Sherrill Rufus No 1 Reservoir Report
Nearby: Overton Russell Carter Floyd
Last Updated: January 2, 2026
Sherrill Rufus No 1 is a privately owned dam located in Vinson, Oklahoma, along the TR-Grape Creek.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1957, this earth dam stands at a height of 28 feet and has a hydraulic height of 25 feet. With a storage capacity of 50 acre-feet, it serves a primary purpose of "Other" and is classified as a low hazard potential structure by the state regulatory agency, OWRB.
Despite its low hazard potential, Sherrill Rufus No 1 is considered to have a very high risk assessment, with a risk level of 1. The dam has one valve outlet gate and a controlled spillway with a width of 1 foot. The last inspection of the dam was conducted in November 2010, with a recommended inspection frequency of every 5 years. While the condition assessment is currently rated as "Not Rated", the dam is deemed to be in satisfactory operating condition.
Located in Harmon County, Oklahoma, Sherrill Rufus No 1 plays a crucial role in water resource management in the region. As climate change continues to impact water availability and quality, the maintenance and regulation of dams like Sherrill Rufus No 1 are essential for mitigating potential risks and ensuring the safety and sustainability of water resources for future generations.
Year Completed |
1957 |
Dam Length |
298 |
Dam Height |
28 |
River Or Stream |
TR-GRAPE CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Hydraulic Height |
25 |
Nid Storage |
50 |
Structural Height |
28 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
28 |
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.
Sherrill Rufus No 1