Sd Noname 37 Reservoir Report

Last Updated: December 5, 2025

Sd Noname 37 is a privately owned dam located in Haakon, South Dakota, along the TR-BAD RIVER.


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Summary

Built in 1957, this earthen dam stands at a height of 19 feet and spans a length of 420 feet, with a storage capacity of 91 acre-feet. While the dam is regulated by the South Dakota Department of Environment and Natural Resources, it has not been rated for its condition assessment and is classified as having a low hazard potential.

Managed by the Natural Resources Conservation Service, Sd Noname 37 plays a crucial role in water resource management and flood control in the region. With a maximum discharge capacity of 750 cubic feet per second, the dam helps regulate water flow and storage, safeguarding nearby communities from potential flooding events. Despite its low hazard potential, the dam's condition assessment remains unrated, highlighting the need for regular inspections and maintenance to ensure its continued safety and effectiveness.

The dam does not have an Emergency Action Plan in place, raising concerns about emergency preparedness and response in case of unforeseen events. With the potential risks associated with dam failure, it is essential for the owners and regulatory agencies to prioritize the development of an EAP and implement necessary risk management measures to protect the surrounding environment and communities.

Year Completed

1957

Dam Length

420

Dam Height

19

River Or Stream

TR-BAD RIVER

Primary Dam Type

Earth

Hydraulic Height

19

Nid Storage

91

Hazard Potential

Low

Nid Height

19
       
Seasonal Comparison

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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.