Frd No T-4 Reservoir Report
Nearby: Frd No Gs 25 Frd No T-2
Last Updated: December 13, 2025
Frd No T-4, also known as the Walnut Creek Watershed Dam T 4, is a vital structure located in Brown County, Kansas, with the primary purpose of flood risk reduction.
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Summary
Built in 1964 by the USDA NRCS, this earth dam stands at 40 feet tall and spans 1000 feet in length, providing essential protection for the surrounding area. With a drainage area of 2.01 square miles and a maximum discharge capacity of 972 cubic feet per second, this dam plays a crucial role in managing water flow and debris control in the region.
Despite its importance, Frd No T-4 is currently classified as having a high hazard potential and poor condition assessment. The last inspection in November 2018 revealed areas in need of improvement, highlighting the urgency for maintenance and upgrades to ensure the dam's continued effectiveness. With a moderate risk level and a history of state regulation and inspection, there is a clear need for proactive risk management measures and emergency preparedness to safeguard the community and environment in case of any unforeseen events.
As water resource and climate enthusiasts, it is essential to recognize the significance of structures like Frd No T-4 in protecting communities from the impacts of flooding. By staying informed about the condition of dams like this one and advocating for necessary improvements and maintenance, we can contribute to the resilience of our water infrastructure and enhance our ability to adapt to a changing climate. Let us work together to support the safety and sustainability of water resources for future generations.
Year Completed |
1964 |
Dam Length |
1000 |
Dam Height |
40 |
River Or Stream |
TERRAPIN CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
13.52 |
Hydraulic Height |
37 |
Drainage Area |
2.01 |
Nid Storage |
645 |
Structural Height |
40 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
40 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Nemaha River At Falls City
|
310cfs |
Missouri River At Rulo
|
26600cfs |
North Fork Big Nemaha River At Humboldt
|
67cfs |
Turkey C Nr Seneca
|
14cfs |
Delaware R Nr Muscotah
|
34cfs |
Tarkio River At Fairfax Mo
|
55cfs |
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 T-4