Henderson House Dam Reservoir Report

Last Updated: December 6, 2025

Henderson House Dam, located in Fall River, South Dakota, is a privately owned earth dam built in 1928 by the Natural Resources Conservation Service.


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Summary

Standing at 20 feet, with a length of 1100 feet, this dam serves as a critical structure in managing water resources in the area. It has a storage capacity of 400 acre-feet, with a normal storage level of 340 acre-feet, and is situated on a tributary of the Cheyenne River.

With a significant hazard potential, this dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and is subject to regular inspections, permitting, and enforcement to ensure its safety and integrity. The dam plays a crucial role in flood control and water supply management, with a maximum discharge capacity of 2405 cubic feet per second. Despite not having a current condition rating, Henderson House Dam remains a key infrastructure in the region for water resource and climate enthusiasts to monitor and appreciate.

Year Completed

1928

Dam Length

1100

Dam Height

20

River Or Stream

TRIBUTARY OF CHEYENNE RIVER

Primary Dam Type

Earth

Hydraulic Height

20

Nid Storage

400

Hazard Potential

Significant

Nid Height

20
       
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.