Tj Simek Reservoir Report
Nearby: Prague Lake Scs-Robinson Creek Site-3
Last Updated: December 8, 2025
Tj Simek, located in Lincoln, Oklahoma, is a private earth dam constructed in 1984 under the guidance of the USDA NRCS.
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Summary
This dam, regulated by the Oklahoma Water Resources Board, plays a crucial role in managing water resources in the area. With a height of 27.5 feet and a storage capacity of 172 acre-feet, Tj Simek primarily serves purposes beyond flood control, showcasing its versatility in water management.
Situated on Robinson Creek within the Tulsa District, Tj Simek boasts a controlled spillway and a low hazard potential, making it a reliable infrastructure for water conservation. Despite its low hazard potential, the risk assessment for Tj Simek indicates a very high risk level, emphasizing the importance of ongoing monitoring and management. With only one valve outlet gate for water release, this dam requires periodic inspections every five years to ensure its structural integrity and functionality in the face of climate variability and changing water demands.
As a significant water management structure in the region, Tj Simek stands as a testament to the collaborative efforts of private owners and government agencies in safeguarding water resources. Its role in regulating water flow, storing vital water supplies, and minimizing flood risks underscores the critical importance of such infrastructure in sustaining the natural environment and meeting the diverse needs of the community.
Year Completed |
1984 |
Dam Height |
27.5 |
River Or Stream |
ROBINSON CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
27.5 |
Drainage Area |
0.57 |
Nid Storage |
172 |
Structural Height |
27.5 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Nid Height |
28 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Canadian River At Shawnee
|
166cfs |
Deep Fork At Warwick
|
23cfs |
Little River Near Tecumseh
|
7cfs |
North Canadian River Near Harrah
|
123cfs |
North Canadian River Near Wetumka
|
200cfs |
Cimarron River Near Ripley
|
528cfs |
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.
Tj Simek