Spragues Mill is a concrete dam located in Penobscot County, Maine, built in 1955. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 14 ft14 ft tall and 110 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 Spragues Mill
The primary purpose of Spragues Mill is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Corinna (local government). It impounds the Alder Stream.
The dam stands 14 feet tall and stretches 110 feet across, creates a reservoir covering 60 acres, has a maximum storage capacity of 470 acre-feet, and collects water from a drainage area of 11 square miles. Completed in 1955, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 08/21/2019.
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Location
| State | Maine |
| County | Penobscot |
| River/Stream | Alder Stream |
| Coordinates | 44.91306, -69.24917 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 14 ft |
| Dam Height | 14 ft |
| Dam Length | 110 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 470 acre-ft |
| Max Storage | 470 acre-ft |
| Normal Storage | 380 acre-ft |
| Surface Area | 60 acres |
| Drainage Area | 11 sq mi |
Ownership & Safety
| Purpose | Recreation |
| Owner | Corinna |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 08/21/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00323 |
| Federal ID | ME00323 |
| More Info | State Dam Safety Program |