Opekiska Lock and Dam

MONONGAHELA RIVER· Monongalia, West Virginia· Built 1967· Gravity·
Low Hazard Navigation Federal Government

Key Takeaway

Opekiska Lock and Dam is classified as low hazard in West Virginia. It was completed in 1967 and is 59 years old. Its primary use is navigation.

Physical Details

Dam Length478 ft
Dam TypeGravity
Max Storage14.4K acre-ft
Normal Storage14.4K acre-ft
Surface Area800 acres
Drainage Area2,530 sq mi
Max Discharge117,000 cfs
Year Completed1967 (59 years old)
NID IDWV06108

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

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

Emergency Action Plan: Yes
Last Inspection: August 17, 2021
State Regulated: No

Ownership

USACE - Pittsburgh District

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Opekiska Lock and Dam?

Opekiska Lock and Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Opekiska Lock and Dam?

Opekiska Lock 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 Opekiska Lock and Dam built?

Opekiska Lock and Dam was completed in 1967, making it 59 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 Opekiska Lock and Dam?

Opekiska Lock 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 Opekiska Lock and Dam last inspected?

Opekiska Lock and Dam was last inspected on August 17, 2021. 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.