Davison No.1 Reservoir Report
Nearby: Richardson Davison No.2
Last Updated: December 31, 2025
Davison No.1 is a privately owned earth dam located in Ellis, Oklahoma, designed by the USDA NRCS and completed in 1960 for the primary purpose of flood risk reduction along the TR-WEST HACKBERRY CR.
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Summary
This dam stands at a height of 34 feet with a hydraulic height of 30 feet and a length of 200 feet, providing a maximum storage capacity of 80 acre-feet. With a controlled spillway and a low hazard potential, Davison No.1 plays a crucial role in managing flood risk in the area.
Managed by the Oklahoma Water Resources Board, Davison No.1 is subject to state regulation, inspection, and enforcement to ensure its structural integrity and operational efficiency. Despite being classified as 'Not Rated' for its condition assessment, the dam has a very high risk ranking of 1, emphasizing the importance of ongoing monitoring and maintenance to mitigate potential hazards. With a single valve outlet gate and a history of periodic inspections, Davison No.1 remains a key component of the region's water resource infrastructure.
For water resource and climate enthusiasts, Davison No.1 serves as a fascinating example of engineering ingenuity in managing flood risk in Oklahoma. Its stone core and soil foundation, along with a history of federal funding and oversight from the Natural Resources Conservation Service, highlight the collaborative efforts involved in maintaining critical infrastructure. As climate change continues to impact water resources, dams like Davison No.1 play a vital role in safeguarding communities and ecosystems from the threats of flooding, underscoring the importance of sustainable water management practices in a changing climate.
Year Completed |
1960 |
Dam Length |
200 |
Dam Height |
34 |
River Or Stream |
TR-WEST HACKBERRY CR |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Nid Storage |
80 |
Structural Height |
34 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Seasonal Comparison
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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.
Davison No.1