Diamond F Ranch Reservoir Report
Nearby: E. Hoffman No.8 E. Hoffman No. 7
Last Updated: December 6, 2025
Diamond F Ranch is a privately-owned dam located in Meade, South Dakota, along the TR Cheyenne River.
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Summary
Built in 1938, this earth dam stands at 20 feet tall and stretches for 650 feet, with a storage capacity of 256 acre-feet. The dam is regulated by the South Dakota Department of Environment and Natural Resources (DENR) and is subject to state permitting, inspection, and enforcement to ensure its safety and compliance with regulations.
With a low hazard potential and a current condition assessment of "Not Rated," Diamond F Ranch dam serves as a crucial water resource for the surrounding area. Its primary purpose and associated structures are not specified, but it plays a role in managing the flow of the TR Cheyenne River and provides irrigation water to the region. The dam has not been rated for emergency preparedness, risk assessment, or inundation mapping, indicating a potential area for improvement in its safety protocols.
Despite its age, Diamond F Ranch dam continues to serve its community effectively, with a maximum discharge capacity of 3000 cubic feet per second. As a key feature in the local water management system, ongoing monitoring and maintenance are essential to ensure the dam's integrity and safety for both the ranch and downstream areas. Climate enthusiasts will appreciate the role of this dam in sustaining agricultural activities and supporting the ecosystem along the TR Cheyenne River.
Year Completed |
1938 |
Dam Length |
650 |
Dam Height |
20 |
River Or Stream |
TR CHEYNNE |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
256 |
Hazard Potential |
Low |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Diamond F Ranch