Dd No 11-23 Reservoir Report
Nearby: Gs Dd No 11-14 Dd No 6-22
Last Updated: December 13, 2025
Dd No 11-23 is a local government-owned dam located in Nemaha, Kansas, designed by King Engineering and completed in 1992.
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Summary
The dam is situated on Muddy Creek and serves primarily for flood risk reduction, with additional purposes including debris control. With a dam height of 31 feet and a length of 500 feet, Dd No 11-23 has a storage capacity of 171.92 acre-feet and covers a surface area of 5.68 acres.
Managed by the Kansas Department of Agriculture, Dd No 11-23 is state-regulated and subject to regular inspections, permitting, and enforcement. The dam's hazard potential is classified as low, with a moderate risk assessment rating. The spillway type for the dam is uncontrolled, with a width of 60 feet. Despite not having outlet gates, the dam is designed to effectively manage floodwaters and reduce the risk of inundation in the surrounding area.
Overall, Dd No 11-23 is a crucial structure for flood risk mitigation in Nemaha, Kansas, contributing to the protection of nearby communities and infrastructure. As a key component of the local water resource management system, this earth dam plays a vital role in safeguarding against potential flooding events and ensuring the safety and resilience of the area. Climate and water resource enthusiasts will appreciate the detailed information provided about this important infrastructure project and its significance in the region.
Year Completed |
1992 |
Dam Length |
500 |
Dam Height |
31 |
River Or Stream |
MUDDY CREEK |
Primary Dam Type |
Earth |
Surface Area |
5.68 |
Drainage Area |
0.73 |
Nid Storage |
171.92 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Delaware R Nr Muscotah
|
34cfs |
Turkey C Nr Seneca
|
14cfs |
Big Nemaha River At Falls City
|
310cfs |
Vermillion C Nr Wamego
|
8cfs |
Missouri River At Rulo
|
26600cfs |
North Fork Big Nemaha River At Humboldt
|
67cfs |
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 11-23