Dd No 5 Reservoir Report

Last Updated: December 5, 2025

Dd No 5, located in Lyon County, Kansas, is a local government-owned dam designed by King Engineering Assoc.


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Summary

and completed in 1991 for the primary purpose of flood risk reduction. With a height of 24.6 feet and a length of 940 feet, this earth dam has a storage capacity of 687.2 acre-feet and serves to control debris and reduce flood risks in the Eagle Creek-TR watershed.

Despite being classified as having a low hazard potential and a moderate risk assessment, Dd No 5 is regulated, permitted, inspected, and enforced by the Kansas Department of Agriculture. The dam features an uncontrolled spillway with a width of 50 feet and has not been modified since its completion. It does not have any outlet gates or associated structures, and its condition assessment remains unrated.

Water resource and climate enthusiasts will appreciate the data on Dd No 5 for its significance in managing flood risks in the region. This dam plays a crucial role in protecting the surrounding area from potential inundation, demonstrating the importance of proper infrastructure design and maintenance in mitigating natural disasters and ensuring water resource sustainability.

Year Completed

1991

Dam Length

940

Dam Height

24.6

River Or Stream

EAGLE CREEK-TR

Primary Dam Type

Earth

Surface Area

23.5

Drainage Area

1.3

Nid Storage

687.2

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.