Carp Intake Dam Reservoir Report

Last Updated: December 5, 2025

Located in Marquette, Michigan, the Carp Intake Dam on the Carp River stands as a testament to early 20th-century engineering, having been completed in 1912.


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Summary

This concrete dam, primarily designed for recreational purposes, boasts a height of 57 feet and a length of 333 feet, providing storage for up to 1000 acre-feet of water. The dam's spillway, which is uncontrolled and 120 feet wide, adds to the allure of the structure for water resource and climate enthusiasts.

With a high hazard potential and a satisfactory condition assessment as of November 2018, the Carp Intake Dam is regularly inspected every three years. Despite its moderate risk level, the dam continues to serve its purpose effectively, offering a surface area of 26 acres and contributing to the drainage of a 63.5-square mile area. While the dam does not feature any outlet gates or associated structures, its presence on the Carp River adds to the scenic beauty of the region and provides opportunities for outdoor recreation.

Managed by private owners and regulated by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE), the Carp Intake Dam remains a vital component of the local landscape. Its historical significance, combined with its practical functionality, make it a noteworthy site for those interested in water resources and climate dynamics.

Year Completed

1912

Dam Length

333

Dam Height

57

River Or Stream

Carp River

Primary Dam Type

Concrete

Surface Area

26

Hydraulic Height

54

Drainage Area

63.5

Nid Storage

1000

Structural Height

57

Hazard Potential

High

Nid Height

57
       
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.