Mill Pond Dam Reservoir Report
Last Updated: December 19, 2025
Mill Pond Dam, located in Burlington, Massachusetts, stands as a vital structure for water supply purposes.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1973, this concrete dam stretches 1300 feet in length and boasts a height of 50 feet, facilitating a maximum storage capacity of 1746 acre-feet. The dam overlooks a pumped storage reservoir from the Shawsheen River, serving as a crucial regulatory point under the Department of Conservation and Recreation in Massachusetts.
Despite its fair condition assessment in 2016, the dam presents a high hazard potential, prompting biennial inspections to ensure safety and containment. With a drainage area of 0.2 square miles and a surface area of 53 acres, Mill Pond Dam plays a pivotal role in managing water resources and mitigating risks of flooding in the Middlesex County region. Additionally, its high-risk classification underscores the importance of ongoing evaluation and management measures to safeguard the surrounding community and environment.
Year Completed |
1973 |
Dam Length |
1300 |
Dam Height |
50 |
River Or Stream |
PUMPED STORAGE RESERVOIR FROM SHAWSHEEN RIVER |
Primary Dam Type |
Concrete |
Surface Area |
53 |
Hydraulic Height |
50 |
Drainage Area |
0.2 |
Nid Storage |
1746 |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
50 |
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.
Mill Pond Dam
Farm Road, Billerica