Monson Pond Reservoir Report
Nearby: Bryant Pond Libby Brook
Last Updated: December 19, 2025
Monson Pond, located in Aroostook, Maine, serves as a vital water supply source for the local community.
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Summary
This earth dam, completed in 1925, stands at 16 feet high and has a storage capacity of 1820 acre-feet. With a surface area of 160 acres and a drainage area of 12 square miles, the pond plays a crucial role in supplying water for fire protection, livestock, recreational activities, and general water supply needs.
Managed by the local government and regulated by the Maine Emergency Management Agency, Monson Pond is inspected regularly to ensure its structural integrity and safety. Despite being classified as having a low hazard potential, the dam's condition assessment is currently not rated. With a spillway width of 10 feet, the pond has the capacity to handle potential overflow events. The surrounding Pattee River contributes to the pond's water source, making it an important resource in the region's water management and climate resilience efforts.
Water resource and climate enthusiasts can appreciate the significance of Monson Pond in sustaining the local ecosystem and providing essential water services. As a key water supply source with multiple purposes, including recreation and livestock support, the pond's management and regulation by the Maine Emergency Management Agency ensure its continued functionality and safety. With its low hazard potential and regular inspections, Monson Pond stands as a vital reservoir in Aroostook, Maine, contributing to the region's water security and environmental sustainability.
Year Completed |
1925 |
Dam Length |
120 |
Dam Height |
16 |
River Or Stream |
Pattee |
Primary Dam Type |
Earth |
Surface Area |
160 |
Hydraulic Height |
10 |
Drainage Area |
12 |
Nid Storage |
1820 |
Structural Height |
16 |
Hazard Potential |
Low |
Nid Height |
16 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Williams Brook At Phair
|
3cfs |
Aroostook River At Washburn
|
1520cfs |
Aroostook River Near Masardis
|
825cfs |
Meduxnekeag River Near Houlton
|
222cfs |
Meduxnekeag R Above S Br Medux. R Nr Houlton
|
88cfs |
Fish River Near Fort Kent
|
695cfs |
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.
Monson Pond
Main Street Presque Isle