Plumgar I Regional Swm Dam

Great Seneca Creek· Montgomery, Maryland· Built 1989· Earth· 24 ft tall
Low Hazard Flood Risk Reduction Recreation Private

Key Takeaway

Plumgar I Regional Swm Dam is classified as low hazard in Maryland. It was completed in 1989 and is 37 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 24 ft (taller than 57.8% in MD)
Dam TypeEarth
Max Storage64 acre-ft
Normal Storage41 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
Year Completed1989 (37 years old)
Year Modified1989
NID IDMD00517

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: No
Last Inspection: February 10, 2016
State Regulated: Yes
Regulatory Agency: MD Dam Safety

Ownership

M-NCPPC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Plumgar I Regional Swm Dam?

Plumgar I Regional Swm 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 Plumgar I Regional Swm Dam?

Plumgar I Regional Swm Dam is owned by M-NCPPC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Plumgar I Regional Swm Dam built?

Plumgar I Regional Swm Dam was completed in 1989, making it 37 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 Plumgar I Regional Swm Dam?

Plumgar I Regional Swm Dam serves the following purposes: Flood Risk Reduction, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Plumgar I Regional Swm Dam?

Plumgar I Regional Swm Dam has a dam height of 24 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 Plumgar I Regional Swm Dam last inspected?

Plumgar I Regional Swm Dam was last inspected on February 10, 2016. 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.