Pensacola - Wyandotte Levee Reservoir Report
Nearby: Randy Williams Lost Creek F-3
Last Updated: January 12, 2026
The Pensacola-Wyandotte Levee, located in Ottawa County, Oklahoma, along the Grand River, is a vital structure designed for flood risk reduction.
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Summary
Built in 1941 by the US Army Corps of Engineers, this gravity dam stands at a height of 11 feet and stretches over 1300 feet, with a core made of stone. Despite its age, the Pensacola-Wyandotte Levee remains a critical barrier against potential flooding in the region.
With a high hazard potential and a risk assessment rating of 2 (high), emergency action plans have been prepared and updated regularly, meeting guidelines and ensuring the safety of surrounding communities. The levee has undergone inspections every 5 years, with the last assessment conducted in October 2014. Although the condition assessment is currently not available, the structure's integrity is maintained to protect against potential risks and ensure its effectiveness in flood control.
As part of the National Levee Database, the Pensacola-Wyandotte Levee system plays a crucial role in managing water resources and climate impacts in the area. With its history of construction and maintenance by the US Army Corps of Engineers, this levee serves as a testament to the ongoing efforts to mitigate flood risks and protect the local community from potential disasters.
Year Completed |
1941 |
Dam Length |
1300 |
Dam Height |
11 |
River Or Stream |
Grand River |
Primary Dam Type |
Gravity |
Hydraulic Height |
11 |
Structural Height |
11 |
Hazard Potential |
High |
Nid Height |
11 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Spring River Near Quapaw
|
270cfs |
Tar Creek At 22nd Street Bridge
|
5cfs |
Buffalo Creek At Tiff City
|
10cfs |
Elk River Near Tiff City
|
161cfs |
Neosho River Near Commerce
|
3310cfs |
Honey Creek Near South West City
|
16cfs |
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.
Pensacola - Wyandotte Levee