Gs Dd No C-120 Reservoir Report

Last Updated: December 13, 2025

Gs Dd No C-120 is a flood risk reduction structure located in HOLTON, Kansas, specifically along the BANNER CREEK-TR river.


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Summary

Constructed in 1986, this earth dam stands at a height of 36 feet and spans a length of 580 feet. With a storage capacity of 161 acre-feet, the dam serves the primary purpose of flood risk reduction and debris control.

Managed by the local government and regulated by the KS Dept. of Agriculture, Gs Dd No C-120 has a low hazard potential and a moderate risk assessment rating of 3. Although the condition assessment is not rated, the dam has not undergone any modifications since its completion. The spillway type is uncontrolled with a width of 47 feet, and there are no outlet gates associated with the structure.

Overall, Gs Dd No C-120 plays a crucial role in mitigating flood risks in the area, providing protection to the surrounding communities in Jackson County, Kansas. With its strategic location and design features, this dam serves as a vital component of the region's water resource management infrastructure, ensuring the safety and well-being of residents in the face of potential flooding events.

Year Completed

1986

Dam Length

580

Dam Height

36

River Or Stream

BANNER CREEK-TR

Primary Dam Type

Earth

Surface Area

6.5

Drainage Area

0.37

Nid Storage

161

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

36
       
Seasonal Comparison

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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.