Dd No 104 (Wilmore) Reservoir Report

Last Updated: December 5, 2025

Dd No 104 (Wilmore), also known as Allen Creek Watershed Dam No 104, is a local government-owned earth dam located in Lyon County, Kansas.


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Summary

Built in 1978 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction along the Allen Creek-TR river. With a height of 29 feet and a storage capacity of 235.36 acre-feet, Dd No 104 plays a crucial role in managing water resources in the area.

Despite being categorized as having a low hazard potential, the dam is considered to have a moderate risk level. It features an uncontrolled spillway with a width of 91 feet and has not been inspected since July 2008. The condition assessment is listed as "Not Rated," emphasizing the need for regular monitoring and maintenance to ensure the dam's structural integrity and effectiveness in flood control.

Water resource and climate enthusiasts will find Dd No 104 (Wilmore) an intriguing subject of study, given its role in flood risk reduction and the unique challenges it faces in terms of risk management and maintenance. As a key infrastructure within the Allen Creek watershed, understanding the operations and condition of this dam is essential for sustainable water resource management in the region.

Year Completed

1978

Dam Length

1320

Dam Height

29

River Or Stream

ALLEN CREEK-TR

Primary Dam Type

Earth

Surface Area

10.22

Hydraulic Height

24

Nid Storage

235.36

Structural Height

29

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

29
       
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.