Gsd No B-27 (Gc 7) Reservoir Report
Nearby: Gsd No B-45 (Gc 8) Gsd No B-44 (Gc 9)
Last Updated: December 10, 2025
Located in Atchison, Kansas, Gsd No B-27 (Gc 7) is a local government-owned structure designed by USDA NRCS for debris control purposes.
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Summary
This earth dam, standing at 24 feet high and stretching 760 feet in length, serves to protect the surrounding area from potential hazards. With a storage capacity of 720 acre-feet and a drainage area of 1.93 square miles, the dam plays a crucial role in managing water resources in the region.
Managed by the Kansas Department of Agriculture, Gsd No B-27 (Gc 7) is regulated, inspected, and enforced by state authorities to ensure its safety and functionality. Despite its low hazard potential, the dam is considered to have a moderate risk level, prompting the need for risk management measures. With a spillway width of 40 feet and a maximum discharge capacity of 1400 cubic feet per second, the structure is equipped to handle excess water flow and protect the downstream areas from flooding.
Although the condition of Gsd No B-27 (Gc 7) is currently not rated, its primary purpose of debris control highlights its importance in safeguarding the local environment and water resources. As climate change continues to impact the region, structures like this play a vital role in mitigating potential risks and ensuring the resilience of communities against natural disasters.
Dam Length |
760 |
Dam Height |
24 |
Primary Dam Type |
Earth |
Surface Area |
21 |
Drainage Area |
1.93 |
Nid Storage |
720 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Delaware R Nr Muscotah
|
40cfs |
Stranger C Nr Potter
|
199cfs |
Delaware R Bl Perry Dam
|
124cfs |
Big Nemaha River At Falls City
|
310cfs |
Missouri River At Rulo
|
25500cfs |
Missouri River At St. Joseph
|
23900cfs |
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.
Gsd No B-27 (Gc 7)