Wraco Lodge Dam Reservoir Report

Last Updated: December 5, 2025

Wraco Lodge Dam, located in Roscommon, Michigan, was completed in 1928 and serves as a recreational site on Wolf Creek.


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Summary

This earth dam stands at a height of 9.3 feet and has a hydraulic height of 4.9 feet, with a storage capacity of 1100 acre-feet and a surface area of 416 acres. The dam's spillway, which is uncontrolled and 13 feet wide, has a low hazard potential and a moderate risk assessment rating.

Despite not being regulated by the state, Wraco Lodge Dam provides a picturesque setting for outdoor enthusiasts to enjoy activities such as fishing, boating, and wildlife observation. The dam's condition assessment is not rated, and it has not been inspected since May 2012. With its peaceful surroundings and moderate risk level, Wraco Lodge Dam offers a unique opportunity for visitors to appreciate the intersection of water resource management and climate conditions in the beautiful Michigan landscape.

Year Completed

1928

Dam Length

1000

Dam Height

9.3

River Or Stream

Wolf Creek

Primary Dam Type

Earth

Surface Area

416

Hydraulic Height

4.9

Drainage Area

36.6

Nid Storage

1100

Structural Height

9.3

Hazard Potential

Low

Nid Height

9
       
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.