Tallgrass Dam Reservoir Report
Nearby: Oknoname 119004 Cushing Country Club
Last Updated: December 25, 2025
Tallgrass Dam, located in Lincoln, Oklahoma, stands as a vital structure for water supply in the region.
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Summary
Managed by a private entity, this dam on an unnamed tributary to Wildhorse Creek has a relatively low hazard potential, yet a very high risk assessment rating. With a height of 20.5 feet and a storage capacity of 144 acre-feet, the dam plays a crucial role in managing water resources for the surrounding area.
Constructed by Universal Surveying & Mapping LLC, Tallgrass Dam features a controlled spillway with a width of 14 feet. Despite its importance for water supply, the dam's condition assessment remains unrated, highlighting the need for ongoing maintenance and inspection. While the dam has not been modified in recent years, its strategic location and significant storage capacity underscore its critical role in ensuring water availability for the community.
Although Tallgrass Dam has not undergone a recent inspection, the state of Oklahoma regulates and oversees its operation, permitting, and enforcement. With a drainage area of 0.09 square miles and a normal storage capacity of 107 acre-feet, the dam serves as a key infrastructure for water management in the area. As climate change impacts water resources, maintaining and monitoring dams like Tallgrass is crucial for sustainable water supply and climate resilience efforts in the region.
Dam Length |
2100 |
Dam Height |
20.5 |
River Or Stream |
UNNAMED TRIB. TO WILDHORSE CREEK |
Surface Area |
8.8 |
Drainage Area |
0.09 |
Nid Storage |
144 |
Hazard Potential |
Low |
Nid Height |
21 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cimarron River Near Ripley
|
445cfs |
Deep Fork At Warwick
|
29cfs |
Black Bear Creek At Pawnee
|
9cfs |
Cimarron River Near Guthrie
|
436cfs |
North Canadian River Near Harrah
|
147cfs |
Arkansas River At Ralston
|
486cfs |
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.
Tallgrass Dam