West Grand Lake
West Grand Lake is a timber crib dam located in Washington County, Maine, built in 1836. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About West Grand Lake
The primary purpose of West Grand Lake is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Woodland Pulp, Llc (private). It impounds the West Branch St. Croix River near Grand Lake Stream.
The dam stands 13 feet tall and stretches 487 feet across, creates a reservoir covering 23,500 acres, has a maximum storage capacity of 160,900 acre-feet, and collects water from a drainage area of 162 square miles. Completed in 1836, the structure is one of the older dams in the region, with over a century and a half of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 09/22/2022.
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Location
| State | Maine |
| County | Washington |
| Nearest City | Grand Lake Stream |
| River/Stream | West Branch St. Croix River |
| Coordinates | 45.18140, -67.77790 |
Physical Characteristics
| Dam Type | Timber Crib |
| NID Height | 13 ft |
| Dam Height | 13 ft |
| Dam Length | 487 ft |
| Year Completed | 1836 (190 years old) |
Storage & Hydraulics
| NID Storage | 160,900 acre-ft |
| Max Storage | 160,900 acre-ft |
| Normal Storage | 160,900 acre-ft |
| Surface Area | 23,500 acres |
| Drainage Area | 162 sq mi |
| Max Discharge | 5,450 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Woodland Pulp, LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/22/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ME00223 |
| Federal ID | ME00223 |
| More Info | State Dam Safety Program |