Woolfolk Reservoir Reservoir Report
Nearby: Stanley, Charles W. Reservoir Owen
Last Updated: December 13, 2025
Woolfolk Reservoir, located in Brownsboro, Oregon, is a privately owned earth dam constructed in 1955 primarily for irrigation purposes.
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Summary
Situated on School House Creek, this reservoir has a storage capacity of 700 acre-feet, with a normal storage level of 480 acre-feet and a surface area of 34 acres. The dam stands at 47 feet in height, with a hydraulic height of 45 feet and a structural height of 49 feet.
With a significant hazard potential, Woolfolk Reservoir is regulated by the Oregon Water Resources Department and undergoes regular inspections, with the last one conducted in December 2020. Its outlet gates consist of a slide (sluice gate), and the maximum discharge capacity reaches 1862 cubic feet per second. The reservoir serves as a vital water resource for the surrounding area, supporting agricultural practices and contributing to the local ecosystem's sustainability.
Enthusiasts of water resources and climate will find Woolfolk Reservoir to be a crucial component of the region's water management infrastructure. As a key source of irrigation water, this reservoir plays a vital role in supporting agricultural activities in Jackson County, Oregon. With its regulated status and regular inspections, Woolfolk Reservoir demonstrates a commitment to safety and efficiency in water resource management, ensuring sustainable water usage for the community and surrounding environment.
Year Completed |
1955 |
Dam Length |
1180 |
Dam Height |
47 |
River Or Stream |
SCHOOL HOUSE CREEK |
Primary Dam Type |
Earth |
Surface Area |
34 |
Hydraulic Height |
45 |
Drainage Area |
1.3 |
Nid Storage |
700 |
Structural Height |
49 |
Outlet Gates |
Slide (sluice gate) |
Hazard Potential |
Significant |
Nid Height |
49 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Rogue River At Dodge Bridge
|
1270cfs |
Big Butte Creek Near Mcleod
|
65cfs |
Rogue River Near Mcleod
|
1210cfs |
Rogue R At Cole M Rivers F Hatchery Nr Mcleod
|
930cfs |
Bear Creek At Medford
|
32cfs |
Elk Creek Near Trail
|
31cfs |
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.
Woolfolk Reservoir