Goodman Number 1 Reservoir Report
Nearby: Duwayne Slaathaug #1 Robert Calkinsor
Last Updated: December 7, 2025
Goodman Number 1 is a privately owned dam located in Fort Pierre, South Dakota, along the tributary of War Creek.
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Summary
Constructed in 1959, this earth dam stands at a height of 25 feet and has a storage capacity of 47 acre-feet. Managed by the Natural Resources Conservation Service, the dam is regulated by the South Dakota Department of Environment and Natural Resources, with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations.
With a low hazard potential and a condition assessment of "Not Rated," Goodman Number 1 serves as a vital infrastructure for water resource management in the area. Although no associated structures or modifications have been reported, the dam plays a crucial role in regulating water flow and providing essential storage for the surrounding community. Despite its age, Goodman Number 1 continues to operate effectively, contributing to the overall water management efforts in the region.
As a part of the St. Paul District, Goodman Number 1 plays a key role in the local water infrastructure, with a maximum discharge capacity of 504 cubic feet per second. While specific details about emergency action plans and risk management measures are not provided, the dam's presence and operation are essential for maintaining water security and mitigating potential risks in the area. Overall, Goodman Number 1 stands as a testament to the importance of proper dam management and regulation for ensuring water resource sustainability and climate resilience.
Year Completed |
1959 |
Dam Length |
390 |
Dam Height |
25 |
River Or Stream |
TRIB. WAR CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
25 |
Nid Storage |
47 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Goodman Number 1