Lake St George Reservoir Report
Nearby: Stevens Pond Kingdom Bog
Last Updated: December 19, 2025
Lake St George in Maine is a picturesque reservoir located in Waldo County, offering a tranquil retreat for water resource and climate enthusiasts.
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Summary
Originally completed in 1820, this stone dam stands at a height of 15 feet, with a primary purpose of hydroelectric power generation and recreation. With a normal storage capacity of 5750 acre-feet and a surface area of 1095 acres, the lake is fed by the St. George River and covers a drainage area of 6.4 square miles.
Despite its historical significance and recreational value, Lake St George faces challenges in terms of its dam condition assessment, which has been rated as poor. With a significant hazard potential, the dam requires frequent inspections every 6 years to ensure public safety. The last inspection in 2017 revealed the dam's deteriorating condition, prompting concerns about its long-term stability. While the reservoir offers opportunities for hydroelectric power and outdoor activities, efforts are needed to address the dam's maintenance and risk management to safeguard the surrounding community and ecosystem.
As a hub for water-based activities and scenic beauty, Lake St George remains a beloved destination in Maine. However, proactive measures are essential to address the dam's structural concerns and ensure the safety of residents and visitors. With its rich history and potential for recreation, the preservation of Lake St George is crucial for sustaining its ecological integrity and the well-being of the local community.
Year Completed |
1820 |
Dam Length |
80 |
Dam Height |
15 |
River Or Stream |
St. George |
Primary Dam Type |
Stone |
Surface Area |
1095 |
Hydraulic Height |
11 |
Drainage Area |
6.4 |
Nid Storage |
6400 |
Structural Height |
15 |
Hazard Potential |
Significant |
Nid Height |
15 |
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.
Lake St George