Jackson J.E. Reservoir Report
Nearby: Conoco Oknoname 137081
Last Updated: December 21, 2025
Jackson J.E.
°F
°F
mph
Wind
%
Humidity
Summary
is a privately owned dam located in Jefferson, Oklahoma, specifically on TR Negro Creek near HWY 70 Bridge. Built in 1950, this Earth-type dam stands at 18 feet in height and spans 244 feet in length, providing a storage capacity of 89 acre-feet. While the dam is designated as low hazard potential, it is also classified as having a very high risk due to its condition assessment not being rated.
Despite being privately owned, Jackson J.E. falls under the regulatory jurisdiction of the Oklahoma Water Resources Board (OWRB) with state permitting, inspection, and enforcement in place. The dam's primary purpose is categorized as "Other," and it features a controlled spillway with a width of 1 foot and a single valve outlet gate. The last inspection of the dam was conducted in November 2010, with a scheduled inspection frequency of 5 years.
For water resource and climate enthusiasts, Jackson J.E. presents an intriguing case study of a privately owned dam in Oklahoma with a unique risk profile. With its location on TR Negro Creek and the presence of regulatory oversight from the OWRB, this dam serves as a focal point for understanding the complexities of managing water infrastructure in the state. The combination of low hazard potential and very high risk status underscores the importance of ongoing assessment and maintenance to ensure the safety and effectiveness of this vital water resource structure.
Year Completed |
1950 |
Dam Length |
244 |
Dam Height |
18 |
River Or Stream |
TR NEGRO CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
18 |
Nid Storage |
89 |
Structural Height |
18 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Mud Creek Near Courtney
|
0cfs |
Red Rv Nr Terral
|
154cfs |
Beaver Ck Nr Ringgold
|
145cfs |
Belknap Ck Nr Ringgold
|
112cfs |
East Cache Creek Near Walters
|
23cfs |
Wichita Rv Nr Charlie
|
1850cfs |
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.
Jackson J.E.