Oakland Reservoir Report
Nearby: Messalonskee Lake Rice Rips
Last Updated: December 18, 2025
Oakland, also known as Messalonskee No.2 Dam, is a privately owned hydroelectric structure located in Kennebec County, Maine.
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Summary
Built in 1901, this concrete gravity dam stands at a height of 14 feet and stretches 115 feet in length, providing a storage capacity of 51 acre-feet. The dam harnesses the power of Messalonskee Stream for hydroelectric purposes, with a controlled spillway width of 75 feet and a maximum discharge capability of 200 cubic feet per second.
Managed by the Federal Energy Regulatory Commission, Oakland's hazard potential is rated as low, but its risk assessment is categorized as very high. Despite the lack of state regulation, the dam undergoes inspections every three years to ensure its structural integrity and safety. Emergency action plans are in place, although details on condition assessments are not available at this time. With a strong focus on risk management and safety measures, Oakland serves as a vital piece of infrastructure in the region's water resource and climate management efforts.
Year Completed |
1901 |
Dam Length |
115 |
Dam Height |
14 |
River Or Stream |
Messalonskee Stream |
Primary Dam Type |
Concrete |
Surface Area |
9.6 |
Drainage Area |
178 |
Nid Storage |
51 |
Outlet Gates |
Slide (sluice gate) - 1, Tainter (radial) - 1 |
Hazard Potential |
Low |
Foundations |
Rock |
Nid Height |
14 |
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.
Oakland
Belgrade Avenue 18, Oakland