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Merwin Dam

Merwin Dam (also known as Ariel Dam[3]) is a concrete arch gravity-type hydroelectric dam on the Lewis River, in the U.S. state of Washington. It is located on the border between Cowlitz County and Clark County. Its reservoir is called Lake Merwin.

Merwin Dam
LocationClark / Cowlitz counties, Washington, USA
Coordinates45°57′24″N 122°33′18″W / 45.95667°N 122.55500°W / 45.95667; -122.55500
Construction began1929
Opening date1931[1]
Operator(s)Pacificorp[1]
Dam and spillways
ImpoundsLewis River
Height313 feet (95 m)
Length1,250 feet (381 m)[1]
Reservoir
CreatesLake Merwin
Total capacity422,000 acre-feet (0.521 km3)[1]
Catchment area731 square miles (1,890 km2)[1]
Surface area3,921 acres (15.9 km2)[1]
Power Station
Commission date1931/1949/1958
Turbines3 x 45 MW Francis-type, 1 x 1 MW[2]
Installed capacity136 MW
Annual generation511,534 MWh

On November 24, 1971, the dam was fully lit allegedly giving the skyjacker D. B. Cooper an identifiable landmark when he jumped from a Boeing 727 passenger liner. Cooper had ransomed 200,000 dollars from Federal Authorities after holding hostage the 727 and its passengers in Seattle.[4]

References edit

  1. ^ a b c d e f Merwin Dam 2011-07-16 at the Wayback Machine, NPDP Dam Directory
  2. ^ (PDF). Final License Application. PacifiCorp. Archived from the original (PDF) on 7 August 2012. Retrieved 10 May 2012.
  3. ^
  4. ^ In Search Of..."D. B. Cooper" hosted by Leonard Nimoy, produced by Alan Landsburg c. 1979


merwin, also, known, ariel, concrete, arch, gravity, type, hydroelectric, lewis, river, state, washington, located, border, between, cowlitz, county, clark, county, reservoir, called, lake, merwin, locationclark, cowlitz, counties, washington, usacoordinates45. Merwin Dam also known as Ariel Dam 3 is a concrete arch gravity type hydroelectric dam on the Lewis River in the U S state of Washington It is located on the border between Cowlitz County and Clark County Its reservoir is called Lake Merwin Merwin DamLocationClark Cowlitz counties Washington USACoordinates45 57 24 N 122 33 18 W 45 95667 N 122 55500 W 45 95667 122 55500Construction began1929Opening date1931 1 Operator s Pacificorp 1 Dam and spillwaysImpoundsLewis RiverHeight313 feet 95 m Length1 250 feet 381 m 1 ReservoirCreatesLake MerwinTotal capacity422 000 acre feet 0 521 km3 1 Catchment area731 square miles 1 890 km2 1 Surface area3 921 acres 15 9 km2 1 Power StationCommission date1931 1949 1958Turbines3 x 45 MW Francis type 1 x 1 MW 2 Installed capacity136 MWAnnual generation511 534 MWhOn November 24 1971 the dam was fully lit allegedly giving the skyjacker D B Cooper an identifiable landmark when he jumped from a Boeing 727 passenger liner Cooper had ransomed 200 000 dollars from Federal Authorities after holding hostage the 727 and its passengers in Seattle 4 References edit a b c d e f Merwin Dam Archived 2011 07 16 at the Wayback Machine NPDP Dam Directory Merwin Hydroelectric Project PDF Final License Application PacifiCorp Archived from the original PDF on 7 August 2012 Retrieved 10 May 2012 U S Geological Survey Geographic Names Information System Merwin Dam In Search Of D B Cooper hosted by Leonard Nimoy produced by Alan Landsburg c 1979 nbsp United States portal nbsp Water portal nbsp Renewable energy portal nbsp This article about a building or structure in the U S state of Washington is a stub You can help Wikipedia by expanding it vte This article about a United States power station is a stub You can help Wikipedia by expanding it vte nbsp This article about a hydroelectric power plant is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Merwin Dam amp oldid 1139022234, wikipedia, wiki, book, books, library,

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