Robertson Dam Reservoir Report
Nearby: Shotwell No 1 Shotwell No 7
Last Updated: December 19, 2025
Robertson Dam, located in Sayre, Oklahoma, on Long Creek, is a privately owned earth dam completed in 1980 with a primary purpose other than flood control or water supply.
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Summary
Managed by the Natural Resources Conservation Service, the dam stands at a height of 31 feet and has a length of 575 feet, holding a maximum storage capacity of 123 acre-feet. The dam's spillway type is controlled, with a width of 1 foot, and it is classified as having a low hazard potential.
Despite being last inspected in 2010 and not currently rated, Robertson Dam's risk assessment is very high, indicating potential safety concerns. The dam's condition assessment and emergency action plan status are unknown, raising questions about its preparedness for potential disasters. While the dam's risk management measures and inundation maps remain unclear, its location in a high-risk area underscores the importance of regular inspections and maintenance to ensure the safety of nearby communities and water resources.
Year Completed |
1980 |
Dam Length |
575 |
Dam Height |
31 |
River Or Stream |
LONG CREEK |
Primary Dam Type |
Earth |
Surface Area |
8.5 |
Drainage Area |
1.15 |
Nid Storage |
123 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Nid Height |
31 |
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.
Robertson Dam