Moran Bob Reservoir Report
Nearby: Chambers Gracie Pence Kent
Last Updated: December 15, 2025
Moran Bob is a privately owned earth dam located in Vinson, Oklahoma, along the TR-Salt Fork Red River.
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Summary
Completed in 1966, this dam stands at a height of 25 feet and has a storage capacity of 50 acre-feet. With a spillway type of "Controlled" and a hazard potential rated as "Low," Moran Bob serves multiple purposes beyond water storage, making it a critical infrastructure in the region.
Managed by the Oklahoma Water Resources Board, Moran Bob has state jurisdiction and is subject to regulation, inspection, and enforcement. Although it has not been rated for its condition assessment, the dam's risk assessment is classified as "Very High (1)." With a maximum discharge capacity of 1172 cubic feet per second and a valve outlet system in place, Moran Bob is equipped to handle potential emergencies while maintaining its low hazard potential.
Despite its age, Moran Bob has been regularly inspected every five years, with the last inspection conducted in November 2010. As a crucial piece of water resource infrastructure in Harmon County, Oklahoma, Moran Bob serves as a testament to the importance of maintaining and regulating dams to ensure the safety and security of communities downstream.
Year Completed |
1966 |
Dam Length |
196 |
Dam Height |
25 |
River Or Stream |
TR-SALT FORK RED RIVER |
Primary Dam Type |
Earth |
Surface Area |
1 |
Hydraulic Height |
25 |
Nid Storage |
50 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
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.
Moran Bob