Joe Dehart Lake Dam Reservoir Report

Last Updated: December 22, 2025

Joe Dehart Lake Dam, located in Johnson County, Indiana, is a privately owned earth dam designed by the USDA NRCS for recreational purposes.


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Summary

Completed in 1972, this structure spans 215 feet in length and reaches a height of 31 feet, with a maximum storage capacity of 110 acre-feet. The dam sits on an unnamed tributary of Goose Creek and is regulated by the Indiana Department of Natural Resources.

Despite its low hazard potential, the dam's condition assessment in 2009 was rated as poor, highlighting the need for ongoing maintenance and monitoring. The last inspection in 2014 reported a moderate risk level, prompting further attention to risk management measures. With a drainage area of 0.29 square miles and a surface area of 7.7 acres, Joe Dehart Lake Dam plays a crucial role in water resource management and flood control in the region, making it an essential site for water resource and climate enthusiasts to follow.

Year Completed

1972

Dam Length

215

Dam Height

31

River Or Stream

UNNAMED TRIBUTARY GOOSE CREEK

Primary Dam Type

Earth

Surface Area

7.7

Hydraulic Height

32

Drainage Area

0.29

Nid Storage

110

Structural Height

34

Outlet Gates

None

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

34
       
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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.