Summary
Built in 1972 by USDA NRCS, this earth dam stands at a height of 35 feet and serves the primary purpose of flood risk reduction. With a storage capacity of 445.87 acre-feet, it covers a surface area of 11.1 acres and drains a watershed area of 1.39 square miles.
Managed by the Kansas Department of Agriculture, Dd No 9 is regulated, permitted, inspected, and enforced to ensure its functionality and safety. Despite its low hazard potential, the dam's risk assessment indicates a moderate risk level (3). While the structure has not been rated for its condition, it plays a crucial role in mitigating flooding in the region and protecting the surrounding community and environment.
With its uncontrolled spillway and lack of outlet gates, Dd No 9 remains a key component in the flood risk management strategy for Wilson County, Kansas. As water resource and climate enthusiasts, understanding and monitoring the condition and functionality of this dam is essential for ensuring the safety and resilience of the local watershed and community in the face of changing weather patterns and hydrological conditions.
Year Completed |
1972 |
Dam Length |
840 |
Dam Height |
35 |
River Or Stream |
BIG CEDAR CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
11.1 |
Hydraulic Height |
26 |
Drainage Area |
1.39 |
Nid Storage |
445.87 |
Structural Height |
35 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
35 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Verdigris R Nr Altoona
|
206cfs |
Fall R At Fredonia
|
374cfs |
Neosho R Nr Iola
|
944cfs |
Verdigris R At Independence
|
640cfs |
Neosho R Nr Parsons
|
1070cfs |
Verdigris R Nr Virgil
|
104cfs |
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.
Dd No 9