Dd No Iii-1 Reservoir Report

Last Updated: December 6, 2025

Dd No Iii-1, located in Bourbon County, Kansas, is a locally-owned earth dam designed by Agricultural Eng.


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Summary

Assoc. with a primary purpose of flood risk reduction. Completed in 1994, this dam stands at a height of 29 feet and has a storage capacity of 931.25 acre-feet, serving a drainage area of 1.69 square miles along the Little Mill Creek-TR river/stream. With a spillway width of 120 feet and a maximum discharge capacity of 4750 cubic feet per second, Dd No Iii-1 plays a crucial role in managing floodwaters in the area.

While the dam's hazard potential is deemed significant, its condition assessment is rated as fair, with a moderate risk level of 3. Regular inspections, conducted every 5 years, ensure its structural integrity and effectiveness in flood control. The dam does not feature outlet gates or associated structures, indicating a simple yet vital role in safeguarding the surrounding communities from potential flooding events. With state-regulated oversight from the Kansas Department of Agriculture, Dd No Iii-1 remains an essential asset in the region's water resource and climate management efforts.

Year Completed

1994

Dam Length

1000

Dam Height

29

River Or Stream

LITTLE MILL CREEK-TR

Primary Dam Type

Earth

Surface Area

12.68

Drainage Area

1.69

Nid Storage

931.25

Outlet Gates

None

Hazard Potential

Significant

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.
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