Kings Mill Dam Reservoir Report
Last Updated: December 5, 2025
Located in Kings Mill, Michigan, the Kings Mill Dam is a local government-owned structure on the Nottawa Creek.
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Summary
Built in 1836, this earth dam stands at a height of 14 feet and spans 350 feet in length. With a primary purpose of recreation, the dam provides a storage capacity of 110 acre-feet and a maximum discharge of 2792 cubic feet per second.
Despite its age, the Kings Mill Dam is in fair condition with a low hazard potential according to the latest inspection in November 2017. The dam features an uncontrolled spillway with a width of 103 feet, ensuring the safe release of excess water. The surrounding area boasts a surface area of 23 acres and a drainage area of 176 square miles, making it a popular spot for outdoor enthusiasts and nature lovers.
Managed by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE), the Kings Mill Dam continues to be a vital part of the local community. With its moderate risk assessment and regular inspections, this historic structure serves as a reminder of the importance of maintaining and preserving water resources in the face of changing climates.
Year Completed |
1836 |
Dam Length |
350 |
Dam Height |
14 |
River Or Stream |
Nottawa Creek |
Primary Dam Type |
Earth |
Surface Area |
23 |
Hydraulic Height |
13.75 |
Drainage Area |
176 |
Nid Storage |
200 |
Structural Height |
14 |
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.
Kings Mill Dam