Collins Mills is a concrete dam located in Kennebec County, Maine, built in 1830. It carries a Low hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 200 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 Collins Mills
The primary purpose of Collins Mills is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by West Gardiner (local government). It impounds the Cobbosseecontee Stream.
The dam stands 15 feet tall and stretches 200 feet across, creates a reservoir covering 71 acres, and has a maximum storage capacity of 756 acre-feet. Completed in 1830, the structure is one of the older dams in the region, with over a century and a half of service.
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. The most recent inspection on record was 10/09/2019.
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Location
| State | Maine |
| County | Kennebec |
| River/Stream | Cobbosseecontee Stream |
| Coordinates | 44.24612, -69.89491 |
Physical Characteristics
| Dam Type | Concrete |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 200 ft |
| Year Completed | 1830 (196 years old) |
Storage & Hydraulics
| NID Storage | 756 acre-ft |
| Max Storage | 756 acre-ft |
| Normal Storage | 400 acre-ft |
| Surface Area | 71 acres |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | West Gardiner |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/09/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00463 |
| Federal ID | ME00463 |
| More Info | State Dam Safety Program |