Scs-Tonkawa Creek Site-001 Reservoir Report
Last Updated: December 6, 2025
SCS-Tonkawa Creek Site-001, located in Anadarko, Oklahoma, is a state-regulated dam designed by USDA NRCS with a primary purpose of flood risk reduction.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1969, this earth dam stands at a height of 35 feet and has a hydraulic height of 31 feet, providing storage for up to 679 acre-feet of water. The dam, situated on the Tonkawa Creek, has a controlled spillway and is equipped with a single valve outlet gate.
Despite its low hazard potential, this dam has been classified as having a very high risk due to its location and potential impact on the surrounding area in the event of a failure. The condition of the dam has not been rated, with the last inspection conducted in 1980. While the dam does not fall under USACE jurisdiction, it is subject to state regulatory oversight by the OWRB, with permitting, inspection, and enforcement protocols in place to ensure its safety and compliance with regulations.
Water resource and climate enthusiasts will find SCS-Tonkawa Creek Site-001 to be an interesting case study in flood risk reduction infrastructure in Oklahoma. The dam's design and construction details, along with its risk assessment and regulatory framework, offer valuable insights into the management of water resources in the region. As efforts to address climate change and its impact on water availability and flooding intensify, understanding the role of structures like SCS-Tonkawa Creek Site-001 becomes increasingly important for sustainable water management practices.
Year Completed |
1969 |
Dam Length |
1980 |
Dam Height |
35 |
River Or Stream |
TONKAWA CR |
Primary Dam Type |
Earth |
Surface Area |
26 |
Hydraulic Height |
31 |
Nid Storage |
679 |
Structural Height |
35 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
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.
Scs-Tonkawa Creek Site-001
Scs Pond No. 26 Near Cyril