Stone Dam - Dike 3
Stone Dam - Dike 3 is an earth dam located in Penobscot County, Maine, built in 1900. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Stone Dam - Dike 3
The primary purpose of Stone Dam - Dike 3 is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. It impounds the West Branch Penobscot River near Millinocket.
The dam stands 10 feet tall and stretches 902 feet across, creates a reservoir covering 1,344 acres, has a maximum storage capacity of 8,100 acre-feet, and collects water from a drainage area of 1,890 square miles. Completed in 1900, the structure is over a century 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. An emergency action plan is in place for this dam. The most recent inspection on record was 08/09/2022.
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Location
| State | Maine |
| County | Penobscot |
| Nearest City | Millinocket |
| River/Stream | West Branch Penobscot River |
| Coordinates | 45.64455, -68.73292 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 902 ft |
| Year Completed | 1900 (126 years old) |
Storage & Hydraulics
| NID Storage | 8,100 acre-ft |
| Max Storage | 8,100 acre-ft |
| Normal Storage | 8,100 acre-ft |
| Surface Area | 1,344 acres |
| Drainage Area | 1,890 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner Type | Not Listed |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/09/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ME83040 |
| Federal ID | ME00202S003 |
| More Info | State Dam Safety Program |