Thomas Dam Reservoir Report

Nearby: Dam 2 Dam 1

Last Updated: December 13, 2025

Thomas Dam, also known as Ksnoname 461, is a private water resource structure located in Crawford County, Kansas.


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Summary

Designed by the USDA NRCS, this Earth-type dam serves multiple purposes including fire protection, stock, and small fish pond management. It stands at a height of 15 feet with a hydraulic height of 14 feet and a length of 1400 feet, providing a storage capacity of 61.9 acre-feet.

Situated on Hickory Creek-TR, Thomas Dam has a low hazard potential and is currently not rated for its condition assessment. Despite being last inspected in February 1991, the dam has not undergone any modifications since its completion. With a spillway width of 75 feet and a surface area of 8.3 acres, the dam serves as an important water resource for the region. While it is not regulated by the state and does not require permits or inspections, Thomas Dam plays a crucial role in water management and conservation efforts in the area.

Owned privately and funded by the Natural Resources Conservation Service, Thomas Dam plays a vital role in maintaining water supply for fire protection and agricultural activities. While it may not be a prominent landmark, its significance in providing water resources for the community cannot be overlooked. Climate and water resource enthusiasts will find Thomas Dam to be an intriguing structure that contributes to the sustainable management of water in the region.

Dam Length

1400

Dam Height

15

River Or Stream

HICKORY CREEK-TR

Primary Dam Type

Earth

Surface Area

8.3

Hydraulic Height

14

Drainage Area

0.59

Nid Storage

61.9

Structural Height

15

Outlet Gates

None

Hazard Potential

Low

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.