2.39K viewsApril 18, 2022 0 wapiti816 April 18, 2022 0 Comments When does Chinook pass open? 1 Answer ActiveVotedNewestOldest 0 wapiti816 Posted April 18, 2022 0 Comments Chinook Pass SR 410 typically opens around Memorial day every year. Department of Transportation workers work diligently to open the pass when it is safe to do so. Login
