Oknoname 121020 Reservoir Report
Nearby: Ward Ranch Oknoname 121014
Last Updated: December 6, 2025
Oknoname 121020 is a privately owned earth dam located in Pittsburg, Oklahoma, near the Lone Oak Church.
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Summary
Built in 1937, the dam stands at 20 feet high with a hydraulic height of 16 feet, serving a primary purpose categorized as 'Other'. It has a storage capacity of 66 acre-feet and a normal storage level of 33 acre-feet. The dam is regulated by the Oklahoma Water Resources Board (OWRB) and has state jurisdiction, permitting, inspection, and enforcement in place.
Despite being classified as having a low hazard potential, Oknoname 121020 is identified as having a very high risk level, with a risk assessment rating of 1. The dam features a controlled spillway and one valve outlet gate. The last inspection was conducted in May 2011, with an inspection frequency of 5 years. The dam's condition is currently labeled as 'Not Rated', indicating a need for further assessment and evaluation to ensure its structural integrity and safety.
Located along the TR-CANADIAN RIV river/stream, Oknoname 121020 is under the oversight of the Tulsa District of the US Army Corps of Engineers. With its historical significance dating back to the 1930s, the dam presents a valuable case study for water resource and climate enthusiasts interested in the management and regulation of aging infrastructure in Oklahoma.
Year Completed |
1937 |
Dam Length |
30 |
Dam Height |
20 |
River Or Stream |
TR-CANADIAN RIV |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
16 |
Nid Storage |
66 |
Structural Height |
20 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
North Canadian River Near Wetumka
|
209cfs |
Canadian River At Calvin
|
361cfs |
Little River Near Sasakwa
|
12cfs |
Canadian River Near Whitefield
|
1190cfs |
Deep Fork Near Beggs
|
141cfs |
Fourche Maline Near Red Oak
|
1cfs |
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 121020