Mountain Pass Closure And Opening Dates | WSDOT

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Mountain pass closure and opening dates

Historic opening and closing dates for Chinook, Cayuse and North Cascades passes

Chinook Pass SR 410

Year

Opened

Closed

2025May 23Oct. 24
2024May 31Oct. 31
2023 May 26Nov. 10
2022May 26Oct. 27
2021May 28Nov. 9
2020June 4Nov. 12
2019May 23reopened -- Oct. 25Oct. 19 - temporaryNov. 21
2018June 11Nov. 20
2017June 9Nov. 7
2016May 17Nov. 29
2015April 2Nov. 16
2014May 23Nov. 24
2013May 17Dec. 2
2012May 25Nov. 12
2011June 23Nov. 11
2010May 28Nov. 16
2009May 22Nov. 8
2008June 5Dec. 15
2007May 24Nov. 29
2006May 25Nov. 12
2005Apr. 28Oct. 25
2004May 6Dec. 7
2003May 14Nov. 17
2002May 31Dec. 10
2001May 10Nov. 26
2000May 18Nov. 27
1999Jul. 1Nov. 30
1998May 20Nov. 20
1997Jun. 12Nov. 19
1996May 23Nov. 16
1995Jun. 7Nov. 7
1994May 27 *Oct. 31
1993May 28 *Nov. 18 **
1992May 8Nov. 21
1991May 24Nov. 19
1990May 17Nov. 21
1989May 26Nov. 28
1988May 12Nov. 10
1987May 13Nov. 23
1986May 22Nov. 18
1985May 22Nov. 9
1984May 24Nov. 5
1983May 25Nov. 14
1982Jun. 10Nov. 16
1981Apr. 29Nov. 20
1980May 21Nov. 17
1979May 25Nov. 24
1978May 25Nov. 18
1977N/ANov. 15
1976Jun. 11None
1975Jun. 13Oct. 28
1974Jul. 12Dec. 18
1973Apr. 5Nov. 9
1972Jun. 23Nov. 9
1971Jun. 18Nov. 1
1970May 29Nov. 11
1969May 27Dec. 10
1968May 10Nov. 22
1967Jun. 3Nov. 28
1966May 26Nov. 16
1965May 28Nov. 24
1964Jun. 20Nov. 22
1963May 28Nov. 7
1962May 20Nov. 25
1961Jun. 6Nov. 11
1960May 25Nov. 15
1959May 22Nov. 19
1958May 24Nov. 9
1957May 10Nov. 27
1956Jun. 13Nov. 16
1955Jun. 6Nov. 17
1954Jun. 19Dec. 5
1953May 30Nov. 21
1952May 16Dec. 4
1951May 19Nov. 11
1950Jun. 7Nov. 15
1949May 27Dec. 9
1948Jun. 12Nov. 3
1947May 15Nov. 5
1946Jun. 27Nov. 1
1945Jun. 2Nov. 9
1944May 20Nov. 23
1943Jun. 18Nov. 4
1942May 3Nov. 3
1941Apr. 15Dec. 15
1940May 15Nov. 8
1939May 7Dec. 15
1938May 28Nov. 16
1937Jun. 1Nov. 12
1936May 23Dec. 8
1935May 21Nov. 15

* Due to Construction

** SR 410 North of Chinook Pass Closed 11/1/93 Due to Construction

*** Temporary Closure Date

Cayuse Pass SR 123

Year

Opened

Closed

2025May 23Oct. 24
2024May 24Oct. 31
2023May 26Nov. 10
2022May 27Oct. 25
2021May 28Nov 9
2020June 4Nov. 12
2019May 23 - reopened - Oct. 20Oct. 19 - temporaryNov. 21
2018June 11Nov. 20
2017May 19Nov. 7
2016April 29Nov. 29
2015April 2Nov. 16
2014May 16Nov. 24
2013May 3Nov. 20
2012May 8Nov. 12
2011May 26Nov. 11
2010April 30Nov. 16
2009May 15Nov. 8
2008May 23Dec. 15
2007Sept. 29 #Nov. 29
2006Jun. 30Nov. 12
2005Apr. 21Nov. 4
2004Apr. 30Dec. 6
2003Apr. 18Nov. 18
2002May 6Dec. 12
2001Apr. 20Nov. 26
2000Apr. 20Nov. 28
1999Jun. 3Nov. 30
1998Apr. 25Nov. 23
1997May 23Nov. 20
1996Jun. 21#Oct. 7##
1995May 24Dec. 4
1994May 23 *Oct. 31
1993May 28 *Nov. 18
1992Mar. 30Nov. 30
1991May 3Dec. 7
1990May 17Nov. 24
1989May 1Jan. 4, 1990
1988Apr. 15Nov. 17
1987Apr. 3Nov. 30
1986Apr. 10Nov. 28
1985Apr. 19Nov. 17
1984Apr. 6Nov. 16
1983Apr. 7Nov. 24
1982Apr. 30Dec. 2
1981Mar. 18Nov. 30
1980Apr. 21Dec. 4
1979Apr. 23Jan. 8, 1980
1978Apr. 3Dec. 10
1977N/ADec. 2
1976May 14None
1975Apr. 29Nov. 30
1974May 29Dec. 30
1973Not availableDec. 12

* Due to Construction

*** Temporary Closure Date

# Due to Winter Storm Damage

## For Repair of Winter Storm Damage

North Cascades SR 20

Year

Opened

Closed

2025April 22Dec. 4
2024April 19Nov. 18
2023May 11Nov. 30
2022May 10Nov. 3
2021May 5Nov 15
2020May 12Nov. 16
2019April 18Dec. 11
2018May 11Nov. 28
2017May 16Nov. 10
2016April 22Nov. 18
2015April 3Nov. 12
2014May 8Nov. 24
2013April 16Dec. 3
2012May 10Nov. 20
2011May 25Nov. 21
2010April 16Dec. 1
2009April 24Nov. 17
2008May 1Dec. 15
2007April 26Dec. 4
2006May 1Nov. 13
2005Mar. 10Nov. 3
2004Apr. 8Dec. 13
2003Apr. 14Oct 17
2002May 7Dec. 17
2001Mar. 22Nov. 19
2000Mar. 30Nov. 28
1999May 5Dec. 6
1998Apr. 2Nov. 20
1997May 7Dec. 16
1996Apr. 24Nov. 19
1995Apr. 28Nov. 5
1994Apr. 7Oct. 31
1993Mar. 24Dec. 8
1992Apr. 9Dec. 8
1991May 2Nov. 17
1990Apr. 18Nov. 12
1989Apr. 21Jan. 3, 1990
1988Apr. 20Nov. 19
1987Apr. 15Dec. 1
1986Apr. 11Nov. 26
1985Apr. 12Nov. 15
1984Apr. 4Nov. 2
1983Apr. 20Nov. 24
1982May 6Dec. 2
1981Apr. 24Nov. 30
1980Apr. 18Nov. 27
1979Apr. 10Dec. 15
1978Apr. 21Dec. 11
1977N/ANov. 23
1976May 21None
1975May 16Nov. 24
1974Jun. 14Nov. 21
1973Apr. 27Nov. 21
1972Sept. 2Nov. 26

* Due to Construction

*** Temporary Closure Date

# Due to Winter Storm Damage

## For Repair of Winter Storm Damage

Sections in Roads & bridges

  • Mountain passes
  • Toll roads, bridges & tunnels
  • Border crossings
  • Hood Canal Bridge
  • Rest Areas
  • Mountain pass closure and opening dates
  • Park and rides
  • Interstates & state routes
  • Movable bridges on state routes
  • HOV lanes
  • Express lanes
  • Part-time shoulders

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