Timber Creek Mpd No 29 Reservoir Report

Last Updated: December 5, 2025

Located in Cowley County, Kansas, Timber Creek Mpd No 29, also known as the City of Winfield Dam 29, serves as a vital flood risk reduction structure along the Timber Creek river.


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Summary

Built in 1970, this earth dam stands at a height of 91 feet and spans 5,800 feet in length, with a storage capacity of 65,300 acre-feet and a surface area of 1,130 acres. The dam plays a crucial role in protecting the surrounding area from potential flooding, with a maximum discharge capacity of 44,790 cubic feet per second.

Managed by the local government, Timber Creek Mpd No 29 is regulated by the Kansas Department of Agriculture and undergoes regular inspections to ensure its structural integrity. While primarily designed for flood risk reduction, the dam also serves additional purposes such as recreation and water supply. Despite its high hazard potential, the dam has been assessed as satisfactory in condition, highlighting its importance in safeguarding the community from potential water-related disasters. Water resource and climate enthusiasts can find intrigue in the technical specifications and regulatory oversight of this essential infrastructure.

Year Completed

1970

Dam Length

5800

Dam Height

91

River Or Stream

TIMBER CREEK

Primary Dam Type

Earth

Surface Area

1130

Hydraulic Height

78

Drainage Area

64.2

Nid Storage

65300

Structural Height

91

Outlet Gates

None

Hazard Potential

High

Foundations

Unlisted/Unknown

Nid Height

91
       
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.