Younglove Dam Reservoir Report

Last Updated: December 5, 2025

Younglove Dam, located in Thornville, Michigan, was completed in 1967 for the primary purpose of recreation.


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Summary

The earth dam stands at a height of 7.5 feet and has a hydraulic height of 3 feet, with a total length of 210 feet. The dam has a normal storage capacity of 117 acre-feet and a maximum storage of 180 acre-feet, serving as a vital water resource in the area.

Managed by a private owner, Younglove Dam is situated on a tributary to the South Branch of the Flint River, within the Lapeer County. With a low hazard potential and a moderate risk assessment rating, the dam has not undergone recent condition assessments but was last inspected in 1993. The spillway, which is uncontrolled, has a width of 49 feet, allowing for a maximum discharge of 250 cubic feet per second.

Despite its age, Younglove Dam continues to provide valuable recreational opportunities for the community while also serving as a crucial water storage facility. Its location within a scenic area makes it a popular destination for water resource and climate enthusiasts seeking to enjoy the natural beauty of Michigan's landscape.

Year Completed

1967

Dam Length

210

Dam Height

7.5

River Or Stream

Trib to South Br Flint River

Primary Dam Type

Earth

Surface Area

24

Hydraulic Height

3

Drainage Area

0.3

Nid Storage

180

Structural Height

7.5

Hazard Potential

Low

Nid Height

8
       
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.