Dd No 7-27 (Gray) Reservoir Report

Last Updated: December 12, 2025

Dd No 7-27 (Gray) is a local government-owned earth dam located in LeRoy, Kansas, designed by SCS for flood risk reduction along the Long Creek-TR river.


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Summary

The dam has a height of 14.3 feet and a storage capacity of 105.9 acre-feet, with a spillway width of 20 feet. Despite being uncontrolled, the dam has a low hazard potential and a moderate risk assessment rating.

With a primary purpose of flood risk reduction, Dd No 7-27 (Gray) plays a crucial role in protecting the Coffey County community from potential flooding events. The dam was completed with a normal storage capacity of 19.81 acre-feet and a surface area of 7.4 acres, serving a drainage area of 0.2 square miles. While its structural condition has not been rated, the dam is maintained at a low hazard potential level, ensuring the safety of the surrounding areas.

Located within the Kansas City District and overseen by the DCF-0063 state agency, Dd No 7-27 (Gray) stands as a vital infrastructure for flood management in the region. With its strategic location, design, and purpose, the dam exemplifies the importance of water resource management and climate resilience efforts in safeguarding communities from potential natural disasters.

Dam Length

1100

Dam Height

14.3

River Or Stream

LONG CREEK-TR

Primary Dam Type

Earth

Surface Area

7.4

Drainage Area

0.2

Nid Storage

105.9

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

14
       
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.