the report date. Information and analysis are based on visual inspection of the dam by the performing organization. Mine Lake Dam is classified as a small dam with a significant hazard potential. The dam is constructed of masonry and is 13.9 feet high and 516 feet in length. Over 300 feet of the dam's length is less that 8 feet in height. The dam's reservoir is only 25 acres. Popolopen Dam is located one mile above Mine Lake, while Stilwell Dam and reservoir is located a few hundred feet below Mine Lake Dam. The drainage area of the dam is 8.7 square miles. The structure forms an impoundment which is used for recreational purposes on the West Point Military Reservation. Hydrology computations prepared according to the Corps of Engineers' screening criteria establishes the spillway capacity of 1,492 cfs at 9.9 percent of the PMF with the PMF discharge at 15,070 cfs and the 1/2 PMF discharge at 7,170 cfs. Since the spillway cannot pass the 1/2 PMF discharge without overtopping the dam, the spillway is inadequate. The stability analysis determined three loading cases where the dam was unstable. Each of these cases involved uplift on the base of the dam due to hydrostatic forces in combination with the PMF, seismic loadings or ice loadings. Only the ice load occurs in a normal operating situation. The condition of uplift is plausible since seepage was observed at the juncture of the masonry spillway with the bedrock.
National Dam Safety Program. Mine Lake Dam (Inventory Number NY 767), Lower Hudson River Basin, Orange County, New York. Phase I Inspection Report
This report provides information and analysis on the physical condition of the dam as of the report date. Information and analysis are based on visual inspection of the dam by the performing organization. Mine Lake Dam is classified as a small dam with a significant hazard potential. The dam is constructed of masonry and is 13.9 feet high and 516 feet in length. Over 300 feet of the dam's length is less that 8 feet in height. The dam's reservoir is only 25 acres. Popolopen Dam is located one mile above Mine Lake, while Stilwell Dam and reservoir is located a few hundred feet below Mine Lake Dam. The drainage area of the dam is 8.7 square miles. The structure forms an impoundment which is used for recreational purposes on the West Point Military Reservation. Hydrology computations prepared according to the Corps of Engineers' screening criteria establishes the spillway capacity of 1,492 cfs at 9.9 percent of the PMF with the PMF discharge at 15,070 cfs and the 1/2 PMF discharge at 7,170 cfs. Since the spillway cannot pass the 1/2 PMF discharge without overtopping the dam, the spillway is inadequate. The stability analysis determined three loading cases where the dam was unstable. Each of these cases involved uplift on the base of the dam due to hydrostatic forces in combination with the PMF, seismic loadings or ice loadings. Only the ice load occurs in a normal operating situation. The condition of uplift is plausible since seepage was observed at the juncture of the masonry spillway with the bedrock.
National Dam Safety Program. Mine Lake Dam (Inventory Number NY 767), Lower Hudson River Basin, Orange County, New York. Phase I Inspection Report
J. B. Stetson (Autor:in)
1980
91 pages
Report
Keine Angabe
Englisch