Rocky Lake Outlet is a rockfill dam located in Washington County, Maine, built in 1966. It carries a Low hazard potential classification.
Dam profile
NID height · 5 ft5 ft tall and 120 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic rockfill embankment section and the water level is illustrative.
About Rocky Lake Outlet
The primary purpose of Rocky Lake Outlet 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 Ifw/state of Maine (state). It impounds the Rocky Lake.
The dam stands 5 feet tall and stretches 120 feet across, creates a reservoir covering 1,020 acres, has a maximum storage capacity of 10,243 acre-feet, and collects water from a drainage area of 16 square miles. Completed in 1966, 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.
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Location
| State | Maine |
| County | Washington |
| River/Stream | Rocky Lake |
| Coordinates | 44.77076, -67.26477 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 5 ft |
| Dam Height | 5 ft |
| Dam Length | 120 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 10,243 acre-ft |
| Max Storage | 10,243 acre-ft |
| Normal Storage | 5,378 acre-ft |
| Surface Area | 1,020 acres |
| Drainage Area | 16 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Ifw/state of Maine |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ME00750 |
| Federal ID | ME00399S001 |
| More Info | State Dam Safety Program |