Kalmar Ej Reservoir Report
Last Updated: December 6, 2025
Kalmar Ej, located in Pontotoc, Oklahoma, is a privately owned earth dam constructed in 1965 for flood risk reduction along the TR-LEADER CREEK.
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Summary
With a height of 18 feet and a length of 300 feet, this dam has a storage capacity of 57 acre-feet and a normal storage of 22 acre-feet. Despite its low hazard potential, the dam is regulated by the Oklahoma Water Resources Board (OWRB) and undergoes regular inspections, with the last one conducted in May 2010.
The dam features a controlled spillway, outlet gate, and a valve for water management. It is designed to handle a maximum discharge of 640 cubic feet per second, providing flood protection for the surrounding area. The risk assessment for Kalmar Ej is rated as very high, indicating the importance of maintaining and monitoring the dam to ensure its continued functionality in reducing flood risks in the region. The dam's location in Olney, Oklahoma, and its proximity to the Tulsa District add to its significance in water resource management.
For water resource and climate enthusiasts, Kalmar Ej presents a fascinating case study in dam engineering and flood risk reduction. With its earth structure and stone core, the dam stands as a testament to human efforts to control and manage water resources for the benefit of communities. The involvement of the OWRB and the regular inspections ensure that the dam remains in good condition to fulfill its primary purpose effectively. As a vital infrastructure in the region, Kalmar Ej plays a crucial role in safeguarding against potential floods and highlights the importance of proactive risk management in water resource projects.
Year Completed |
1965 |
Dam Length |
300 |
Dam Height |
18 |
River Or Stream |
TR-LEADER CREEK |
Primary Dam Type |
Earth |
Surface Area |
16 |
Hydraulic Height |
18 |
Nid Storage |
57 |
Structural Height |
18 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Little River Near Sasakwa
|
12cfs |
Canadian River At Calvin
|
361cfs |
Blue River Near Connerville
|
54cfs |
Pennington Creek Near Reagan
|
7cfs |
Rock Creek At Sulphur
|
8cfs |
Clear Boggy Creek Near Caney
|
423cfs |
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.
Kalmar Ej