Sleeper
Sleeper is a stone dam located in Androscoggin County, Maine, built in 1850. It carries a Significant hazard potential classification and has a poor condition assessment.
About Sleeper
The primary purpose of Sleeper is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Sabattus (local government). It impounds the Hooper Brook near Sabattus.
The dam stands 10 feet tall and stretches 80 feet across, creates a reservoir covering 2,050 acres, has a maximum storage capacity of 4,200 acre-feet, and collects water from a drainage area of 34 square miles. Completed in 1850, the structure is one of the older dams in the region, with over a century and a half 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 05/30/2024.
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Location
| State | Maine |
| County | Androscoggin |
| Nearest City | Sabattus |
| River/Stream | Hooper Brook |
| Coordinates | 44.12228, -70.10791 |
Physical Characteristics
| Dam Type | Stone |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 80 ft |
| Year Completed | 1850 (176 years old) |
Storage & Hydraulics
| NID Storage | 4,200 acre-ft |
| Max Storage | 4,200 acre-ft |
| Normal Storage | 3,600 acre-ft |
| Surface Area | 2,050 acres |
| Drainage Area | 34 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Sabattus |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 05/30/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ME00014 |
| Federal ID | ME00014 |
| More Info | State Dam Safety Program |