Bar Mills is a concrete dam located in York County, Maine, built in 1956. It carries a Low hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 460 ft long, taller than 50% 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 concrete gravity section and the water level is illustrative.
About Bar Mills
The primary purpose of Bar Mills is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Brookfield Renewable Power LLC Nyro (private). It impounds the Saco River near Buxton.
The dam stands 25 feet tall and stretches 460 feet across, creates a reservoir covering 263 acres, has a maximum storage capacity of 600 acre-feet, and collects water from a drainage area of 1,595 square miles. Completed in 1956, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 09/19/2018.
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Location
| State | Maine |
| County | York |
| Nearest City | Buxton |
| River/Stream | Saco River |
| Coordinates | 43.61320, -70.55310 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 460 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 600 acre-ft |
| Max Storage | 600 acre-ft |
| Normal Storage | 600 acre-ft |
| Surface Area | 263 acres |
| Drainage Area | 1,595 sq mi |
| Max Discharge | 16,320 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Brookfield Renewable Power LLC Nyro |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/19/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00034 |
| Federal ID | ME00034 |
| More Info | State Dam Safety Program |