Chinook Water District Dam

Chinook Water District Dam is an earth dam located in Pacific County, Washington, built in 1991. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspection07/09/2001
Height26 ft
Built199135 years ago

Dam profile

NID height · 26 ft
26 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

26 ft tall and 100 ft long, taller than 55% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About Chinook Water District Dam

The primary purpose of Chinook Water District Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Chinook Water Dist (public utility). It impounds the Freshwater Creek.

The dam stands 26 feet tall and stretches 100 feet across, creates a reservoir covering 27 acres, has a maximum storage capacity of 32 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1991, the structure is 35 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 07/09/2001. That was over 25 years ago.

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Location

StateWashington
CountyPacific
River/StreamFreshwater Creek
Coordinates46.28766, -123.92375

Physical Characteristics

Dam TypeEarth
NID Height26 ft
Dam Length100 ft
Year Completed1991 (35 years old)

Storage & Hydraulics

NID Storage32 acre-ft
Max Storage32 acre-ft
Normal Storage27 acre-ft
Surface Area27 acres
Drainage Area0 sq mi
Max Discharge150 cfs

Ownership & Safety

PurposeWater Supply
OwnerChinook Water Dist
Owner TypePublic Utility
Hazard ClassificationLow
Condition AssessmentNot assessed
Last Inspection07/09/2001
Emergency Action PlanNot Required

Identifiers

NID IDWA01707
Federal IDWA01707
More InfoState Dam Safety Program