C. Wulff Stockwater Dam Reservoir Report
Nearby: Wooledge Dam Wulff Dam
Last Updated: December 13, 2025
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Summary
Wulff Stockwater Dam, located in Buffalo, South Dakota, is a privately owned earth dam that was completed in 1956 by the Natural Resources Conservation Service. With a height of 33 feet and a length of 238 feet, the dam has a storage capacity of 68 acre-feet and a maximum discharge of 280 cubic feet per second. The primary purpose of this dam is to provide stockwater for local agricultural operations in the area.
The dam is state-regulated and inspected, with the Department of Environment and Natural Resources overseeing its permitting, enforcement, and regulatory processes. Despite being rated as having a low hazard potential, the dam's condition assessment is currently listed as 'Not Rated'. While the dam has not been modified in recent years and lacks certain emergency preparedness features such as an Emergency Action Plan, the risk associated with the dam is currently not fully assessed or managed.
Overall, C. Wulff Stockwater Dam serves as a crucial water resource for the Buffalo area, supporting agricultural activities and providing water storage capacity. With ongoing state regulation and inspection, the dam continues to play a vital role in water management in South Dakota.
Year Completed |
1956 |
Dam Length |
238 |
Dam Height |
33 |
River Or Stream |
TR-MISSONot RatedI |
Primary Dam Type |
Earth |
Hydraulic Height |
33 |
Nid Storage |
68 |
Hazard Potential |
Low |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
White R Near Oacoma Sd
|
105cfs |
Firesteel Cr Near Mount Vernon Sd
|
0cfs |
James R At Huron Sd
|
548cfs |
James R Near Forestburg Sd
|
560cfs |
Platte Creek Near Platte
|
3cfs |
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.
C. Wulff Stockwater Dam