PROMPTON RESERVOIR

RESERVOIR LEVELS
December 21, 2024
1,200 ft 41.59, -75.33


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Located in Wayne, Pennsylvania, Prompton Dam, also known as Prompton Lake, is a federal-owned structure managed by the US Army Corps of Engineers. Built in 1961, this earth-type dam stands at a structural height of 140 feet with a hydraulic height of 127 feet, creating a reservoir with a maximum storage capacity of 72,800 acre-feet. The primary purpose of Prompton Dam is flood risk reduction, with additional benefits for recreation.

Despite being classified as a high hazard potential dam, extensive risk management measures have been implemented to enhance its safety. In 2012, modifications were made to increase the spillway's flow capacity and raise the dam's height, reducing the risk of overtopping during extreme flood events. Regular inspections, monitoring, and emergency preparedness protocols are in place to ensure the dam's structural integrity and mitigate potential risks to downstream communities such as Honesdale and Hawley. These efforts demonstrate the commitment of the US Army Corps of Engineers to safeguarding water resources and protecting against the impacts of climate-related events.

Elevation Of Reservoir Water Surface Above Datum, Ft 24hr Change -0.02%
Percent of Normal 100%
Minimum 1,121.53 ft
2020-07-07
Maximum 1,133.94 ft
2022-04-08
Average 1,126 ft
Hydraulic_Height 127
Drainage_Area 60
Year_Completed 1961
Nid_Storage 72800
Structural_Height 140
Primary_Dam_Type Earth
Foundations Rock, Soil
Surface_Area 290
Outlet_Gates Uncontrolled - 0
River_Or_Stream LACKAWAXEN RIVER
Dam_Length 1200
Hazard_Potential High
Nid_Height 140
Reservoir Levels

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