Upper Goodall Heath Dam Reservoir Report
Nearby: Vose Pond Dam Popple Dam
Last Updated: December 22, 2025
Upper Goodall Heath Dam, located in Washington, Maine, is a federal-owned structure managed by the US Fish and Wildlife Service.
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Summary
Completed in 1958, this earth dam stands at a height of 10 feet and has a storage capacity of 135 acre-feet, primarily serving as a fish and wildlife pond on the East Branch Creek. With a low hazard potential but a poor condition assessment as of 2014, the dam is inspected every five years to ensure its safety and functionality.
Despite its modest size and limited drainage area of 0.3 square miles, Upper Goodall Heath Dam plays a crucial role in maintaining the ecological balance of the surrounding area. It features a controlled spillway with a width of 12 feet and other controlled outlet gates for managing water levels. The dam's risk assessment categorizes it as having a very high risk level (1), emphasizing the importance of ongoing risk management measures to prevent potential failures and protect downstream communities and ecosystems.
As a key component of the Fish and Wildlife Service's operations, Upper Goodall Heath Dam highlights the intersection of water resource management and conservation efforts. With its strategic location and purpose, this dam serves as a vital habitat for various species while also posing challenges in terms of maintenance and safety. Moving forward, continued monitoring and potential upgrades will be essential to ensure the long-term sustainability and effectiveness of this important water resource infrastructure.
Year Completed |
1958 |
Dam Length |
160 |
Dam Height |
10 |
River Or Stream |
East Branch Creek |
Primary Dam Type |
Earth |
Surface Area |
23 |
Hydraulic Height |
10 |
Drainage Area |
0.3 |
Nid Storage |
135 |
Structural Height |
10 |
Outlet Gates |
Other Controlled |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
10 |
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.
Upper Goodall Heath Dam