Sd Noname 225 Reservoir Report

Last Updated: December 6, 2025

Sd Noname 225 is a privately owned dam located in Haakon, South Dakota, specifically in the city of MIDLAND.


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Summary

Constructed in 1959, this Earth dam stands at a height of 16 feet with a length of 187 feet, providing a storage capacity of 64 acre-feet. Situated on MITCHELL CREEK OFFSTREAM, this dam plays a crucial role in managing water resources in the area, with a normal storage capacity of 31 acre-feet.

Managed by the Natural Resources Conservation Service, Sd Noname 225 is regulated by the South Dakota Department of Environment and Natural Resources (DENR), ensuring that it meets all state permitting, inspection, and enforcement requirements. The dam has a significant hazard potential and its condition is currently rated as "Not Rated". With a maximum discharge capacity of 360 cubic feet per second, this dam serves as a vital infrastructure for water resource management in the region.

While Sd Noname 225 has not been inspected recently, its emergency action plan (EAP) status and risk assessment measures are currently not available. As a key structure in water resource management, the dam's functionality and safety are essential for preventing potential hazards and ensuring water security for the community. With its significant role in the local ecosystem, Sd Noname 225 represents a crucial element in climate resilience and water management efforts in South Dakota.

Year Completed

1959

Dam Length

187

Dam Height

16

River Or Stream

MITCHELL CREEK OFFSTREAM

Primary Dam Type

Earth

Hydraulic Height

16

Nid Storage

64

Hazard Potential

Significant

Nid Height

16
       
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.