Killamacue Reservoir

Killamacue Reservoir is a gravity dam located in Baker County, Oregon, built in 1908. It carries a Significant hazard potential classification.

About Killamacue Reservoir

The primary purpose of Killamacue Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Jim Ingram (private). It impounds the Killamacue Lake near Rock Creek.

The dam stands 12 feet tall and stretches 60 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 798 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1908, the structure is over a century 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 09/26/2018.

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Significant HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateOregon
CountyBaker
Nearest CityRock Creek
River/StreamKillamacue Lake
Coordinates44.87516, -118.14599

Physical Characteristics

Dam TypeGravity
NID Height12 ft
Dam Height11 ft
Dam Length60 ft
Year Completed1908 (118 years old)

Storage & Hydraulics

NID Storage798 acre-ft
Max Storage798 acre-ft
Normal Storage312 acre-ft
Surface Area16 acres
Drainage Area0 sq mi
Max Discharge660 cfs

Ownership & Safety

PurposeIrrigation
OwnerJIM INGRAM
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Last Inspection09/26/2018
Emergency Action PlanNot Required

Identifiers

NID IDOR00608
Federal IDOR00608
More InfoState Dam Safety Program

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