Brighton

Patuxent River· Montgomery, Maryland· Built 1943· Buttress· 82 ft tall
High Hazard Hydroelectric Water Supply Local Government

Key Takeaway

Brighton is classified as high hazard in Maryland. It was completed in 1943 and is 83 years old. Its primary use is hydroelectric. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 82 ft (taller than 97.1% in MD)
Dam Length995 ft
Dam TypeButtress
Max Storage19.6K acre-ft
Normal Storage17.2K acre-ft
Surface Area800 acres
Drainage Area77 sq mi
Max Discharge83,000 cfs
Year Completed1943 (83 years old)
NID IDMD00005

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

Emergency Action Plan: Yes
Last Inspection: April 7, 2022
State Regulated: Yes
Regulatory Agency: MD Dam Safety

Ownership

Washington Suburban Sanitary Commission

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Brighton?

Brighton is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Brighton?

Brighton is owned by Washington Suburban Sanitary Commission (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Brighton built?

Brighton was completed in 1943, making it 83 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 Brighton?

Brighton serves the following purposes: Hydroelectric, Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Brighton?

Brighton has a dam height of 82 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Brighton last inspected?

Brighton was last inspected on April 7, 2022. 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.