Snoblen Dam Reservoir Report

Last Updated: December 5, 2025

Snoblen Dam, located in Hadley, Michigan, is a private earth dam that was completed in 1950 for the primary purpose of recreation.


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Summary

Situated on a tributary to Mill Creek, this dam stands at a height of 13 feet with a length of 150 feet, providing a storage capacity of 100 acre-feet. With a low hazard potential and fair condition assessment, Snoblen Dam is regulated by the MICHIGAN DEGLE and undergoes regular inspections to ensure its safety and functionality.

Despite its modest size, Snoblen Dam plays a crucial role in managing water resources in the Lapeer County area, with a maximum discharge capacity of 35 cubic feet per second. The dam's uncontrolled spillway and moderate risk assessment highlight the importance of proper maintenance and risk management measures to mitigate any potential hazards. With its scenic location and recreational opportunities, Snoblen Dam serves as both a water resource infrastructure and a popular destination for outdoor enthusiasts.

As climate change continues to impact water resources and infrastructure, the maintenance and regulation of dams like Snoblen Dam become increasingly vital. By staying informed about the condition and management of such structures, water resource and climate enthusiasts can contribute to the sustainable and safe utilization of these essential resources in Michigan and beyond.

Year Completed

1950

Dam Length

150

Dam Height

13

River Or Stream

Tributrary to Mill Creek

Primary Dam Type

Earth

Surface Area

13

Hydraulic Height

13

Drainage Area

0.8

Nid Storage

100

Structural Height

13

Hazard Potential

Low

Nid Height

13
       
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.