Summary
Completed in 1983, this dam stands at a height of 34.7 feet with a length of 1440 feet, providing a normal storage capacity of 116 acre-feet and a maximum discharge of 5866 cubic feet per second. Despite its satisfactory condition assessment, the dam poses a high hazard potential and is subject to regular state inspection, permitting, and enforcement by the Kansas Department of Agriculture.
With a spillway width of 200 feet and uncontrolled spillway type, Frd No 20 has a moderate risk assessment rating of 3. The dam's purpose solely focuses on flood risk reduction, serving as a crucial infrastructure for water resource management in the area. Although no emergency action plan or inundation maps have been prepared, the dam's satisfactory condition and regular inspection frequency of 3 years ensure its operational safety and effectiveness. Managed by the Natural Resources Conservation Service, Frd No 20 remains a vital component in mitigating flood risks along Walnut Creek-TR and safeguarding the surrounding communities in Alexander, Kansas.
Year Completed |
1983 |
Dam Length |
1440 |
Dam Height |
34.7 |
River Or Stream |
WALNUT CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
24 |
Drainage Area |
5.7 |
Nid Storage |
2018 |
Outlet Gates |
None |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
35 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Walnut C At Nekoma
|
4cfs |
Pawnee R Nr Burdett
|
0cfs |
Pawnee R At Rozel
|
3cfs |
Smoky Hill R Nr Schoenchen
|
2cfs |
Smoky Hill R Bl Schoenchen
|
1cfs |
Smoky Hill R At Pfeifer
|
1cfs |
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