Wah-Tuh Lake Reservoir Report

Last Updated: December 18, 2025

Located in Sagadahoc, Maine, Wah-Tuh Lake is a private water resource that has been regulated by MEMA, the state regulatory agency.


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Summary

This man-made lake, completed in 1890, serves as a vital water source with a normal storage capacity of 146 acre-feet and a maximum storage capacity of 204 acre-feet. With a low hazard potential and fair condition assessment, Wah-Tuh Lake stands as an important structure for water management in the region.

Constructed with buttress and stone core types, Wah-Tuh Lake boasts a dam height of 16 feet and a hydraulic height of 12 feet, with a structural height matching the dam height. The 300-foot long dam encompasses a surface area of 24 acres, providing essential storage for the local community. Despite its age, Wah-Tuh Lake continues to meet state inspection requirements, ensuring its operational integrity for the foreseeable future.

For water resource and climate enthusiasts, Wah-Tuh Lake offers a glimpse into historical water management practices in Maine. As a privately owned structure with state regulation, it serves as a reminder of the importance of sustainable water resource management in the face of changing climate patterns. With its low hazard potential and fair condition assessment, Wah-Tuh Lake remains a key player in the region's water infrastructure, showcasing the intersection of human engineering and natural resource stewardship.

Year Completed

1890

Dam Length

300

Dam Height

16

River Or Stream

Wah-Tuh Lake

Surface Area

24

Hydraulic Height

12

Nid Storage

204

Structural Height

16

Hazard Potential

Low

Nid Height

16
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.