Fho Ranch No.1 Reservoir Report

Last Updated: December 13, 2025

Fho Ranch No.1 is a privately owned earth dam located in Jones, South Dakota, along the TR-BAD River.


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Summary

Constructed in 1977 by the USDA NRCS, this dam stands at a height of 25 feet and spans a length of 245 feet, providing a maximum storage capacity of 21 acre-feet. With a low hazard potential and a moderate risk assessment, this structure is regulated and inspected by the South Dakota Department of Environment and Natural Resources, ensuring its safety and compliance with state regulations.

Despite its simple design, Fho Ranch No.1 plays a crucial role in water resource management and flood control in the region. The dam features an uncontrolled spillway with a width of 110 feet, allowing for a maximum discharge of 1500 cubic feet per second. Its primary purpose and associated structures are not specified, but its presence on the TR-BAD River contributes to the overall water management efforts in the area.

With its location within the St. Paul District of the US Army Corps of Engineers and oversight by the Natural Resources Conservation Service, Fho Ranch No.1 serves as a significant component of the local water infrastructure. While its condition is not currently rated, the dam's regulatory compliance, low hazard potential, and moderate risk assessment highlight its importance in mitigating flood risks and ensuring water resource sustainability in South Dakota.

Year Completed

1977

Dam Length

245

Dam Height

25

River Or Stream

TR-BAD RIVER

Primary Dam Type

Earth

Hydraulic Height

25

Nid Storage

21

Hazard Potential

Low

Foundations

Soil

Nid Height

25
       
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.