Mill Pond Dam Reservoir Report
Last Updated: December 19, 2025
Mill Pond Dam, located in Littleton, Massachusetts, is a concrete structure built in 1958 with a primary purpose of providing habitat for fish and wildlife.
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Summary
The dam stands at 16 feet tall and has a hydraulic height of 6 feet, holding a total storage capacity of 442 acre-feet. It is regulated by the Department of Conservation and Recreation and undergoes regular state inspections, with a hazard potential rated as low and a fair condition assessment as of June 2013.
Situated on a tributary of Beaver Brook, Mill Pond Dam plays a crucial role in maintaining the ecological balance of the area while also offering recreational opportunities for visitors. Its spillway type is listed as uncontrolled, and it has a drainage area of 1.7 square miles. With a moderate risk assessment rating and a designated emergency action plan frequency of 10 years, the dam is equipped to handle potential hazards and ensure the safety of surrounding communities. Despite its age, Mill Pond Dam continues to serve its intended purposes effectively while upholding state regulatory standards.
With Lori Trahan as the representative for the area, Mill Pond Dam remains a vital part of the water resource infrastructure in Middlesex County. Its design as a buttress type dam and its association with the New England District of the US Army Corps of Engineers highlight its significance in the region. As a state-regulated and permitted structure, the dam stands as a testament to the ongoing efforts to manage and protect water resources in Massachusetts. Enthusiasts of water resource management and climate resilience will find Mill Pond Dam to be an intriguing example of sustainable infrastructure in action.
Year Completed |
1958 |
Dam Length |
120 |
Dam Height |
16 |
River Or Stream |
TRIBUTARY OF BEAVER BROOK |
Primary Dam Type |
Concrete |
Hydraulic Height |
6 |
Drainage Area |
1.7 |
Nid Storage |
442 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
16 |
Seasonal Comparison
Weather Forecast
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.
Mill Pond Dam
Emerson Drive Littleton