Middle Barn Meadow Dam Reservoir Report
Last Updated: December 22, 2025
Middle Barn Meadow Dam, located in Washington, Maine, is a Federal-owned structure managed by the US Fish and Wildlife Service.
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Summary
Built in 1944, this Earth dam stands at 14 feet tall and spans 550 feet in length, creating a Fish and Wildlife Pond with a storage capacity of 735 acre-feet. The dam serves as a crucial habitat for wildlife in the area, nestled along a tributary to Magurrewock Stream.
Despite its age, Middle Barn Meadow Dam remains in fair condition with a low hazard potential. Inspected every five years, the dam features a controlled spillway and other controlled outlet gates to manage water levels effectively. With a very high risk assessment rating, the dam is well-maintained by the Fish and Wildlife Service, ensuring the safety of surrounding communities and the preservation of essential aquatic ecosystems.
Year Completed |
1944 |
Dam Length |
550 |
Dam Height |
14 |
River Or Stream |
Tributary to Magurrewock Stream |
Primary Dam Type |
Earth |
Surface Area |
69 |
Hydraulic Height |
14 |
Drainage Area |
0.6 |
Nid Storage |
735 |
Structural Height |
14 |
Outlet Gates |
Other Controlled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
14 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
St. Croix River At Baring
|
1100cfs |
Dennys River At Dennysville
|
1010cfs |
Grand Lake Stream At Grand Lake Stream
|
113cfs |
Old Stream Near Wesley
|
27cfs |
St. Croix River At Vanceboro
|
369cfs |
Libby Brook Near Northfield
|
9cfs |
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.
Middle Barn Meadow Dam