Bob Downs Reservoir Report
Nearby: Jolly Bob Downs Sherrill Rufus No 2
Last Updated: January 3, 2026
Bob Downs is a privately-owned dam located in Harmon County, Oklahoma, along the Elm Fork of Red River.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 2003 by the USDA NRCS, this earth dam stands at a height of 30.2 feet and has a storage capacity of 68.69 acre-feet. With a low hazard potential but a very high risk assessment rating, this structure is regulated and inspected by the Oklahoma Water Resources Board, ensuring its safety and compliance with state regulations.
Managed by the Natural Resources Conservation Service, Bob Downs serves a primary purpose that falls under the "Other" category. The dam's controlled spillway, outlet gate, and valve system help regulate water levels and ensure the safety of surrounding areas in case of emergencies. Despite being in good condition and not rated for assessment, Bob Downs is subject to regular inspections every five years to maintain its structural integrity and functionality.
Situated in a picturesque location within Vinson, Oklahoma, Bob Downs is not only a vital water resource but also a symbol of sustainable water management practices in the region. Its presence along the Red River tributary contributes to the overall water supply and ecosystem health, making it an essential component for both water resource and climate enthusiasts to appreciate and support.
Year Completed |
2003 |
Dam Length |
78 |
Dam Height |
30.2 |
River Or Stream |
ELM FORK OF RED RIVER |
Primary Dam Type |
Earth |
Surface Area |
8.44 |
Hydraulic Height |
30.2 |
Drainage Area |
363 |
Nid Storage |
68.69 |
Structural Height |
30.2 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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.
Bob Downs