Lamb Brook Dam Reservoir Report
Nearby: Drews Lake Hodgdon Marsh
Last Updated: January 12, 2026
Lamb Brook Dam, located in Aroostook, Maine, is a private earth dam completed in 1970 with a primary purpose other than flood control.
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Summary
The dam stands at a height of 14 feet and spans 300 feet in length, impounding a storage capacity of 55 acre-feet. Despite its relatively small surface area of 1 acre and low hazard potential, the dam is regulated by the Maine Emergency Management Agency (MEMA) and undergoes regular inspections to ensure its structural integrity and safety.
The dam, situated on Lamb Brook, serves as a recreational spot in addition to its primary purpose, attracting water resource and climate enthusiasts to enjoy the serene surroundings. With a spillway width of 20 feet and a drainage area of zero, Lamb Brook Dam plays a crucial role in managing water flow in the region. While the dam's condition assessment is currently not rated, its emergency action plan (EAP) status and risk management measures are yet to be fully evaluated, indicating the need for ongoing monitoring and assessment to maintain its safety and functionality.
Managed by a private entity, Lamb Brook Dam provides essential water storage capacity and recreational opportunities in the area. As climate change continues to impact water resources, the importance of maintaining and enhancing infrastructure like Lamb Brook Dam to mitigate potential risks and ensure sustainable water management practices becomes increasingly vital for the community and surrounding ecosystems.
Year Completed |
1970 |
Dam Length |
300 |
Dam Height |
14 |
River Or Stream |
LAMB BROOK |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
14 |
Nid Storage |
55 |
Structural Height |
14 |
Hazard Potential |
Low |
Nid Height |
14 |
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.
Lamb Brook Dam