Wheaton Branch Storm Water Management

Sligo Creek-TR· Montgomery, Maryland· Built 1979· Earth· 27 ft tall
High Hazard Flood Risk Reduction Local Government

Key Takeaway

Wheaton Branch Storm Water Management is classified as high hazard in Maryland. It was completed in 1979 and is 47 years old. Its primary use is flood risk reduction. 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 27 ft (taller than 67.4% in MD)
Dam Length1,174 ft
Dam TypeEarth
Max Storage196 acre-ft
Normal Storage11 acre-ft
Surface Area3 acres
Drainage Area1 sq mi
Max Discharge7,825 cfs
Year Completed1979 (47 years old)
NID IDMD00127

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: December 23, 2021
State Regulated: Yes
Regulatory Agency: MD Dam Safety

Ownership

Montgomery County DEP

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Wheaton Branch Storm Water Management?

Wheaton Branch Storm Water Management 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 Wheaton Branch Storm Water Management?

Wheaton Branch Storm Water Management is owned by Montgomery County DEP (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Wheaton Branch Storm Water Management built?

Wheaton Branch Storm Water Management was completed in 1979, making it 47 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 Wheaton Branch Storm Water Management?

Wheaton Branch Storm Water Management serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Wheaton Branch Storm Water Management?

Wheaton Branch Storm Water Management has a dam height of 27 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 Wheaton Branch Storm Water Management last inspected?

Wheaton Branch Storm Water Management was last inspected on December 23, 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.