Sawyer Wa Reservoir Report
Nearby: Mishler Dr Donald Sonrise Farms Lake
Last Updated: December 5, 2025
Sawyer Wa is a privately owned dam located in Okmulgee, Oklahoma, near the city of Hectorville.
°F
°F
mph
Wind
%
Humidity
Summary
Built in 1965, this earth dam stands at a height of 30 feet and has a length of 640 feet, with a maximum storage capacity of 200 acre-feet. It serves as a control structure on TR-Eagle Creek, with a spillway width of 1 foot and a maximum discharge capacity of 920 cubic feet per second. Despite its low hazard potential, Sawyer Wa is classified as having a very high risk due to its condition assessment not being rated.
The dam is regulated by the Oklahoma Water Resources Board (OWRB) and is subject to state permitting, inspection, and enforcement. While it is primarily used for purposes other than flood control or water supply, Sawyer Wa plays a crucial role in managing water resources in the region. With its valve outlet gate and controlled spillway, the dam ensures the safety and stability of the surrounding area, despite being categorized as having a high risk level.
For water resource and climate enthusiasts, Sawyer Wa represents an important infrastructure in the Tulsa District, providing valuable insights into dam construction, maintenance, and risk management. Its location on TR-Eagle Creek and its function as a water control structure highlight the interconnectedness of water resources and environmental conservation efforts. As a privately owned dam with state regulation, Sawyer Wa serves as a case study for understanding the complexities of water resource management and the need for sustainable practices in the face of climate change challenges.
Year Completed |
1965 |
Dam Length |
640 |
Dam Height |
30 |
River Or Stream |
TR-EAGLE CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
30 |
Nid Storage |
200 |
Structural Height |
30 |
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.
Sawyer Wa