Dd No A-15 Reservoir Report
Last Updated: December 13, 2025
Dd No A-15, located in Goff, Kansas, is a crucial structure designed for flood risk reduction along the Spring Creek-TR river.
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Summary
Completed in 2005, this earth dam stands at a height of 33 feet and spans a length of 800 feet, providing a storage capacity of 119.8 acre-feet. With a normal storage capacity of 32.8 acre-feet, the dam plays a significant role in managing floodwaters and debris control in the area.
Managed by the Kansas Department of Agriculture, Dd No A-15 is regulated, permitted, inspected, and enforced by the state authorities to ensure its structural integrity and functionality. The dam has a spillway width of 50 feet and a maximum discharge capacity of 744 cfs, making it equipped to handle significant water flow during flood events. With a moderate risk assessment score of 3, the structure is deemed to play a critical role in mitigating flood hazards in the region.
Despite not being rated for its condition assessment, Dd No A-15 remains a key element in the flood risk reduction strategy for Nemaha County, Kansas. With its strategic location and design features, this dam continues to be a vital asset in protecting the local community and environment from the impacts of extreme weather events and water resource challenges.
Year Completed |
2005 |
Dam Length |
800 |
Dam Height |
33 |
River Or Stream |
SPRING CREEK-TR |
Primary Dam Type |
Earth |
Surface Area |
5.1 |
Drainage Area |
0.35 |
Nid Storage |
119.8 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Foundations |
Unlisted/Unknown |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Turkey C Nr Seneca
|
14cfs |
Delaware R Nr Muscotah
|
34cfs |
Vermillion C Nr Wamego
|
8cfs |
Black Vermillion R Nr Frankfort
|
43cfs |
Big Nemaha River At Falls City
|
310cfs |
Soldier C Nr Delia
|
2cfs |
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 A-15