Alder Brook is an earth dam located in Aroostook County, Maine, built in 1973. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 1,075 ft long, taller than 80% of U.S. dams with a recorded height. 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 Alder Brook
The primary purpose of Alder Brook 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 Presque Isle (local government). It impounds the Alder Brook.
The dam stands 35 feet tall and stretches 1,075 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 2,750 acre-feet, and collects water from a drainage area of 15 square miles. Completed in 1973, 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.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Maine |
| County | Aroostook |
| River/Stream | Alder Brook |
| Coordinates | 46.63005, -68.10908 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 1,075 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 2,750 acre-ft |
| Max Storage | 2,750 acre-ft |
| Normal Storage | 250 acre-ft |
| Surface Area | 16 acres |
| Drainage Area | 15 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Presque Isle |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00484 |
| Federal ID | ME00484 |
| More Info | State Dam Safety Program |