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 |
|---|---|---|
|
2021 |
May 28 |
Nov 9 |
|
2020 |
June 4 |
Nov 12 |
|
2019 |
May 23 |
Oct. 19 - temporary |
|
2018 |
June 11 |
Nov. 20 |
|
2017 |
June 9 |
Nov. 7 |
|
2016 |
May 17 |
Nov. 29 |
|
2015 |
April 2 |
Nov. 16 |
|
2014 |
May 23 |
Nov. 24 |
|
2013 |
May 17 |
Dec. 2 |
|
2012 |
May 25 |
Nov. 12 |
|
2011 |
June 23 |
Nov. 11 |
|
2010 |
May 28 |
Nov. 16 |
|
2009 |
May 22 |
Nov. 8 |
|
2008 |
June 5 |
Dec. 15 |
|
2007 |
May 24 |
Nov. 29 |
|
2006 |
May 25 |
Nov. 12 |
|
2005 |
Apr. 28 |
Oct. 25 |
|
2004 |
May 6 |
Dec. 7 |
|
2003 |
May 14 |
Nov. 17 |
|
2002 |
May 31 |
Dec. 10 |
|
2001 |
May 10 |
Nov. 26 |
|
2000 |
May 18 |
Nov. 27 |
|
1999 |
Jul. 1 |
Nov. 30 |
|
1998 |
May 20 |
Nov. 20 |
|
1997 |
Jun. 12 |
Nov. 19 |
|
1996 |
May 23 |
Nov. 16 |
|
1995 |
Jun. 7 |
Nov. 7 |
|
1994 |
May 27 * |
Oct. 31 |
|
1993 |
May 28 * |
Nov. 18 ** |
|
1992 |
May 8 |
Nov. 21 |
|
1991 |
May 24 |
Nov. 19 |
|
1990 |
May 17 |
Nov. 21 |
|
1989 |
May 26 |
Nov. 28 |
|
1988 |
May 12 |
Nov. 10 |
|
1987 |
May 13 |
Nov. 23 |
|
1986 |
May 22 |
Nov. 18 |
|
1985 |
May 22 |
Nov. 9 |
|
1984 |
May 24 |
Nov. 5 |
|
1983 |
May 25 |
Nov. 14 |
|
1982 |
Jun. 10 |
Nov. 16 |
|
1981 |
Apr. 29 |
Nov. 20 |
|
1980 |
May 21 |
Nov. 17 |
|
1979 |
May 25 |
Nov. 24 |
|
1978 |
May 25 |
Nov. 18 |
|
1977 |
N/A |
Nov. 15 |
|
1976 |
Jun. 11 |
None |
|
1975 |
Jun. 13 |
Oct. 28 |
|
1974 |
Jul. 12 |
Dec. 18 |
|
1973 |
Apr. 5 |
Nov. 9 |
|
1972 |
Jun. 23 |
Nov. 9 |
|
1971 |
Jun. 18 |
Nov. 1 |
|
1970 |
May 29 |
Nov. 11 |
|
1969 |
May 27 |
Dec. 10 |
|
1968 |
May 10 |
Nov. 22 |
|
1967 |
Jun. 3 |
Nov. 28 |
|
1966 |
May 26 |
Nov. 16 |
|
1965 |
May 28 |
Nov. 24 |
|
1964 |
Jun. 20 |
Nov. 22 |
|
1963 |
May 28 |
Nov. 7 |
|
1962 |
May 20 |
Nov. 25 |
|
1961 |
Jun. 6 |
Nov. 11 |
|
1960 |
May 25 |
Nov. 15 |
|
1959 |
May 22 |
Nov. 19 |
|
1958 |
May 24 |
Nov. 9 |
|
1957 |
May 10 |
Nov. 27 |
|
1956 |
Jun. 13 |
Nov. 16 |
|
1955 |
Jun. 6 |
Nov. 17 |
|
1954 |
Jun. 19 |
Dec. 5 |
|
1953 |
May 30 |
Nov. 21 |
|
1952 |
May 16 |
Dec. 4 |
|
1951 |
May 19 |
Nov. 11 |
|
1950 |
Jun. 7 |
Nov. 15 |
|
1949 |
May 27 |
Dec. 9 |
|
1948 |
Jun. 12 |
Nov. 3 |
|
1947 |
May 15 |
Nov. 5 |
|
1946 |
Jun. 27 |
Nov. 1 |
|
1945 |
Jun. 2 |
Nov. 9 |
|
1944 |
May 20 |
Nov. 23 |
|
1943 |
Jun. 18 |
Nov. 4 |
|
1942 |
May 3 |
Nov. 3 |
|
1941 |
Apr. 15 |
Dec. 15 |
|
1940 |
May 15 |
Nov. 8 |
|
1939 |
May 7 |
Dec. 15 |
|
1938 |
May 28 |
Nov. 16 |
|
1937 |
Jun. 1 |
Nov. 12 |
|
1936 |
May 23 |
Dec. 8 |
|
1935 |
May 21 |
Nov. 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 |
|---|---|---|
|
2021 |
May 28 |
Nov 9 |
|
2020 |
June 4 |
Nov. 12 |
|
2019 |
May 23 - reopened - Oct. 20 |
Oct. 19 - temporary |
|
2018 |
June 11 |
Nov. 20 |
|
2017 |
May 19 |
Nov. 7 |
|
2016 |
April 29 |
Nov. 29 |
|
2015 |
April 2 |
Nov. 16 |
|
2014 |
May 16 |
Nov. 24 |
|
2013 |
May 3 |
Nov. 20 |
|
2012 |
May 8 |
Nov. 12 |
|
2011 |
May 26 |
Nov. 11 |
|
2010 |
April 30 |
Nov. 16 |
|
2009 |
May 15 |
Nov. 8 |
|
2008 |
May 23 |
Dec. 15 |
|
2007 |
Sept. 29 # |
Nov. 29 |
|
2006 |
Jun. 30 |
Nov. 12 |
|
2005 |
Apr. 21 |
Nov. 4 |
|
2004 |
Apr. 30 |
Dec. 6 |
|
2003 |
Apr. 18 |
Nov. 18 |
|
2002 |
May 6 |
Dec. 12 |
|
2001 |
Apr. 20 |
Nov. 26 |
|
2000 |
Apr. 20 |
Nov. 28 |
|
1999 |
Jun. 3 |
Nov. 30 |
|
1998 |
Apr. 25 |
Nov. 23 |
|
1997 |
May 23 |
Nov. 20 |
|
1996 |
Jun. 21# |
Oct. 7## |
|
1995 |
May 24 |
Dec. 4 |
|
1994 |
May 23 * |
Oct. 31 |
|
1993 |
May 28 * |
Nov. 18 |
|
1992 |
Mar. 30 |
Nov. 30 |
|
1991 |
May 3 |
Dec. 7 |
|
1990 |
May 17 |
Nov. 24 |
|
1989 |
May 1 |
Jan. 4, 1990 |
|
1988 |
Apr. 15 |
Nov. 17 |
|
1987 |
Apr. 3 |
Nov. 30 |
|
1986 |
Apr. 10 |
Nov. 28 |
|
1985 |
Apr. 19 |
Nov. 17 |
|
1984 |
Apr. 6 |
Nov. 16 |
|
1983 |
Apr. 7 |
Nov. 24 |
|
1982 |
Apr. 30 |
Dec. 2 |
|
1981 |
Mar. 18 |
Nov. 30 |
|
1980 |
Apr. 21 |
Dec. 4 |
|
1979 |
Apr. 23 |
Jan. 8, 1980 |
|
1978 |
Apr. 3 |
Dec. 10 |
|
1977 |
N/A |
Dec. 2 |
|
1976 |
May 14 |
None |
|
1975 |
Apr. 29 |
Nov. 30 |
|
1974 |
May 29 |
Dec. 30 |
|
1973 |
Not available |
Dec. 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 |
|---|---|---|
|
2021 |
May 5 |
Nov 15 |
|
2020 |
May 12 |
Nov. 16 |
|
2019 |
April 18 |
Dec. 11 |
|
2018 |
May 11 |
Nov. 28 |
|
2017 |
May 16 |
Nov. 10 |
|
2016 |
April 22 |
Nov. 18 |
|
2015 |
April 3 |
Nov. 12 |
|
2014 |
May 8 |
Nov. 24 |
|
2013 |
April 16 |
Dec. 3 |
|
2012 |
May 10 |
Nov. 20 |
|
2011 |
May 25 |
Nov. 21 |
|
2010 |
April 16 |
Dec. 1 |
|
2009 |
April 24 |
Nov. 17 |
|
2008 |
May 1 |
Dec. 15 |
|
2007 |
April 26 |
Dec. 4 |
|
2006 |
May 1 |
Nov. 13 |
|
2005 |
Mar. 10 |
Nov. 3 |
|
2004 |
Apr. 8 |
Dec. 13 |
|
2003 |
Apr. 14 |
Oct 17 |
|
2002 |
May 7 |
Dec. 17 |
|
2001 |
Mar. 22 |
Nov. 19 |
|
2000 |
Mar. 30 |
Nov. 28 |
|
1999 |
May 5 |
Dec. 6 |
|
1998 |
Apr. 2 |
Nov. 20 |
|
1997 |
May 7 |
Dec. 16 |
|
1996 |
Apr. 24 |
Nov. 19 |
|
1995 |
Apr. 28 |
Nov. 5 |
|
1994 |
Apr. 7 |
Oct. 31 |
|
1993 |
Mar. 24 |
Dec. 8 |
|
1992 |
Apr. 9 |
Dec. 8 |
|
1991 |
May 2 |
Nov. 17 |
|
1990 |
Apr. 18 |
Nov. 12 |
|
1989 |
Apr. 21 |
Jan. 3, 1990 |
|
1988 |
Apr. 20 |
Nov. 19 |
|
1987 |
Apr. 15 |
Dec. 1 |
|
1986 |
Apr. 11 |
Nov. 26 |
|
1985 |
Apr. 12 |
Nov. 15 |
|
1984 |
Apr. 4 |
Nov. 2 |
|
1983 |
Apr. 20 |
Nov. 24 |
|
1982 |
May 6 |
Dec. 2 |
|
1981 |
Apr. 24 |
Nov. 30 |
|
1980 |
Apr. 18 |
Nov. 27 |
|
1979 |
Apr. 10 |
Dec. 15 |
|
1978 |
Apr. 21 |
Dec. 11 |
|
1977 |
N/A |
Nov. 23 |
|
1976 |
May 21 |
None |
|
1975 |
May 16 |
Nov. 24 |
|
1974 |
Jun. 14 |
Nov. 21 |
|
1973 |
Apr. 27 |
Nov. 21 |
|
1972 |
Sept. 2 |
Nov. 26 |
* Due to Construction
*** Temporary Closure Date
# Due to Winter Storm Damage
## For Repair of Winter Storm Damage
8,683 animals crossed the Snoqualmie Pass East Project area
as recorded by WSDOT and partners in 2020 and 2021.
46% increase in Amtrak Cascades ridership to 251,000 passengers
in 2021 compared to 172,000 in 2020.
Nine wetland and stream mitigation sites across 32.7 acres added
to our monitoring program in 2021 to help offset climate change impacts.