Branch Pond Reservoir Report
Nearby: Sheepscot Outlet Colby Mills
Last Updated: December 18, 2025
Branch Pond is a privately owned water resource located in Kennebec, Maine, with a primary purpose of fire protection, stock, or small fish pond.
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Summary
The dam, completed in 1817, is of masonry construction and stands at a height of 25 feet, with a storage capacity of 4,500 acre-feet and a surface area of 310 acres. The pond is regulated by the State of Maine and is subject to regular inspection, with a significant hazard potential and a poor condition assessment as of the last inspection in July 2020.
The Branch Pond dam plays a crucial role in providing water for fire protection, as well as supporting recreational activities and fish and wildlife habitats. Despite its historical significance and important functions, the dam is in poor condition and requires attention to ensure its continued safety and efficiency. With a drainage area of 10.2 square miles and a connection to the West Branch Sheepscot River, Branch Pond is a vital component of the local ecosystem and a valuable resource for both the environment and the community.
For water resource and climate enthusiasts, Branch Pond presents an intriguing case study of a historic dam with significant hazard potential. The dam's condition assessment, emergency action plan status, and risk management measures are all important factors to consider in ensuring the long-term sustainability and safety of this vital water resource. With its rich history and diverse purposes, Branch Pond serves as a focal point for understanding the challenges and opportunities associated with managing water resources in a changing climate.
Year Completed |
1817 |
Dam Length |
150 |
Dam Height |
25 |
River Or Stream |
West Branch Sheepscot |
Primary Dam Type |
Masonry |
Surface Area |
310 |
Hydraulic Height |
20 |
Drainage Area |
10.2 |
Nid Storage |
4500 |
Structural Height |
25 |
Hazard Potential |
Significant |
Nid Height |
25 |
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.
Branch Pond