Seneca Meadows Swm Dam (seneca Meadows Pkwy) is an earth dam located in Montgomery County, Maryland, built in 1994. It carries a Low hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 17 ft17 ft tall and 500 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Seneca Meadows Swm Dam (seneca Meadows Pkwy)
The primary purpose of Seneca Meadows Swm Dam (seneca Meadows Pkwy) 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 Westphalia Center II Ltd Ptn (private). It impounds the Seneca Creek near Germantown.
The dam stands 17 feet tall and stretches 500 feet across, has a maximum storage capacity of 58 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1994, the structure is 32 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 04/09/2024.
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Location
| State | Maryland |
| County | Montgomery |
| Nearest City | Germantown |
| River/Stream | Seneca Creek |
| Coordinates | 39.19369, -77.25948 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 17 ft |
| Dam Height | 17 ft |
| Dam Length | 500 ft |
| Year Completed | 1994 (32 years old) |
Storage & Hydraulics
| NID Storage | 58 acre-ft |
| Max Storage | 58 acre-ft |
| Drainage Area | 0 sq mi |
| Max Discharge | 619 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Westphalia Center II Ltd Ptn |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/09/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00543 |
| Federal ID | MD00543 |
| More Info | State Dam Safety Program |