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National Dam Safety Program. Little Choconut Watershed Site 2B Dam (Inventory Number 721), Susquehanna River Basin, Broome County, New York. Phase I Inspection Report
Little Choconut Watershed Site 2B Dam is one of eight floodwater retarding dams in the Little Choconut, Finch Hollow, and Trout Brook watersheds designed to reduce floodwater damages. The dam embankment is approximately 790 feet long angling slightly downstream, 56 feet high and has an upstream slope of 3 horizontal to 1 vertical and a downstream slope of 2.5 to 1. The principal spillway is a drop inlet structure consisting of a single stage reinforced concrete riser, a 30 inch diameter prestressed concrete cylinder pipe and a reinforced concrete impact basin. The emergency spillway is a 380 foot long by 55 foot wide channel cut into rock at the right abutment. Hydrologic/hydraulic analyses performed in accordance with the Corps of Engineers' Recommended Guidelines for Safety Inspection of Dams indicate that the principal spillway and the emergency spillway would pass 100 percent of the outflow from the Probable Maximum Flood (PMF) without overtopping the dam. Therefore, the combined spillway capacity is adjudged to be adequate.
National Dam Safety Program. Little Choconut Watershed Site 2B Dam (Inventory Number 721), Susquehanna River Basin, Broome County, New York. Phase I Inspection Report
Little Choconut Watershed Site 2B Dam is one of eight floodwater retarding dams in the Little Choconut, Finch Hollow, and Trout Brook watersheds designed to reduce floodwater damages. The dam embankment is approximately 790 feet long angling slightly downstream, 56 feet high and has an upstream slope of 3 horizontal to 1 vertical and a downstream slope of 2.5 to 1. The principal spillway is a drop inlet structure consisting of a single stage reinforced concrete riser, a 30 inch diameter prestressed concrete cylinder pipe and a reinforced concrete impact basin. The emergency spillway is a 380 foot long by 55 foot wide channel cut into rock at the right abutment. Hydrologic/hydraulic analyses performed in accordance with the Corps of Engineers' Recommended Guidelines for Safety Inspection of Dams indicate that the principal spillway and the emergency spillway would pass 100 percent of the outflow from the Probable Maximum Flood (PMF) without overtopping the dam. Therefore, the combined spillway capacity is adjudged to be adequate.
National Dam Safety Program. Little Choconut Watershed Site 2B Dam (Inventory Number 721), Susquehanna River Basin, Broome County, New York. Phase I Inspection Report
H. C. Flaherty (author)
1981
188 pages
Report
No indication
English