Rabbitt Road Swm Pond is an earth dam located in Montgomery County, Maryland, built in 1981. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 250 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 Rabbitt Road Swm Pond
The primary purpose of Rabbitt Road Swm Pond 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 City of Gaithersburg (local government). It impounds the Long Draught Branch near Gaithersburg.
The dam stands 23 feet tall and stretches 250 feet across, has a maximum storage capacity of 55 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1981, the structure is 45 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 | Gaithersburg |
| River/Stream | Long Draught Branch |
| Coordinates | 39.14077, -77.23359 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 250 ft |
| Year Completed | 1981 (45 years old) |
Storage & Hydraulics
| NID Storage | 55 acre-ft |
| Max Storage | 55 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,700 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | City of Gaithersburg |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 04/25/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00551 |
| Federal ID | MD00551 |
| More Info | State Dam Safety Program |