Dd No 6-1 Reservoir Report

Last Updated: December 6, 2025

Dd No 6-1, located in Ottawa, Kansas, is a local government-owned Earth dam designed by King Engineering for flood risk reduction on the Middle Fork Tauy Creek.


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Summary

With a height of 24.5 feet and a length of 890 feet, this dam provides a maximum storage capacity of 184.1 acre-feet and a normal storage of 33.5 acre-feet. Despite being classified as low hazard potential, the dam has a moderate risk assessment score of 3, indicating the need for monitoring and maintenance.

The dam features an uncontrolled spillway with a width of 100 feet and has no outlet gates. While it has not been inspected since 1997, its overall condition is currently rated as "Not Rated." The dam does not have a Emergency Action Plan (EAP) in place, and there are no specific risk management measures identified. As water resource and climate enthusiasts, it is important to keep an eye on the maintenance and monitoring of Dd No 6-1 to ensure its continued effectiveness in flood risk reduction.

In conclusion, Dd No 6-1 serves a crucial role in mitigating flood risks in the Douglas County area of Kansas. As a local government-owned structure, it is essential to prioritize regular inspections, risk assessments, and potentially implement an Emergency Action Plan to enhance the resilience of the dam and ensure the safety of surrounding communities. By staying informed and proactive in its management, water resource and climate enthusiasts can contribute to the sustainable management of this important infrastructure.

Dam Length

890

Dam Height

24.5

River Or Stream

MIDDLE FORK TAUY CREEK-TR

Primary Dam Type

Earth

Surface Area

7.5

Drainage Area

0.88

Nid Storage

184.1

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.