Montsweag is a concrete dam located in Lincoln County, Maine, built in 1941. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 245 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic concrete gravity section and the water level is illustrative.
About Montsweag
Montsweag is a dam in Lincoln, Maine. The dam is owned by Wiscasset (local government). It impounds the Montsweag Brook (upper) near Woolwich.
The dam stands 18 feet tall and stretches 245 feet across, creates a reservoir covering 18 acres, and has a maximum storage capacity of 196 acre-feet. Completed in 1941, the structure is well-established, with more than 75 years of service.
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 05/14/2020.
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Location
| State | Maine |
| County | Lincoln |
| Nearest City | Woolwich |
| River/Stream | Montsweag Brook (upper) |
| Coordinates | 44.00298, -69.70198 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 245 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 196 acre-ft |
| Max Storage | 196 acre-ft |
| Normal Storage | 150 acre-ft |
| Surface Area | 18 acres |
Ownership & Safety
| Purpose | Other |
| Owner | Wiscasset |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/14/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00451 |
| Federal ID | ME00451 |
| More Info | State Dam Safety Program |