Springwood Lake #1 Dam Reservoir Report

Last Updated: December 5, 2025

Located in Beaverton, Michigan, the Springwood Lake #1 Dam, also known as Twin Lakes Dam, is a privately owned structure primarily used for recreation.


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Summary

Completed in 1959, this earth dam stands at a height of 11 feet with a length of 200 feet, creating a reservoir with a maximum storage capacity of 320 acre-feet. The dam is regulated by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE), ensuring its safety and compliance with state laws.

With a hazard potential rated as low and a satisfactory condition assessment, the Springwood Lake #1 Dam serves as a vital recreational resource for the community. The dam's controlled spillway, with a width of 15 feet, helps manage water levels in the reservoir, while its very high risk assessment ranking highlights the importance of ongoing monitoring and maintenance. Even though the dam has not been modified in recent years, regular inspections are conducted to ensure its continued safety and functionality.

In the event of an emergency, it is crucial for the dam owners to have an Emergency Action Plan (EAP) prepared and up-to-date. While the dam currently does not have an EAP in place, it is important for the owners to follow guidelines and prepare for potential risks associated with the structure. Overall, the Springwood Lake #1 Dam remains a key feature in the local landscape, providing opportunities for recreation and environmental stewardship in Clare County, Michigan.

Year Completed

1959

Dam Length

200

Dam Height

11

River Or Stream

Tributary to Spike Horn Creek

Primary Dam Type

Earth

Surface Area

32

Hydraulic Height

11

Drainage Area

0.5

Nid Storage

320

Structural Height

11

Hazard Potential

Low

Nid Height

11
       
Seasonal Comparison

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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.