Frd No 9-1 Reservoir Report
Nearby: Frd No 9-2 Frd No 9-4
Last Updated: December 5, 2025
Frd No 9-1, also known as Upper Verdigris Watershed Dam 9-1, is a vital structure located in the Halderman Creek in Virgil, Kansas.
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Summary
Owned by the local government and designed by the USDA NRCS, this earth dam serves the primary purpose of flood risk reduction. Completed in 1964, the dam stands at a height of 39 feet and has a storage capacity of 1660.81 acre-feet, with a normal storage level of 167 acre-feet. With a low hazard potential and a moderate risk assessment, the dam plays a crucial role in managing water resources in the region.
Managed by the Kansas Department of Agriculture and regulated by the state, Frd No 9-1 boasts a spillway width of 100 feet and a maximum discharge capacity of 1860 cubic feet per second. Despite its importance in flood risk reduction, the dam's condition assessment is currently not rated, indicating a need for further evaluation. With its location in Greenwood County and proximity to the Kansas City District, this structure serves as a key component in the water infrastructure of the area.
Overall, Frd No 9-1 is a significant earth dam that contributes to water resource management and climate resilience in Kansas. With its strategic design and purposeful construction, this dam plays a vital role in reducing flood risks and ensuring the safety of the local community. As a regulated and inspected structure, Frd No 9-1 stands as a testament to effective water resource management practices and the collaboration between local and state agencies in safeguarding the environment and public safety.
Year Completed |
1964 |
Dam Length |
1265 |
Dam Height |
39 |
River Or Stream |
HALDERMAN CREEK |
Primary Dam Type |
Earth |
Surface Area |
27.13 |
Hydraulic Height |
36 |
Drainage Area |
5.05 |
Nid Storage |
1660.81 |
Structural Height |
39 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
39 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Verdigris R Nr Virgil
|
183cfs |
Neosho R At Burlington
|
2740cfs |
Cottonwood R Nr Plymouth
|
898cfs |
Neosho R Nr Americus
|
75cfs |
Marais Des Cygnes R Nr Reading
|
10cfs |
Otter C At Climax
|
22cfs |
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 9-1