Frd No 21 (Spillman Creek) Reservoir Report

Last Updated: December 5, 2025

Located in Lincoln, Kansas, Frd No 21, also known as Spillman Creek Watershed Dam 21, is a Local Government-owned structure designed by USDA NRCS for flood risk reduction.


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Summary

Built in 1974, this earth-type dam stands at 27 feet tall, with a hydraulic height of 24 feet and a length of 970 feet. With a storage capacity of 321.53 acre-feet and a normal storage level of 44 feet, this dam serves the primary purpose of mitigating flood risks in the area.

Situated on Little Timber Creek-TR, Frd No 21 is regulated by the Kansas Department of Agriculture and undergoes regular inspections to ensure its structural integrity and continued functionality. The dam has a low hazard potential and a moderate risk assessment, making it vital for maintaining the safety and security of the surrounding community. Despite not having a current condition assessment, this dam plays a crucial role in water resource management in the region.

With its uncontrolled spillway type and a spillway width of 50 feet, Frd No 21 is equipped to handle potential overflow events effectively. While there are no outlet gates associated with this structure, its presence helps to safeguard against flooding and offers a crucial line of defense against water-related disasters. As climate change continues to impact water resources, structures like Frd No 21 become increasingly essential for ensuring the resilience and sustainability of water management systems in the face of evolving environmental challenges.

Year Completed

1974

Dam Length

970

Dam Height

27

River Or Stream

LITTLE TIMBER CREEK-TR

Primary Dam Type

Earth

Surface Area

10.35

Hydraulic Height

24

Drainage Area

0.88

Nid Storage

321.53

Structural Height

27

Outlet Gates

None

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

27
       
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.