Oknoname 049021 Reservoir Report
Last Updated: December 14, 2025
Oknoname 049021 is a privately owned dam located in Wynnewood, Oklahoma, along the TR-East Peavine Creek.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1955, this earth dam stands at 18 feet high and stretches 1500 feet in length, with a storage capacity of 65 acre-feet. Despite its low hazard potential, the risk assessment classifies it as very high, emphasizing the importance of regular inspections and risk management measures to ensure public safety.
Managed by the Oklahoma Water Resources Board, Oknoname 049021 is subject to state regulations, permitting, inspection, and enforcement. The dam features a controlled spillway and a single valve outlet gate, with a maximum discharge capacity of 900 cubic feet per second. Although its condition is currently not rated, the dam's emergency action plan and inundation maps are yet to be prepared, highlighting the need for proactive emergency preparedness in the event of a potential breach.
Located within Garvin County, Oknoname 049021 is under the jurisdiction of the Tulsa District of the US Army Corps of Engineers. With a designated congressman and a history of modifications, this dam serves a primary purpose classified as "other." Water resource and climate enthusiasts will find this structure a fascinating subject for further study, given its unique design, high risk potential, and critical role in water management in the region.
Year Completed |
1955 |
Dam Length |
1500 |
Dam Height |
18 |
River Or Stream |
TR-EAST PEAVINE CREEK |
Primary Dam Type |
Earth |
Surface Area |
9 |
Hydraulic Height |
18 |
Nid Storage |
65 |
Structural Height |
18 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
18 |
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 049021