Bristol Mills Reservoir Report
Nearby: Clarks Cove Pond Ice Pond
Last Updated: December 19, 2025
Bristol Mills in Lincoln, Maine is a concrete dam built in 1914 on the Upper Pemmaquid River, primarily serving as a source of water for fire protection, stock, and small fish pond purposes.
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Summary
With a structural height of 14.5 feet and a hydraulic height of 12 feet, the dam boasts a storage capacity of 8,534 acre-feet and a surface area of 2,658 acres. It is regulated by the Maine Emergency Management Agency (MEMA) and undergoes regular inspections, with its hazard potential classified as low.
The dam at Bristol Mills plays a crucial role in supporting the local ecosystem and providing recreational opportunities for residents and visitors alike. Its construction and operation are managed by the local government, ensuring compliance with state regulations and permitting requirements. The surrounding area offers a picturesque setting for water resource and climate enthusiasts to explore, with Chellie Pingree representing the district in Congress.
Despite its age, Bristol Mills Dam remains in good condition and continues to fulfill its intended purposes effectively. The dam's historical significance, combined with its functional importance for fire protection and wildlife conservation, makes it a valuable asset for the community and a point of interest for those interested in water resource management and climate resilience efforts in the region.
Year Completed |
1914 |
Dam Length |
110 |
Dam Height |
14.5 |
River Or Stream |
Upper Pemmaquid |
Primary Dam Type |
Concrete |
Surface Area |
2658 |
Hydraulic Height |
12 |
Drainage Area |
31 |
Nid Storage |
8534 |
Structural Height |
14.5 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Bristol Mills