Gunners Lake (wisteria Drive) is an earth dam located in Montgomery County, Maryland, built in 1985. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 28 ft28 ft tall and 1,700 ft long, taller than 62% of U.S. dams with a recorded height. 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 Gunners Lake (wisteria Drive)
The primary purpose of Gunners Lake (wisteria Drive) is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Montgomery County Dep (local government). It impounds the Gunners Branch.
The dam stands 28 feet tall and stretches 1,700 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 646 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1985, the structure is 41 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/05/2022.
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Location
| State | Maryland |
| County | Montgomery |
| River/Stream | Gunners Branch |
| Coordinates | 39.16230, -77.25680 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 1,700 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 646 acre-ft |
| Max Storage | 646 acre-ft |
| Normal Storage | 145 acre-ft |
| Surface Area | 20 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2,580 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Montgomery County Dep |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/05/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00305 |
| Federal ID | MD00305 |
| More Info | State Dam Safety Program |