John P. Murtha Locks And Dam

Significant HazardNot Available ConditionEmergency Action Plan: Yes

Location

StatePennsylvania
CountyWestmoreland
Nearest CityMONESSEN
River/StreamMONONGAHELA RIVER
Coordinates40.14654, -79.89951

Physical Characteristics

Dam TypeGravity
NID Height40 ft
Dam Length701 ft
Year Completed1967 (59 years old)

Storage & Hydraulics

NID Storage25,100 acre-ft
Max Storage25,100 acre-ft
Normal Storage25,100 acre-ft
Surface Area1,660 acres
Drainage Area5,214 sq mi
Max Discharge100,000 cfs
Spillway TypeControlled

Ownership & Safety

PurposeNavigation
OwnerUSACE - Pittsburgh District
Owner TypeFederal
Hazard ClassificationSignificant
Condition AssessmentNot Available
Last Inspection10/04/2021
Emergency Action PlanYes

Identifiers

NID IDPA00122
Federal IDPA00122
More InfoState Dam Safety Program

Nearby Dams

Maple Creek Silt Pond A 5.0 mi High Maple Creek Silt Pond B 5.0 mi High Maple Creek #3 Slurry Pond #1 5.2 mi High Maple Creek #3 Slurry Pond #2 5.7 mi High Mathies Mine Refuse Area Pond #2 6.0 mi High Mathies Sediment Pond No 5 6.1 mi Significant Maple Creek Slurry Pond 1 6.1 mi High Raw Water Pond 6.2 mi Low Treated Water Pond 6.3 mi High Maple Creek Slurry Pond No 2 - A 6.5 mi High