Dd No 105 Reservoir Report

Last Updated: December 17, 2025

Dd No 105, located in Cowley County, Kansas, is a local government-owned earth dam designed by Norman L.


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Summary

Roelfs, P.E. The dam, completed in 1980, serves as a crucial flood risk reduction structure on Grouse Creek-TR. With a height of 46 feet and a length of 1050 feet, Dd No 105 has a storage capacity of 1190 acre-feet and covers a surface area of 14.3 acres. Despite being classified as having a low hazard potential, the dam is regularly inspected and maintained to ensure its satisfactory condition.

The primary purpose of Dd No 105 is flood risk reduction, with its uncontrolled spillway having a width of 120 feet. The dam is regulated by the Kansas Department of Agriculture and falls under state jurisdiction for permitting, inspection, and enforcement. Although the risk assessment for Dd No 105 is moderate, with a DSAC assigned date of None, the structure meets guidelines and has emergency contact information updated regularly.

Overall, Dd No 105 plays a vital role in managing water resources and mitigating flood risks in the region. Its strategic location and design, combined with regular inspections and maintenance, ensure that the dam continues to serve its purpose effectively. Climate and water resource enthusiasts can appreciate the importance of structures like Dd No 105 in safeguarding communities and ecosystems from the impacts of extreme weather events.

Year Completed

1980

Dam Length

1050

Dam Height

46

River Or Stream

GROUSE CREEK-TR

Primary Dam Type

Earth

Surface Area

14.3

Drainage Area

3.24

Nid Storage

1190

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

46
       
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.
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