Woolfolk Reservoir

Woolfolk Reservoir is an earth dam located in Jackson County, Oregon, built in 1955. It carries a Significant hazard potential classification.

About Woolfolk Reservoir

The primary purpose of Woolfolk Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Ira V. Woolfolk (private). It impounds the School House Creek near Brownsboro.

The dam stands 49 feet tall and stretches 1,180 feet across, creates a reservoir covering 34 acres, has a maximum storage capacity of 700 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1955, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. The most recent inspection on record was 12/30/2020.

At 49 feet, this dam is taller than 92% of dams nationwide.

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Significant HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateOregon
CountyJackson
Nearest CityBrownsboro
River/StreamSchool House Creek
Coordinates42.47778, -122.69753

Physical Characteristics

Dam TypeEarth
NID Height49 ft
Dam Height47 ft
Dam Length1,180 ft
Year Completed1955 (71 years old)

Storage & Hydraulics

NID Storage700 acre-ft
Max Storage700 acre-ft
Normal Storage480 acre-ft
Surface Area34 acres
Drainage Area1 sq mi
Max Discharge1,862 cfs

Ownership & Safety

PurposeIrrigation
OwnerIRA V. WOOLFOLK
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Last Inspection12/30/2020
Emergency Action PlanNot Required

Identifiers

NID IDOR00295
Federal IDOR00295
More InfoState Dam Safety Program

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