Tecumseh Lake Dam Reservoir Report

Last Updated: December 27, 2025

Tecumseh Lake Dam, located in Shawnee, Ohio, serves as a vital water resource and recreational area in the region.


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Summary

Constructed in 1954, this earth dam stands at a height of 25.1 feet and has a storage capacity of 44.8 acre-feet. The dam primarily caters to recreational activities, offering a surface area of 4.3 acres for visitors to enjoy the scenic views and engage in water-based activities.

Despite its importance for recreation, Tecumseh Lake Dam poses a significant hazard potential due to its poor condition as assessed in 2017. The dam is under state regulation by the Department of Natural Resources and undergoes regular inspections to ensure its safety and compliance with regulatory standards. With a drainage area of 0.5 square miles, the dam plays a crucial role in managing water flow and preventing potential flooding in the tributary to Shawnee Creek.

While facing challenges in terms of its condition assessment and hazard potential, Tecumseh Lake Dam remains a key feature in the local landscape, providing both recreational opportunities and essential water resource management functions. As water resource and climate enthusiasts, it is important to monitor the dam's maintenance and regulatory oversight to ensure the safety of the surrounding community and the preservation of this valuable water infrastructure for future generations.

Year Completed

1954

Dam Length

455

Dam Height

25.1

River Or Stream

TRIBUTARY TO SHAWNEE CREEK

Primary Dam Type

Earth

Surface Area

4.3

Drainage Area

0.5

Nid Storage

44.8

Hazard Potential

Significant

Nid Height

25
       
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.