Elkhart Reservoir Report

Last Updated: December 5, 2025

Located in Elkhart, Indiana, the Elkhart Hydroelectric Dam stands as a testament to engineering excellence since its completion in 1903.


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Summary

With a primary purpose of hydroelectric power generation, this gravity dam harnesses the power of the St. Joseph River to provide a maximum storage capacity of 3,300 acre-feet and a maximum discharge of 33,000 cubic feet per second.

The dam, with a height of 24.5 feet and a length of 309 feet, is equipped with a controlled spillway and 11 Tainter radial gates for efficient water management. The surrounding area boasts a surface area of 512 acres and a drainage area of 2,542 square miles, making it a vital resource for the region. Despite its high hazard potential, the dam has not undergone a formal condition assessment, making its structural integrity a point of concern for water resource and climate enthusiasts.

Managed by the Federal Energy Regulatory Commission, the Elkhart Hydroelectric Dam serves as a key player in the sustainable energy landscape of Indiana. Its historical significance and ongoing operational importance make it a focal point for monitoring and potential risk mitigation efforts within the region.

Year Completed

1903

Dam Length

309

Dam Height

24.5

River Or Stream

St Joseph River

Primary Dam Type

Gravity

Surface Area

512

Hydraulic Height

17

Drainage Area

2542

Nid Storage

3300

Structural Height

14

Outlet Gates

Tainter (radial) - 11

Hazard Potential

High

Nid Height

25
       
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.