Plumgar I Regional Swm Dam
Plumgar I Regional Swm Dam is an earth dam located in Montgomery County, Maryland, built in 1989. It carries a Low hazard potential classification.
About Plumgar I Regional Swm Dam
The primary purpose of Plumgar I Regional Swm Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by M-ncppc (local government). It impounds the Great Seneca Creek near Montgomery Village.
The dam stands 24 feet tall, creates a reservoir covering 1 acres, has a maximum storage capacity of 64 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1989, the structure is 37 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 04/25/2023.
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Location
| State | Maryland |
| County | Montgomery |
| Nearest City | Montgomery Village |
| River/Stream | Great Seneca Creek |
| Coordinates | 39.17582, -77.22589 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Year Completed | 1989 (37 years old) |
Storage & Hydraulics
| NID Storage | 64 acre-ft |
| Max Storage | 64 acre-ft |
| Normal Storage | 41 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | M-NCPPC |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 04/25/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00517 |
| Federal ID | MD00517 |
| More Info | State Dam Safety Program |