South Fork Diversion Dam

South Fork Diversion Dam is a concrete dam located in Jackson County, Oregon, built in 1932. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About South Fork Diversion Dam

The primary purpose of South Fork Diversion Dam is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Pacificorp (private). It impounds the South Fork Rogue River.

The dam stands 33 feet tall and stretches 172 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 18 acre-feet, and collects water from a drainage area of 79 square miles. Completed in 1932, the structure is well-established, with more than 75 years of service.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/25/2017.

At 33 feet, this dam is taller than 78% of dams nationwide.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateOregon
CountyJackson
Nearest CityNone
River/StreamSouth Fork Rogue River
Coordinates42.70620, -122.38858

Physical Characteristics

Dam TypeConcrete
NID Height33 ft
Dam Height25 ft
Dam Length172 ft
Year Completed1932 (94 years old)

Storage & Hydraulics

NID Storage18 acre-ft
Max Storage18 acre-ft
Normal Storage5 acre-ft
Surface Area1 acres
Drainage Area79 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerPacifiCorp
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection07/25/2017
Emergency Action PlanNot Required

Identifiers

NID IDOR00716
Federal IDOR00716
More InfoState Dam Safety Program

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