Rich Mill
Rich Mill is an earth dam located in Cumberland County, Maine, built in 1770. It carries a Low hazard potential classification.
About Rich Mill
The primary purpose of Rich Mill 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 Richard Wing (private). It impounds the Rich Mill Pond Stream.
The dam stands 12 feet tall and stretches 218 feet across, creates a reservoir covering 77 acres, and has a maximum storage capacity of 250 acre-feet. Completed in 1770, 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.
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Location
| State | Maine |
| County | Cumberland |
| River/Stream | Rich Mill Pond Stream |
| Coordinates | 43.78764, -70.57036 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 218 ft |
| Year Completed | 1770 (256 years old) |
Storage & Hydraulics
| NID Storage | 250 acre-ft |
| Max Storage | 250 acre-ft |
| Normal Storage | 210 acre-ft |
| Surface Area | 77 acres |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Richard Wing |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00535 |
| Federal ID | ME00535 |
| More Info | State Dam Safety Program |