Griffith W.R. Reservoir Report
Last Updated: December 12, 2025
Griffith W.R., located in Noble, Oklahoma, is a privately owned earth dam completed in 1955 with a primary purpose of "Other." The dam stands at a height of 27 feet and has a storage capacity of 75 acre-feet, with a normal storage level of 37 acre-feet.
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Summary
It spans a length of 405 feet and has a spillway width of 1 foot, allowing for controlled water release. The dam is regulated and inspected by the Oklahoma Water Resources Board, with a low hazard potential and a very high risk assessment rating.
Despite being privately owned, Griffith W.R. is subject to state jurisdiction, permitting, inspection, and enforcement. The dam is situated on the TR-POND CR river or stream in McClain County, Oklahoma, within the Tulsa District of the US Army Corps of Engineers. While the condition assessment of the dam is currently listed as "Not Rated," the risk assessment indicates a very high risk level, pointing to the importance of ongoing monitoring and maintenance to ensure its safety and integrity. The last inspection was conducted in July 2005, with a recommended inspection frequency of every 5 years.
In the event of an emergency, Griffith W.R. has one valve outlet gate for water release. The dam is not associated with any other structures and has not been modified in recent years. The dam's risk management measures, emergency action plan, and inundation maps are not currently documented, highlighting areas for potential improvement in emergency preparedness. With its strategic location and vital role in water resource management, Griffith W.R. serves as a key element in Oklahoma's infrastructure for flood control and water storage.
Year Completed |
1955 |
Dam Length |
405 |
Dam Height |
27 |
River Or Stream |
TR-POND CR |
Primary Dam Type |
Earth |
Surface Area |
3 |
Hydraulic Height |
27 |
Nid Storage |
75 |
Structural Height |
27 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
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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.
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