Goc Number 1 Reservoir Report
Nearby: Carl Albright Finley Dam
Last Updated: December 12, 2025
Goc Number 1 is a privately owned earth dam located in Hughes, South Dakota, along the TR-MEDICINE KNOLL CREEK.
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Summary
Built in 1952, this dam stands at a height of 17 feet and has a storage capacity of 87 acre-feet. The dam serves a significant hazard potential and is regulated by the South Dakota Department of Environment and Natural Resources.
Managed by the Natural Resources Conservation Service, Goc Number 1 has not been rated for its current condition but is subject to regular state inspections, permitting, and enforcement. While the dam has not been modified in recent years, it plays a crucial role in flood control and water resource management in the region. With a normal storage capacity of 39 acre-feet and a maximum discharge of 180 cubic feet per second, Goc Number 1 remains a vital infrastructure for the local community.
Although lacking in detailed risk assessment and emergency preparedness measures, Goc Number 1 represents a key component of the water resource infrastructure in South Dakota. As water resource and climate enthusiasts continue to monitor and advocate for sustainable management practices, this dam serves as a critical asset in safeguarding against potential flooding events and ensuring the efficient utilization of water resources in the region.
Year Completed |
1952 |
Dam Length |
360 |
Dam Height |
17 |
River Or Stream |
TR-MEDICINE KNOLL CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
15 |
Nid Storage |
87 |
Hazard Potential |
Significant |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Bad R Near Fort Pierre Sd
|
7cfs |
White R Near Oacoma Sd
|
105cfs |
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.
Goc Number 1