Dd No 107 Reservoir Report

Last Updated: December 5, 2025

Dd No 107, located in Osage City, Kansas, is a local government-owned dam designed by J.


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Summary

Dale Steward, P.E. It was completed in 1996 for flood risk reduction on the Salt Creek-TR river/stream. This earth dam stands at a height of 21 feet and spans 1738 feet, with a storage capacity of 503.09 acre-feet and a normal storage level of 53.81 acre-feet. Despite being rated with a low hazard potential and not yet assessed for condition, the dam is regulated, permitted, inspected, and enforced by the Kansas Department of Agriculture.

With a spillway width of 40 feet and a maximum discharge of 1000 cubic feet per second, Dd No 107 serves the primary purposes of debris control and flood risk reduction. The dam's moderate risk assessment highlights the importance of ongoing risk management measures to ensure its structural integrity and effectiveness in safeguarding the surrounding area. While no emergency action plan (EAP) or inundation maps are currently in place, the dam's location and design contribute to its overall functionality and impact on the local water resources and climate dynamics.

As a key piece of infrastructure in Lyon County, Kansas, Dd No 107 plays a crucial role in managing water flow and mitigating flood risks in the region. Its presence underscores the importance of proactive monitoring and maintenance to uphold its protective functions and minimize environmental impacts. For water resource and climate enthusiasts, understanding the technical specifications and regulatory oversight of Dd No 107 sheds light on the complex interplay between infrastructure development, natural resource management, and climate resilience in the local context of Osage City and beyond.

Year Completed

1996

Dam Length

1738

Dam Height

21

River Or Stream

SALT CREEK-TR

Primary Dam Type

Earth

Surface Area

17.85

Drainage Area

1.23

Nid Storage

503.09

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

21
       
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.