Wientjes Bros No.2 Reservoir Report
Last Updated: December 13, 2025
Wientjes Bros No.2 is a privately owned dam located in Campbell, South Dakota.
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Summary
Built in 1968 by the Natural Resources Conservation Service, this earth dam stands at a height of 27 feet and has a storage capacity of 28 acre-feet. The dam serves the primary purpose of water resource management in the region, with a normal storage level of 20 acre-feet and a maximum discharge rate of 480 cubic feet per second.
Despite its age, Wientjes Bros No.2 has a low hazard potential and is currently rated as being in "Not Rated" condition. The dam is regulated by the South Dakota Department of Environment and Natural Resources, with state jurisdiction, permitting, inspection, and enforcement all in place to ensure its safety and compliance with regulations. With its location on the TR-MISSONot RatedI river or stream and under the oversight of the St. Paul District of the US Army Corps of Engineers, Wientjes Bros No.2 plays a critical role in managing water resources in the area.
While there is limited data available on the specific features of Wientjes Bros No.2, its importance in water resource management in Campbell, South Dakota cannot be understated. As a privately owned structure with state regulation and oversight, the dam contributes to the overall water infrastructure and climate resilience of the region. With its low hazard potential and solid construction, Wientjes Bros No.2 stands as a testament to the importance of effective dam management and maintenance in ensuring water security for local communities.
Year Completed |
1968 |
Dam Length |
190 |
Dam Height |
27 |
River Or Stream |
TR-MISSONot RatedI |
Primary Dam Type |
Earth |
Hydraulic Height |
27 |
Nid Storage |
28 |
Hazard Potential |
Low |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Oak Cr Near Wakpala Sd
|
10cfs |
Grand R At Little Eagle Sd
|
47cfs |
Beaver Creek Bl Linton
|
39cfs |
Moreau R Near Whitehorse Sd
|
35cfs |
Cannonball River At Breien
|
96cfs |
Cedar Creek Nr Raleigh
|
20cfs |
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.
Wientjes Bros No.2