Delaney Creek Dam No. 3 Reservoir Report

Last Updated: December 5, 2025

Delaney Creek Dam No.


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Summary

3, also known as Winslow Lake, is a vital structure located in Kossuth, Indiana, which serves the primary purpose of flood risk reduction along the unnamed tributary of Delaney Creek. Completed in 1973 by the USDA NRCS, this earth dam stands at a height of 51 feet and has a hydraulic height of 40 feet, providing a maximum storage capacity of 669 acre-feet and a normal storage capacity of 72 acre-feet.

Despite its significant role in managing water resources, Delaney Creek Dam No. 3 has been flagged with a high hazard potential and a poor condition assessment, last inspected in August 2018. With a moderate risk rating, it is crucial for the local government, as the primary owner, and the regulatory agency (IDNR) to address the maintenance and enforcement issues to ensure the dam's structural integrity and continued functionality for flood control in the region. The dam's emergency action plan and risk management measures should also be updated to meet guidelines and enhance preparedness for any potential emergencies in the future.

Given its strategic location in Washington County and its critical role in flood risk reduction, Delaney Creek Dam No. 3 warrants close monitoring and proactive maintenance efforts to safeguard the surrounding communities and water resources. As water resource and climate enthusiasts, it is imperative to advocate for the necessary investments and improvements to enhance the dam's resilience and ensure its continued effectiveness in mitigating flood risks in the region.

Year Completed

1973

Dam Length

550

Dam Height

51

River Or Stream

UNNAMED TRIBUTARY DELANEY CREEK

Primary Dam Type

Earth

Surface Area

12

Hydraulic Height

40

Drainage Area

1.84

Nid Storage

669

Structural Height

51

Outlet Gates

Valve

Hazard Potential

High

Foundations

Rock, Soil

Nid Height

51
       
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.