Frd No 15 Reservoir Report
Nearby: State Fishing Lake Frd No 12
Last Updated: December 5, 2025
Located in Winfield, Kansas, Frd No 15, also known as Rock Creek Watershed Dam 15, is a local government-owned structure designed by USDA SCS.
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Summary
The dam, situated in the Butler County, serves the primary purpose of flood risk reduction along the North Branch Rock Creek-TR. With a dam height of 37 feet and a hydraulic height of 28 feet, it boasts a storage capacity of 552 acre-feet with a normal storage of 39 acre-feet.
The dam, constructed of earth with a buttress core type, spans a length of 915 feet and covers a surface area of 11.24 acres. Although it has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment, Frd No 15 is regulated and inspected by the KS Dept. of Agriculture. The structure has not undergone any modifications since its last inspection in August 2011 and is not equipped with outlet gates or associated structures.
Despite its moderate risk assessment rating, Frd No 15 does not have an Emergency Action Plan in place nor does it meet certain guidelines for risk management. With an uncontrolled spillway type and a spillway width of 40 feet, the dam poses a moderate risk (3) to the surrounding area in case of a potential breach. As water resource and climate enthusiasts, the monitoring and maintenance of this critical infrastructure are essential to ensure the safety and protection of the community and environment it serves.
Dam Length |
915 |
Dam Height |
37 |
River Or Stream |
NORTH BRANCH ROCK CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
11.24 |
Hydraulic Height |
28 |
Drainage Area |
1.46 |
Nid Storage |
552 |
Structural Height |
37 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
37 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Whitewater R At Towanda
|
71cfs |
Walnut R At Winfield
|
581cfs |
Otter C At Climax
|
23cfs |
Elk R At Elk Falls
|
46cfs |
Arkansas R At Derby
|
469cfs |
Arkansas R At Wichita
|
386cfs |
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 15