Jacobs Reservoir Dam

Jacobs Reservoir Dam is an earth dam located in Lake County, Oregon, built in 1938. It carries a Low hazard potential classification and has a poor condition assessment.

About Jacobs Reservoir Dam

The primary purpose of Jacobs Reservoir Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Us Fish And Wildlife Service (federal). It impounds the Guano Creek.

The dam stands 15 feet tall and stretches 395 feet across, creates a reservoir covering 126 acres, has a maximum storage capacity of 1,661 acre-feet, and collects water from a drainage area of 30 square miles. Completed in 1938, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 08/22/2018.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateOregon
CountyLake
River/StreamGuano Creek
Coordinates42.28611, -119.64972

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Height15 ft
Dam Length395 ft
Year Completed1938 (88 years old)

Storage & Hydraulics

NID Storage1,661 acre-ft
Max Storage1,661 acre-ft
Normal Storage294 acre-ft
Surface Area126 acres
Drainage Area30 sq mi
Max Discharge1,600 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFish and Wildlife Pond
OwnerUS FISH AND WILDLIFE SERVICE
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection08/22/2018
Emergency Action PlanNot Required

Identifiers

NID IDOR03850
Federal IDOR03850
More InfoState Dam Safety Program

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