Wynoochee River Project Statistics

Year completed

Dam - 1972
Powerhouse- 1993

River System

Wynoochee

Original Investment

Dam - $24 million
Powerhouse - $25 million

Type of dam

Concrete gravity & embankment

Height: above riverbed
above bedrock

175 feet
175 feet

Length

1,028 feet

Width: top
base

20 feet
146 feet

Volume of concrete in dam

92,800 cubic yards

Average flow

534 cubic feet/second

Drainage area

41 square miles

Reservoir length

4.4 miles

Miles of shoreline

13 miles

Reservoir area at maximum elevation

1,140 acres

Reservoir elevation: full
lowest allowable

800 feet
700 feet

Average annual generation

30 million kilowatt-hours

Equivalent number of Northwest homes served

2,100

Number of generators

One - 10,800 kilowatt

Installed capacity (nameplate rating)

10,800 kilowatts