Dd No 7-1 (Jammison) Reservoir Report

Last Updated: December 6, 2025

Dd No 7-1 (Jammison) is a local government-owned dam located in Peoria, Kansas, along the West Fork Tauy Creek.


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Summary

Designed by the USDA NRCS and completed in 1984, this Earth-type dam stands at a height of 22 feet and stretches 460 feet in length, providing flood risk reduction for the area. With a storage capacity of 92.6 acre-feet and a normal storage of 16.2 acre-feet, the dam covers a surface area of 3.8 acres and serves a drainage area of 0.26 square miles.

Despite being categorized as having a low hazard potential and a moderate risk assessment, Dd No 7-1 (Jammison) has not been rated in terms of its overall condition assessment. The dam features an uncontrolled spillway with a width of 30 feet and no outlet gates. The structure does not have a designated Emergency Action Plan (EAP) prepared, and the inspection frequency is currently set at 0. As a key component in the flood risk reduction strategy for the area, Dd No 7-1 (Jammison) plays a crucial role in safeguarding the community against potential water-related disasters.

With its strategic location and purpose of flood risk reduction, Dd No 7-1 (Jammison) stands as a vital infrastructure asset in Douglas County, Kansas. As water resource and climate enthusiasts continue to monitor and assess the condition and management of dams like Dd No 7-1, it is essential to ensure that these structures are well-maintained and equipped to handle potential risks and emergencies. By understanding the role and importance of dams like Dd No 7-1 (Jammison), stakeholders can work towards enhancing water resource management and climate resilience in the region.

Year Completed

1984

Dam Length

460

Dam Height

22

River Or Stream

WEST FORK TAUY CREEK-TR

Primary Dam Type

Earth

Surface Area

3.8

Drainage Area

0.26

Nid Storage

92.6

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

22
       
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.