Standing Rock Tribe Reservoir Report
Nearby: Krumm Dam Gustaue Aman
Last Updated: December 13, 2025
Standing Rock Tribe is a tribal government located in Wakpala, South Dakota, overseeing the operation of a crucial water supply dam on the TR-Oak Creek river.
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Summary
The dam, completed in 1938, stands at 16 feet high and serves as a vital source of water for the community, with a storage capacity of 288 acre-feet. Despite its age, the dam has a low hazard potential and is currently rated as not assessed for condition, highlighting its importance for water resource management in the region.
The Standing Rock Tribe dam plays a key role in providing water security for the local community, with a normal storage capacity of 140 acre-feet and a maximum discharge of 4,704 cubic feet per second. While the dam's condition assessment is listed as not rated, its low hazard potential suggests a stable structure that continues to support the water supply needs of the area. With no state jurisdiction or regulation, the tribe manages the dam independently, ensuring the efficient operation and maintenance of this essential water infrastructure.
As climate change continues to impact water resources and availability, the Standing Rock Tribe's management of the TR-Oak Creek dam highlights the importance of sustainable water supply infrastructure for tribal communities. With a focus on water supply as the primary purpose of the dam, the tribe's stewardship of this vital resource underscores the need for proactive conservation and management strategies in the face of evolving environmental challenges.
Year Completed |
1938 |
Dam Length |
520 |
Dam Height |
16 |
River Or Stream |
TR-OAK CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
16 |
Nid Storage |
288 |
Structural Height |
16 |
Hazard Potential |
Low |
Nid Height |
16 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Grand R At Little Eagle Sd
|
47cfs |
Cedar Creek Nr Raleigh
|
20cfs |
Cannonball River Nr Raleigh
|
40cfs |
Oak Cr Near Wakpala Sd
|
10cfs |
Cannonball River At Breien
|
96cfs |
Beaver Creek Bl Linton
|
39cfs |
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.
Standing Rock Tribe