Penrhos Farms #2 Reservoir Report
Nearby: Penrhos Farms #1 Penrhos Farms #5
Last Updated: December 13, 2025
Penrhos Farms #2 is a privately owned earth dam located in Marshall, South Dakota.
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Summary
Completed in 1976, this dam on the TRIB. WILD RICE CREEK has a height of 22 feet and a length of 700 feet, with a storage capacity of 300 acre-feet. With a low hazard potential and a condition assessment that is currently not rated, this dam plays a crucial role in water resource management in the area.
Managed by the South Dakota Department of Environment and Natural Resources (DENR), Penrhos Farms #2 is subject to state regulations, permitting, inspection, and enforcement. Despite its age, the dam has not been modified in recent years and does not have an Emergency Action Plan (EAP) in place. However, it is important to note that the dam meets regulatory guidelines and poses a low risk to the surrounding area.
Located within the St. Paul District of the US Army Corps of Engineers, Penrhos Farms #2 serves as a vital infrastructure for water storage and flood control in the region. As climate change continues to impact water resources, monitoring and maintaining this dam will be essential to ensure the safety and sustainability of water management practices in Marshall, South Dakota.
Year Completed |
1976 |
Dam Length |
700 |
Dam Height |
22 |
River Or Stream |
TRIB. WILD RICE CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
22 |
Nid Storage |
300 |
Hazard Potential |
Low |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Wild Rice River Nr Rutland
|
21cfs |
James River At Nd-Sd State Line
|
194cfs |
James R At Columbia Sd
|
268cfs |
Elm R At Westport Sd
|
12cfs |
Bear Creek Nr Oakes
|
5cfs |
Maple R At Nd-Sd State Line
|
5cfs |
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.
Penrhos Farms #2