Arnold Brook
Arnold Brook is an earth dam located in Aroostook County, Maine, built in 1971. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Arnold Brook
The primary purpose of Arnold 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 Arnold Brook.
The dam stands 21 feet tall and stretches 3,935 feet across, creates a reservoir covering 371 acres, has a maximum storage capacity of 5,396 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1971, the structure is well into its service life at over 50 years old.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/13/2022.
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Location
| State | Maine |
| County | Aroostook |
| River/Stream | Arnold Brook |
| Coordinates | 46.65595, -68.03994 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 3,935 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 5,396 acre-ft |
| Max Storage | 5,396 acre-ft |
| Normal Storage | 4,426 acre-ft |
| Surface Area | 371 acres |
| Drainage Area | 7 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Presque Isle |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/13/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ME00481 |
| Federal ID | ME00481 |
| More Info | State Dam Safety Program |