Norman Number 1 Reservoir Report

Last Updated: December 13, 2025

Norman Number 1 is a private dam located in Stanley, South Dakota, along the TR-FOSTER CREEK.


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Summary

Built in 1967 by the Natural Resources Conservation Service, this earth dam stands at a height of 31 feet with a hydraulic height of 25 feet. The dam has a maximum storage capacity of 30 acre-feet and a normal storage capacity of 20 acre-feet, serving as a vital resource for water management in the area.

Despite its low hazard potential, Norman Number 1 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. The dam has not been rated for its condition assessment, but it remains an essential structure for flood control and water supply in the region. With its strategic location and design, Norman Number 1 plays a significant role in managing water resources and mitigating the impacts of climate variability in the area.

As a key infrastructure in the St. Paul District, Norman Number 1 contributes to the overall water management efforts in South Dakota. With its modest dimensions and functional design, this dam exemplifies the importance of private ownership in maintaining water resources and adapting to changing climate conditions. As water resource and climate enthusiasts, understanding and monitoring structures like Norman Number 1 is crucial for sustainable water management practices and environmental resilience in the face of climate challenges.

Year Completed

1967

Dam Length

412

Dam Height

31

River Or Stream

TR-FOSTER CREEK

Primary Dam Type

Earth

Hydraulic Height

25

Nid Storage

30

Hazard Potential

Low

Nid Height

31
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.