Dunham Brook Reservoir Report
Nearby: Snow's Pond Upper Dam
Last Updated: December 19, 2025
Dunham Brook, located in Dover-Foxcroft, Maine, is a crucial water resource managed by the local government.
°F
°F
mph
Wind
%
Humidity
Summary
This earth dam, completed in 1973, serves the primary purpose of flood risk reduction and holds a normal storage capacity of 510 acre-feet with a maximum storage of 900 acre-feet. With a hydraulic height of 12 feet and a structural height of 18 feet, this dam plays a vital role in mitigating potential flooding impacts in the area.
Managed by the Natural Resources Conservation Service, Dunham Brook Dam has a spillway width of 225 feet and a maximum discharge capacity of 6962 cubic feet per second. This high-hazard potential structure has been assessed as satisfactory in condition, with the last inspection conducted in November 2016. Despite its moderate risk assessment rating, the dam's emergency action plan is up to date, ensuring that appropriate measures can be implemented in case of emergencies related to the structure.
With its critical role in flood risk reduction and water management, Dunham Brook Dam stands as a testament to the collaborative efforts between local and federal agencies in safeguarding the surrounding communities from potential water-related hazards. As a key component of the water infrastructure in Piscataquis County, this dam serves as a vital resource for climate and water enthusiasts interested in understanding the intersection of water resource management and climate resilience.
Year Completed |
1973 |
Dam Length |
1960 |
Dam Height |
18 |
River Or Stream |
Dunham Brook |
Primary Dam Type |
Earth |
Surface Area |
65 |
Hydraulic Height |
12 |
Drainage Area |
2.9 |
Nid Storage |
900 |
Structural Height |
18 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
18 |
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.
Dunham Brook