Coleman Forebay

Coleman Forebay is an earth dam located in Shasta County, California, built in 1911. It carries a Low hazard potential classification and has a poor condition assessment.

About Coleman Forebay

The primary purpose of Coleman Forebay 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 Pacific Gas And Electric Company (private). It impounds the South Fork Battle Creek - Os near Shingletown.

The dam stands 20 feet tall and stretches 2,604 feet across, and has a maximum storage capacity of 76 acre-feet. Completed in 1911, the structure is over a century old.

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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/07/2017.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateCalifornia
CountyShasta
Nearest CityShingletown
River/StreamSouth Fork Battle Creek - Os
Coordinates40.41284, -122.11424

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length2,604 ft
Year Completed1911 (115 years old)

Storage & Hydraulics

NID Storage76 acre-ft
Max Storage76 acre-ft
Normal Storage76 acre-ft
Max Discharge500 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeHydroelectric
OwnerPacific Gas and Electric Company
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection09/07/2017
Emergency Action PlanNot Required

Identifiers

NID IDCA00392
Federal IDCA00392
More InfoState Dam Safety Program

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