Frd No E-11 Reservoir Report
Nearby: Frd No F-6 Dd No F-12
Last Updated: December 6, 2025
Frd No E-11, also known as Fall River Watershed Dam E-11, is a crucial earth dam located in Eureka, Kansas, designed by the USDA NRCS to address flood risk reduction in the East Branch Fall River-TR area.
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Summary
Completed in 1965, this dam stands at 40 feet high with a structural height of 45 feet, spanning 1570 feet in length. With a maximum storage capacity of 1760 acre-feet and a normal storage of 125 acre-feet, Frd No E-11 plays a significant role in managing water resources in Greenwood County, Kansas.
This dam is state-regulated by the Kansas Department of Agriculture, with regular inspections and enforcement ensuring its structural integrity and operational efficiency. Despite being classified as having a significant hazard potential, Frd No E-11 is assessed to be in fair condition, with an inspection frequency of every five years. The dam's spillway type is uncontrolled, with a width of 40 feet, allowing for the controlled release of water during periods of high discharge. Overall, Frd No E-11 serves as a vital infrastructure for flood risk reduction in the region, showcasing the importance of proper water resource management in mitigating the impacts of climate change.
Water resource and climate enthusiasts will appreciate the detailed information available about Frd No E-11, from its design and construction by the Natural Resources Conservation Service to its role in flood risk reduction in the East Branch Fall River-TR area. The dam's location in Eureka, Kansas, within the Kansas City District, highlights its strategic importance in managing water flow and storage within the region. With a fair condition assessment and moderate risk level, Frd No E-11 exemplifies the ongoing efforts to maintain and regulate essential water infrastructure to protect communities and the environment from potential hazards.
Year Completed |
1965 |
Dam Length |
1570 |
Dam Height |
40 |
River Or Stream |
EAST BRANCH FALL RIVER-TR |
Primary Dam Type |
Earth |
Surface Area |
21.8 |
Hydraulic Height |
40 |
Drainage Area |
3.6 |
Nid Storage |
1760 |
Structural Height |
45 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
45 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Otter C At Climax
|
22cfs |
Verdigris R Nr Virgil
|
183cfs |
Cedar C Nr Cedar Point
|
61cfs |
Cottonwood R Nr Plymouth
|
898cfs |
Whitewater R At Towanda
|
64cfs |
Elk R At Elk Falls
|
41cfs |
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 E-11