Conoco Reservoir Report
Nearby: Oknoname 137081 Nolan Pool Pond No. 1
Last Updated: December 21, 2025
Conoco is a private water supply dam located in Loco, Oklahoma.
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Summary
Built in 1960, this earth dam stands at 22 feet high and has a storage capacity of 218 acre-feet. The dam serves the primary purpose of supplying water and is regulated by the Oklahoma Water Resources Board. It is situated on the Willow Branch Negro Creek, within the jurisdiction of Stephens County, Oklahoma.
With a low hazard potential and a very high risk assessment rating, Conoco is monitored for safety and regularly inspected by the state regulatory agency. The dam has a controlled spillway and one outlet gate for water management. Despite its age, Conoco has not been rated for its current condition, but it meets the necessary guidelines for emergency action planning. The dam poses a significant risk due to its high-risk classification, emphasizing the importance of ongoing management and maintenance to ensure the safety of the surrounding community and water resources.
Conoco's location in Oklahoma, its historical significance as a water supply structure, and its connection to the state's regulatory agency make it a vital asset in the region's water resource management. As climate change impacts continue to affect water availability and quality, the maintenance and upkeep of dams like Conoco become increasingly crucial for ensuring sustainable water supplies for both human and environmental needs. Its role in water supply and regulation underscores the importance of proactive risk management and emergency preparedness in safeguarding this essential resource for future generations.
Year Completed |
1960 |
Dam Length |
810 |
Dam Height |
22 |
River Or Stream |
WILLOW BRANCH NEGRO CR |
Primary Dam Type |
Earth |
Hydraulic Height |
17 |
Nid Storage |
218 |
Structural Height |
22 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Mud Creek Near Courtney
|
0cfs |
East Cache Creek Near Walters
|
23cfs |
Red Rv Nr Terral
|
154cfs |
Beaver Ck Nr Ringgold
|
145cfs |
Belknap Ck Nr Ringgold
|
112cfs |
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.
Conoco