Wirth Reservoir

Wirth Reservoir is an earth dam located in Baker County, Oregon, built in 1966. It carries a Low hazard potential classification.

About Wirth Reservoir

The primary purpose of Wirth Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Mary Louise Wirth (private). It impounds the Big Creek near Keating.

The dam stands 38 feet tall and stretches 545 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 59 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1966, the structure is well into its service life at over 50 years 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. The most recent inspection on record was 04/26/2017.

At 38 feet, this dam is taller than 85% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: No

Location

StateOregon
CountyBaker
Nearest CityKeating
River/StreamBig Creek
Coordinates44.98816, -117.64485

Physical Characteristics

Dam TypeEarth
NID Height38 ft
Dam Height36 ft
Dam Length545 ft
Year Completed1966 (60 years old)

Storage & Hydraulics

NID Storage59 acre-ft
Max Storage59 acre-ft
Normal Storage59 acre-ft
Surface Area3 acres
Drainage Area0 sq mi
Max Discharge100 cfs

Ownership & Safety

PurposeIrrigation
OwnerMARY LOUISE WIRTH
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection04/26/2017
Emergency Action PlanNo

Identifiers

NID IDOR00466
Federal IDOR00466
More InfoState Dam Safety Program

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