Tyler Flowage Reservoir Report
Last Updated: December 22, 2025
Tyler Flowage in Maine is a federally-owned dam that serves the primary purpose of flood risk reduction.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1964, this concrete dam stands at a height of 7 feet with a length of 125 feet, providing a maximum storage capacity of 137 acre-feet. The dam also supports fish and wildlife habitat in addition to flood control measures.
Located in Washington County, Maine, Tyler Flowage has a surface area of 5 acres and a spillway width of 15 feet. The dam is regulated by the Maine Emergency Management Agency (MEMA) and undergoes regular inspections to ensure its structural integrity. With a low hazard potential and a condition assessment of "Not Rated," Tyler Flowage plays a crucial role in managing water resources and protecting the surrounding environment.
Enthusiasts of water resources and climate will appreciate the significance of Tyler Flowage in mitigating flood risks and supporting wildlife conservation efforts in Maine. As a federally-owned structure, the dam contributes to the overall water management strategy in the region and highlights the importance of maintaining infrastructure to safeguard communities against potential hazards. Its historical significance and ongoing regulatory oversight make Tyler Flowage a key site for understanding the intersection of water resource management and environmental conservation in the state.
Year Completed |
1964 |
Dam Length |
125 |
Dam Height |
7 |
River Or Stream |
Tyler Flowage |
Primary Dam Type |
Concrete |
Surface Area |
5 |
Hydraulic Height |
7 |
Nid Storage |
137 |
Structural Height |
7 |
Hazard Potential |
Low |
Nid Height |
7 |
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 |
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.
Tyler Flowage