Wallace Dam Reservoir Report

Last Updated: December 7, 2025

Located in Wyandotte, Kansas, the Wallace Dam is a privately owned structure designed by the USDA NRCS for fire protection, stock, or small fish pond purposes.


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Summary

The dam, standing at a height of 31 feet with a hydraulic height of 28 feet, spans 410 feet in length and has a storage capacity of 50.9 acre-feet. With a surface area of 2.9 acres and a drainage area of 0.1 square miles, the dam serves as a vital resource for the surrounding area.

Managed by the Kansas City District of the US Army Corps of Engineers, the Wallace Dam is state-regulated and inspected by the Kansas Department of Agriculture. Despite its high hazard potential and poor condition assessment, the dam is equipped with an adequate spillway width of 66 feet to handle a maximum discharge of 539 cubic feet per second. While the dam has not undergone any major modifications since its completion, it remains an essential component of the local water resource infrastructure.

Water resource and climate enthusiasts will appreciate the strategic location of the Wallace Dam along Betts Creek-TR, providing essential water storage and flood control capabilities for the region. Its association with the Natural Resources Conservation Service and compliance with state regulatory agencies ensure the safety and reliability of the dam for fire protection and agricultural purposes. As efforts continue to improve the dam's condition and emergency response preparedness, the Wallace Dam stands as a critical asset in managing water resources and mitigating climate-related risks in the area.

Dam Length

410

Dam Height

31

River Or Stream

BETTS CREEK-TR

Surface Area

2.9

Hydraulic Height

28

Drainage Area

0.1

Nid Storage

50.9

Structural Height

31

Outlet Gates

None

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

31
       
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.
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Area Campgrounds