Daly Flowage Dam Reservoir Report
Nearby: Cranberry Lake Dam Snare Meadow Dam
Last Updated: December 22, 2025
Daly Flowage Dam, located in Washington, Maine, is a Federal-owned structure managed by the US Fish and Wildlife Service Office of Engineering.
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Summary
This earth-type dam was completed in 1950 and serves as a vital component of the Moosehorn Brook Tributary, providing water resource management for a Fish and Wildlife Pond. With a height of 10 feet and a length of 350 feet, the dam has a storage capacity of 285 acre-feet, making it a significant contributor to the local ecosystem.
Despite its importance, Daly Flowage Dam is currently rated as being in poor condition, with a hazard potential deemed low. The dam has a very high risk assessment rating, indicating the need for immediate attention and potential risk management measures. The last inspection took place in June 2014, with an inspection frequency of 5 years. As a controlled spillway type dam with other controlled outlet gates, the structure requires regular monitoring and maintenance to ensure its continued functionality and safety for both the environment and surrounding communities.
Given its critical role in water resource management and wildlife preservation, Daly Flowage Dam warrants ongoing attention and investment to address its current poor condition and mitigate the very high risk assessment rating. This Federal-owned structure must be regularly inspected and maintained to ensure its effectiveness in supporting the local ecosystem and managing water resources in the Moosehorn Brook Tributary. Collaborative efforts between regulatory agencies and the Fish and Wildlife Service are essential to safeguarding the dam's integrity and preventing potential hazards in the future.
Year Completed |
1950 |
Dam Length |
350 |
Dam Height |
10 |
River Or Stream |
Moosehorn Brook Tributary |
Primary Dam Type |
Earth |
Surface Area |
43 |
Hydraulic Height |
10 |
Drainage Area |
2.1 |
Nid Storage |
285 |
Structural Height |
10 |
Outlet Gates |
Other Controlled |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
10 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
St. Croix River At Baring
|
1100cfs |
Dennys River At Dennysville
|
1010cfs |
Old Stream Near Wesley
|
27cfs |
Grand Lake Stream At Grand Lake Stream
|
113cfs |
Libby Brook Near Northfield
|
9cfs |
St. Croix River At Vanceboro
|
369cfs |
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.
Daly Flowage Dam