Dd No 115 Reservoir Report

Last Updated: December 5, 2025

Dd No 115 is a local government-owned earth dam located in Lyon County, Kansas, along Troublesome Creek-TR.


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Summary

Designed by the USDA NRCS, this dam serves the primary purpose of flood risk reduction. With a height of 22.5 feet and a length of 1360 feet, Dd No 115 has a NID storage capacity of 262.42 acre-feet, with a normal storage capacity of 27.42 acre-feet. The dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment.

Managed by the Kansas Department of Agriculture, Dd No 115 is regulated, permitted, inspected, and enforced by the state. The dam features an uncontrolled spillway with a width of 60 feet and has no outlet gates. Although the dam's risk assessment is moderate, with a DSAC assigned date unknown, risk management measures and a detailed risk characterization summary are not available. Despite its low hazard potential, Dd No 115 plays a crucial role in mitigating flood risks in the region and highlights the collaborative effort between local government and state agencies in ensuring water resource and climate resilience.

Dam Length

1360

Dam Height

22.5

River Or Stream

TROUBLESOME CREEK-TR

Primary Dam Type

Earth

Surface Area

8.52

Drainage Area

0.68

Nid Storage

262.42

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

23
       
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.