Sd Noname 156 Reservoir Report

Last Updated: December 6, 2025

Sd Noname 156 is a privately owned dam located in Jackson, South Dakota, along the TR-BAD RIVER.


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Summary

Constructed in 1940, this earth dam stands at a height of 19 feet and spans a length of 800 feet, with a maximum storage capacity of 120 acre-feet. Despite its age, the dam is considered to have a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment.

Managed by the South Dakota Department of Environment and Natural Resources (DENR), Sd Noname 156 is subject to state regulations, permitting, inspection, and enforcement. The dam is part of the St. Paul District of the US Army Corps of Engineers and falls within the jurisdiction of Dusty Johnson, the Republican representative for the area. While the dam has not been modified in recent years and lacks certain emergency preparedness measures, its overall risk assessment and management measures are currently not specified.

Water resource and climate enthusiasts may find Sd Noname 156 to be an intriguing case study, showcasing the importance of effective dam management and regulation in ensuring public safety and environmental protection. With its historical significance and ongoing oversight by state and federal agencies, this dam serves as a vital component of water resource infrastructure in the region, highlighting the complex interplay between human development, natural ecosystems, and the need for proactive risk assessment and management in the face of changing climatic conditions.

Year Completed

1940

Dam Length

800

Dam Height

19

River Or Stream

TR-BAD RIVER

Primary Dam Type

Earth

Hydraulic Height

19

Nid Storage

120

Hazard Potential

Low

Nid Height

19
       
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.