Louisa Lake Dam Reservoir Report
Last Updated: December 13, 2025
Louisa Lake Dam, located in Milford, Massachusetts, was completed in 1980 and serves as a recreational resource for the community.
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Summary
This earth dam, with a height of 12.7 meters and a length of 350 meters, holds a maximum storage capacity of 81 acre-feet and covers a surface area of 18.2 acres. The dam is situated on Huckleberry Brook and is regulated by the Department of Conservation and Recreation, ensuring that it meets state inspection and enforcement standards.
With a significant hazard potential and fair condition assessment, Louisa Lake Dam poses a moderate risk that is closely monitored by authorities. Despite its uncontrolled spillway type, the dam's risk management measures aim to mitigate any potential issues. The dam's emergency action plan, inspection frequency, and hazard assessment all contribute to maintaining the safety and integrity of the structure for both recreational and environmental purposes. Louisa Lake Dam stands as a vital component of water resource management in Worcester County, Massachusetts, under the jurisdiction of the local government and state regulatory agencies.
Year Completed |
1980 |
Dam Length |
350 |
Dam Height |
12.7 |
River Or Stream |
HUCKLEBERRY BROOK |
Primary Dam Type |
Earth |
Surface Area |
18.2 |
Hydraulic Height |
11.7 |
Drainage Area |
3.73 |
Nid Storage |
81 |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
13 |
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.
Louisa Lake Dam
West Main Street 209, Hopkinton