Gs Dd No 11-7 Reservoir Report
Last Updated: December 13, 2025
Gs Dd No 11-7 is a debris control dam located in Brown County, Kansas, with a primary purpose of debris control and flood risk reduction.
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Summary
The dam is owned by the local government and regulated by the Kansas Department of Agriculture. It has a low hazard potential and a moderate risk assessment rating.
Constructed with an earth dam type and buttress core, Gs Dd No 11-7 stands at a height of 31 feet and spans a length of 600 feet. The dam has a storage capacity of 229.56 acre-feet and a normal storage level of 12 feet. It also features an uncontrolled spillway with a width of 40 feet and a maximum discharge capacity of 1360 cubic feet per second.
Despite not being rated for condition assessment, Gs Dd No 11-7 serves as a vital infrastructure for managing debris and reducing flood risks in the area. With its location in the Rock Island District and oversight by the local government, the dam plays a crucial role in safeguarding the surrounding community and water resources.
Dam Length |
600 |
Dam Height |
31 |
Primary Dam Type |
Earth |
Surface Area |
6.22 |
Drainage Area |
0.56 |
Nid Storage |
229.56 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Delaware R Nr Muscotah
|
37cfs |
Missouri River At Rulo
|
28600cfs |
Big Nemaha River At Falls City
|
310cfs |
Stranger C Nr Potter
|
199cfs |
Missouri River At St. Joseph
|
27300cfs |
Nodaway River Near Graham
|
134cfs |
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.
Gs Dd No 11-7