Manitou Properties Dam 1 Reservoir Report
Last Updated: December 5, 2025
Manitou Properties Dam 1, located in Morenci, Michigan, is a privately owned structure primarily used for recreational purposes.
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Summary
Completed in 1972, this earth dam stands at a height of 14.2 feet with a hydraulic height of 13.5 feet. It has a storage capacity of 97 acre-feet and serves as a vital component in managing the water resources of the area. The dam is regulated by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE), with state inspections and enforcement ensuring its safety and compliance with regulations.
The dam's spillway, with a width of 38 feet, is uncontrolled, and the structure has a low hazard potential with a satisfactory condition assessment as of the last inspection in July 2020. The risk assessment for Manitou Properties Dam 1 is moderate, indicating a moderate level of potential risk associated with the structure. Despite this, the dam meets guidelines for emergency action plans, although specific details on preparedness and risk management measures are not specified in the data. Overall, Manitou Properties Dam 1 plays a crucial role in both water resource management and recreational activities in the Hillsdale County area.
With its strategic location and significant storage capacity, Manitou Properties Dam 1 serves as a key asset in the water management infrastructure of the region. The dam's presence not only contributes to recreational opportunities but also plays a vital role in providing water supply and flood control measures. As a state-regulated structure with regular inspections and enforcement measures in place, the safety and integrity of Manitou Properties Dam 1 are prioritized, ensuring its continued functionality and contribution to the overall water resource management efforts in Michigan.
Year Completed |
1972 |
Dam Length |
1150 |
Dam Height |
14.2 |
River Or Stream |
Tributary to Lime Creek |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
13.5 |
Drainage Area |
0.18 |
Nid Storage |
97 |
Structural Height |
14.2 |
Hazard Potential |
Low |
Nid Height |
14 |
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 |
|---|---|---|
Lake Hudson Semi-Modern Campground
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Lake Hudson State Rec Area
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Harrison Lake State Park
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Manitou Properties Dam 1