Oknoname 049017 Reservoir Report
Last Updated: December 7, 2025
Oknoname 049017, located in Garvin, Oklahoma, is a privately owned earth dam on the TR-Washita River with a height of 20 feet and a hydraulic height of 17 feet.
°F
°F
mph
Wind
%
Humidity
Summary
Constructed in 1960, this dam serves a primary purpose of "Other" and has a storage capacity of 55 acre-feet. With a low hazard potential and a very high risk assessment rating, this structure is under the jurisdiction of the Oklahoma Water Resources Board and is subject to state regulation, inspection, and enforcement.
Despite its relatively small surface area of 4 acres, Oknoname 049017 plays a crucial role in managing the flow of the TR-Washita River and has a controlled spillway with a width of 1 foot. The dam's condition assessment is currently "Not Rated," indicating a need for further evaluation. Emergency action preparedness, risk management measures, and inundation maps are areas that require attention to ensure the safety and security of the surrounding area in case of a potential breach.
With Congressman Tom Cole representing the area in the US House of Representatives, Oknoname 049017 stands as a vital infrastructure for water resource management in Oklahoma. Its importance lies in its ability to regulate water flow, mitigate flooding, and provide essential storage capacity for the local community. Continued monitoring, maintenance, and improvements will be crucial to ensuring the long-term functionality and safety of this essential structure in the face of changing climate patterns and water resource challenges.
Year Completed |
1960 |
Dam Length |
325 |
Dam Height |
20 |
River Or Stream |
TR-WASHITA RIVER |
Primary Dam Type |
Earth |
Surface Area |
4 |
Hydraulic Height |
17 |
Nid Storage |
55 |
Structural Height |
20 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Criner Creek Near Criner
|
1cfs |
Washita River At Alex
|
243cfs |
Walnut Creek At Purcell
|
31cfs |
Little Washita River East Of Ninnekah
|
19cfs |
Washita River Near Pauls Valley
|
337cfs |
Canadian River At Purcell
|
212cfs |
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 049017