Grellner Reservoir Report
Nearby: Oknoname 073003 Oknoname 073006
Last Updated: December 19, 2025
Grellner is a private water resource in Kingfisher, Oklahoma, regulated by the Oklahoma Water Resources Board.
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Summary
This irrigation structure has a dam height of 25 feet and a hydraulic height of 19 feet, with a storage capacity of 276 acre-feet. With a drainage area of 680 acres and a surface area of 21.7 acres, Grellner plays a crucial role in water management in the region.
Although Grellner has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment, it undergoes inspections every 5 years to ensure its safety and functionality. The dam, with a length of 1800 feet, serves as an important resource for irrigation purposes, providing water for agricultural activities in the area. Additionally, with a maximum discharge of 30 cubic feet per second, Grellner plays a significant role in managing water levels and flow in the region.
The structure does not have an Emergency Action Plan (EAP) in place, but it is equipped with outlet gates for water release if needed. While it is not under the jurisdiction of any federal agency, Grellner remains an essential resource for water management in Kingfisher, Oklahoma, contributing to the overall sustainability and efficiency of water utilization in the area.
Dam Length |
1800 |
Dam Height |
25 |
Surface Area |
21.7 |
Hydraulic Height |
19 |
Drainage Area |
680 |
Nid Storage |
276 |
Structural Height |
25 |
Hazard Potential |
Low |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cimarron River Near Dover
|
304cfs |
Cottonwood Creek Near Seward
|
61cfs |
Skeleton Creek Near Lovell
|
27cfs |
North Canadian River Near Yukon
|
155cfs |
North Canadian River Near El Reno
|
93cfs |
Cimarron River Near Guthrie
|
448cfs |
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.
Grellner