Mahoning Creek Dam, also known as Mahoning Creek Lake, is a gravity type dam located in Putneyville, Pennsylvania.
Wind
Humidity
Built in 1941 by the US Army Corps of Engineers, the dam serves a primary purpose of flood risk reduction while also providing benefits for fish and wildlife, recreation, and water storage. With a structural height of 162 feet and a length of 926 feet, the dam has a storage capacity of 94,000 acre-feet and covers a surface area of 280 acres.
The dam's spillway width of 150 feet and controlled spillway type help manage water levels during high flow events, with a maximum discharge capacity of 103,000 cubic feet per second. Despite its high hazard potential, the dam is regularly inspected and monitored to ensure its structural integrity and reduce flood risks. The US Army Corps of Engineers implements risk management measures, including emergency action plans, regular maintenance, and public outreach, to address potential dam-related emergencies and enhance community preparedness.
As a critical infrastructure for flood mitigation in the region, Mahoning Creek Dam plays a vital role in protecting surrounding communities from potential flooding events. The dam's risk management strategies and ongoing maintenance efforts demonstrate a commitment to ensuring the safety and resilience of the dam and the surrounding area in the face of changing climate patterns and extreme weather events.
Year Completed |
1941 |
Dam Length |
926 |
River Or Stream |
MAHONING CREEK |
Primary Dam Type |
Gravity |
Surface Area |
280 |
Hydraulic Height |
162 |
Drainage Area |
340 |
Nid Storage |
94000 |
Structural Height |
162 |
Outlet Gates |
Slide (sluice gate) - 6, Valve - 4, Vertical Lift - 5 |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
162 |