Reilly Lake Dam Reservoir Report

Last Updated: December 5, 2025

Reilly Lake Dam in Wichita, Texas, is a privately-owned structure with a primary purpose of recreation.


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Summary

Built in 1957, this earth dam with a buttress core stands at a height of 15 feet and has a length of 3000 feet. It has a storage capacity of 216 acre-feet and covers a surface area of 18 acres. The dam controls the flow of TR-Wildhorse Creek and does not have a spillway.

Despite not being state-regulated, Reilly Lake Dam presents a high hazard potential, with a risk assessment rating of 2. The condition of the dam is currently not rated, and there is limited information available on its emergency action plan and risk management measures. The dam does not have any associated structures and has only one outlet gate.

For water resource and climate enthusiasts interested in the management and safety of dams, Reilly Lake Dam serves as a fascinating case study. Its unique design and purpose, coupled with its risk assessment rating, highlight the importance of regular inspections and maintenance to ensure the safety of the surrounding community and environment.

Year Completed

1957

Dam Length

3000

Dam Height

15

River Or Stream

TR-WILDHORSE CREEK

Primary Dam Type

Earth

Surface Area

18

Hydraulic Height

15

Nid Storage

216

Structural Height

15

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

15
       
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.