Dd No 110 Reservoir Report

Last Updated: December 5, 2025

Dd No 110, also known as Allen Creek Watershed Dam No 110, is a local government-owned earth dam located in Lyon County, Kansas.


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Summary

Built in 1979 by the USDA NRCS, this dam serves the primary purpose of flood risk reduction along the Allen Creek-TR river. With a height of 30 feet and a length of 1110 feet, Dd No 110 has a storage capacity of 228 acre-feet and covers a surface area of 8.81 acres.

Managed by the Kansas Department of Agriculture, Dd No 110 is regulated, permitted, inspected, and enforced by the state to ensure its safety and functionality. The dam has a low hazard potential and a moderate risk level, with a maximum discharge of 562 cubic feet per second. The dam is equipped with an uncontrolled spillway with a width of 60 feet and does not have outlet gates. Despite its condition being marked as "not rated," Dd No 110 continues to play a crucial role in minimizing the risk of flooding in the surrounding area.

Located in Emporia, Kansas, Dd No 110 is a vital piece of infrastructure designed to protect the local community from potential flood events. With its strategic placement along the Allen Creek-TR river, this dam stands as a testament to effective water resource management and climate adaptation efforts in the region. As water resource and climate enthusiasts, it is important to recognize and appreciate the significant role that structures like Dd No 110 play in safeguarding communities and ecosystems against the impacts of extreme weather events.

Year Completed

1979

Dam Length

1110

Dam Height

30

River Or Stream

ALLEN CREEK-TR

Primary Dam Type

Earth

Surface Area

8.81

Hydraulic Height

26

Drainage Area

0.72

Nid Storage

228

Structural Height

30

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

30
       
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.