Frd No 20 (Spillman Creek) Reservoir Report
Last Updated: December 5, 2025
Frd No 20, also known as Spillman Creek, is a flood risk reduction dam located in Lincoln, Kansas.
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Summary
Built in 1980 by the USDA NRCS, this earth dam stands at a height of 33.2 feet and spans a length of 1381 feet. With a normal storage capacity of 34.75 acre-feet and a drainage area of 4.76 square miles, this structure plays a crucial role in mitigating flooding in the area.
Managed by the Kansas Department of Agriculture, Frd No 20 is regulated and inspected regularly to ensure its functionality and safety. Although classified as having a low hazard potential, the dam's risk assessment is rated as moderate (3). Despite not having an official condition assessment, the structure continues to serve its primary purpose of flood risk reduction along Timber Creek.
With its uncontrolled spillway and lack of outlet gates, Frd No 20 remains a key component in the water management infrastructure in the region. Its strategic location and design make it a vital asset in protecting the surrounding area from potential flood events. Enthusiasts of water resources and climate resilience will find Frd No 20 a fascinating example of engineering expertise in water management.
Year Completed |
1980 |
Dam Length |
1381 |
Dam Height |
33.2 |
River Or Stream |
TIMBER CREEK |
Primary Dam Type |
Earth |
Surface Area |
11.41 |
Drainage Area |
4.76 |
Nid Storage |
1583.15 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Saline R At Wilson Dam
|
9cfs |
Saline R At Tescott
|
47cfs |
Salt C Nr Ada
|
88cfs |
Solomon R Nr Glen Elder
|
13cfs |
Solomon R At Beloit
|
19cfs |
Smoky Hill R At Ellsworth
|
26cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Frd No 20 (Spillman Creek)