Burnt Mills Dam
Burnt Mills Dam is a dam located in Montgomery County, Maryland, built in 1930. It carries a Significant hazard potential classification and has a fair condition assessment.
About Burnt Mills Dam
The primary purpose of Burnt Mills Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mncppc-burnt Mills (local government). It impounds the Northwest Branch near Us Rte 29.
The dam stands 23 feet tall and stretches 230 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 97 acre-feet, and collects water from a drainage area of 26 square miles. Completed in 1930, the structure is well-established, with more than 75 years of service.
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 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 05/03/2023.
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Location
| State | Maryland |
| County | Montgomery |
| Nearest City | Us Rte 29 |
| River/Stream | Northwest Branch |
| Coordinates | 39.03102, -77.00654 |
Physical Characteristics
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 230 ft |
| Year Completed | 1930 (96 years old) |
Storage & Hydraulics
| NID Storage | 97 acre-ft |
| Max Storage | 97 acre-ft |
| Normal Storage | 38 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 26 sq mi |
| Max Discharge | 12,285 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | MNCPPC-Burnt Mills |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 05/03/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00227 |
| Federal ID | MD00227 |
| More Info | State Dam Safety Program |