Sedimentation Dam No 3 Reservoir Report

Last Updated: December 6, 2025

Sedimentation Dam No 3, located in Woodson County, Kansas, is a vital structure managed by the local government to control debris in Sandy Creek-TR.


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Summary

This Earth-type dam with a buttress core stands at a height of 24.5 feet and has a length of 750 feet, providing a storage capacity of 100 acre-feet. The dam serves its primary purpose of debris control effectively, with a low hazard potential and a surface area of 4.2 acres.

Despite its importance in maintaining the water quality and flow in the area, Sedimentation Dam No 3 is not regulated by the state and does not require regular inspections or permits. The dam, with its sturdy construction and design by Griffith Archit and Shetlar, has not been rated for its current condition. While it may not be considered a high-risk structure, the dam's emergency action plan and risk management measures are not specified, highlighting the need for further assessment and planning to ensure its continued functionality and safety for the surrounding community.

As a significant feature in the local water resource management system, Sedimentation Dam No 3 plays a crucial role in maintaining the ecological balance in the region. With its low hazard potential and debris control capabilities, the dam stands as a testament to the collaborative efforts between local government agencies and designers to safeguard water resources and protect the environment in Woodson County, Kansas.

Dam Length

750

Dam Height

24.5

River Or Stream

SANDY CREEK-TR

Primary Dam Type

Earth

Surface Area

4.2

Drainage Area

0.32

Nid Storage

100

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

25
       
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.