Braddock Locks and Dam

MONONGAHELA RIVER· Allegheny, Pennsylvania· Built 1905· Gravity·
Significant Hazard Navigation Federal Government

Key Takeaway

Braddock Locks and Dam is classified as significant hazard in Pennsylvania. It was completed in 1905 and is 121 years old. Its primary use is navigation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Length960 ft
Dam TypeGravity
Max Storage13.7K acre-ft
Normal Storage13.7K acre-ft
Surface Area1,190 acres
Drainage Area7,342 sq mi
Max Discharge110,000 cfs
Year Completed1905 (121 years old)
NID IDPA00120

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: May 5, 2023
State Regulated: No

Ownership

USACE - Pittsburgh District

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Braddock Locks and Dam?

Braddock Locks and Dam is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Braddock Locks and Dam?

Braddock Locks and Dam is owned by USACE - Pittsburgh District (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Braddock Locks and Dam built?

Braddock Locks and Dam was completed in 1905, making it 121 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Braddock Locks and Dam?

Braddock Locks and Dam serves the following purposes: Navigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was Braddock Locks and Dam last inspected?

Braddock Locks and Dam was last inspected on May 5, 2023. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.