Maccrae Flowage is an earth dam located in Washington County, Maine, built in 1966. It carries a Low hazard potential classification.
Dam profile
NID height · 7 ft7 ft tall and 225 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 Maccrae Flowage
The primary purpose of Maccrae Flowage 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 USFWS (federal). It impounds the Tr Moose Horn.
The dam stands 7 feet tall and stretches 225 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 120 acre-feet. Completed in 1966, the structure is well into its service life at over 50 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.
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Location
| State | Maine |
| County | Washington |
| River/Stream | Tr Moose Horn |
| Coordinates | 45.09848, -67.28555 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 225 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 120 acre-ft |
| Max Storage | 120 acre-ft |
| Normal Storage | 10 acre-ft |
| Surface Area | 4 acres |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | USFWS |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00637 |
| Federal ID | ME00637 |
| More Info | State Dam Safety Program |