John P. Murtha Locks and Dam

Westmoreland County, Pennsylvania (near MONESSEN)

River/Stream: MONONGAHELA RIVER

Significant Hazard

Failure could cause economic loss or disruption

Key Facts

Dam Type
Gravity
Height
40 ft
Dam Length
701 ft
Reservoir Storage
25,100 acre-ft
Year Completed
1967
Primary Purpose
Navigation
Owner Type
Federal
Max Discharge
100,000 cfs

Condition Assessment

Not AvailableLast inspected: 2021-10-04

Hazard Classification: Significant — This describes the potential consequences of dam failure, not the likelihood of failure.

Condition Assessment: Not Available — This describes the current physical condition of the dam based on the most recent inspection.

Location

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Quick Stats

NID ID
PA00122
State
Pennsylvania (PA)
Coordinates
40.14654, -79.89951
Age
59 years

Nearby Dams

External Resources

Data sourced from the National Inventory of Dams (NID). Information may not reflect the most current status of this dam. Hazard classification reflects potential consequences of failure, not the likelihood of failure or the current condition.