Walker Creek Dam #2 Reservoir Report
Last Updated: December 5, 2025
Located in Weidman, Michigan, Walker Creek Dam #2, also known as Manitonka Lake Dam, is a privately owned structure with a primary purpose of recreation.
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Summary
Built in 1968, this earth-type dam stands at a height of 18 feet and spans a length of 700 feet, creating a reservoir with a maximum storage capacity of 900 acre-feet and a normal storage of 301 acre-feet. The dam, situated on Walker Creek, covers a surface area of 42 acres and has a drainage area of 2.8 square miles.
Despite its recreational significance, Walker Creek Dam #2 poses a significant hazard potential with a poor condition assessment and a very high risk rating. The dam's last inspection in 2009 revealed its poor condition, highlighting the need for regular maintenance and potential upgrades to ensure public safety. With a controlled spillway type and a spillway width of 14 feet, the dam has a maximum discharge capacity of 115 cubic feet per second. The dam is regulated by the Michigan DEGLE and undergoes regular state inspections and enforcement.
Enthusiasts of water resources and climate in Isabella County, Michigan, may find Walker Creek Dam #2 an intriguing subject for further study and monitoring. As a key recreational asset in the area, the dam's structural integrity and risk management measures are critical considerations for local authorities and residents. With its historical significance dating back to the late 1960s, the dam serves as a vital component of the local water infrastructure and warrants ongoing attention to ensure its continued safe operation amidst evolving environmental conditions and regulatory standards.
Year Completed |
1968 |
Dam Length |
700 |
Dam Height |
18 |
River Or Stream |
Walker Creek |
Primary Dam Type |
Earth |
Surface Area |
42 |
Hydraulic Height |
18 |
Drainage Area |
2.8 |
Nid Storage |
900 |
Structural Height |
18 |
Hazard Potential |
Significant |
Nid Height |
18 |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Coldwater Lake Family Park
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Merrill Lake Park
|
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Tubbs Lake State Forest Campground
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Walker Creek Dam #2
West Stevenson Lake Road Gilmore Township