Barby No 5 Reservoir Report
Nearby: Evans Chambers Lake Barby No 3
Last Updated: December 20, 2025
Barby No 5 is a privately owned earth dam located in Beaver, Oklahoma, along the TR-BEAVER RIVER.
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Summary
Constructed in 1959 by the USDA NRCS, this dam stands at a height of 32 feet and spans 541 feet in length, providing a storage capacity of 160 acre-feet. The dam's primary purpose is categorized as 'Other,' with a spillway type of 'Controlled' and a low hazard potential.
Managed by the Oklahoma Water Resources Board, Barby No 5 is subject to state regulation, permitting, inspection, and enforcement to ensure its structural integrity and safety. Despite not being rated for its condition assessment, the risk assessment for this dam indicates a very high risk level (level 1). The dam features a single valve outlet gate and has not been modified in recent years, with the last inspection conducted in July 2010.
For water resource and climate enthusiasts, Barby No 5 presents an intriguing case study in dam infrastructure management and risk assessment. As a vital component of the region's water resource system, understanding the maintenance and potential vulnerabilities of this structure is essential for ensuring the safety and sustainability of water management practices in the Beaver, Oklahoma area.
Year Completed |
1959 |
Dam Length |
541 |
Dam Height |
32 |
River Or Stream |
TR-BEAVER RIVER |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
32 |
Nid Storage |
160 |
Structural Height |
32 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
32 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Beaver River At Beaver
|
0cfs |
Crooked C Nr Englewood
|
7cfs |
Cimarron River Near Forgan
|
20cfs |
Wolf Ck At Lipscomb
|
1cfs |
Cimarron R Near Buttermilk
|
44cfs |
Bluff Creek Nr Buttermilk
|
39cfs |
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.
Barby No 5