Oknoname 049004 Reservoir Report
Nearby: Allen No.2 Allen No.1
Last Updated: December 15, 2025
Oknoname 049004 is a privately owned earth dam located in Garvin, Oklahoma, near the city of Pauls Valley.
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Summary
Completed in 1960, this dam stands at a height of 20 feet and has a length of 475 feet, providing a storage capacity of 80 acre-feet. The primary purpose of this structure is categorized as 'Other', with a low hazard potential and a very high risk assessment rating.
Managed by the Oklahoma Water Resources Board, Oknoname 049004 is regulated, permitted, inspected, and enforced by the state agency. The dam is designed with a stone core and built on a soil foundation, with a controlled spillway and one outlet valve. Despite not having a condition rating, this dam has not been modified since its construction and is considered to meet safety guidelines.
With a drainage area of 4 square miles and a maximum discharge capacity of 1280 cubic feet per second, Oknoname 049004 plays a crucial role in water resource management for the surrounding area. The dam's location on the TR-Washington Creek contributes to flood control and water supply management in the region, making it a vital infrastructure element for water and climate enthusiasts to monitor and study.
Year Completed |
1960 |
Dam Length |
475 |
Dam Height |
20 |
River Or Stream |
TR-WASHINGTON CR |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
20 |
Nid Storage |
80 |
Structural Height |
20 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Oknoname 049004