Feltman Dam 1 Reservoir Report

Last Updated: December 13, 2025

Feltman Dam 1, located in Chamberlain, South Dakota, was completed in 1952 and stands at a height of 27 feet with a length of 250 feet.


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Summary

Managed by a private owner, the dam is regulated by the South Dakota Department of Environment and Natural Resources, ensuring proper permitting, inspection, and enforcement procedures are in place. With a storage capacity of 36 acre-feet, the dam plays a significant role in water resource management for the region.

Constructed primarily for flood control purposes, Feltman Dam 1 is classified as an earth dam, with a spillway capacity of 660 cubic feet per second. The dam's hazard potential is rated as significant, highlighting the importance of regular inspections and maintenance to ensure its structural integrity. While the condition assessment is currently listed as not rated, efforts are being made to assess and manage any potential risks associated with the dam to protect surrounding communities and the environment.

Managed by the Natural Resources Conservation Service, Feltman Dam 1 serves as a crucial infrastructure for water storage and flood protection in the Brule County area. As climate change continues to impact water resources, the proper regulation and management of dams like Feltman Dam 1 are essential in mitigating potential risks and ensuring the sustainability of water supplies for future generations.

Year Completed

1952

Dam Length

250

Dam Height

27

River Or Stream

TR-MISSONot RatedI

Primary Dam Type

Earth

Hydraulic Height

27

Nid Storage

36

Hazard Potential

Significant

Nid Height

27
       
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.