News Actions Facebook Tweet Email Highway 21 road closure alert Posted at 6:06 PM, Jan 17, 2016 and last updated 2016-01-17 20:06:30-05 Highway 21 between Lowman and Stanley will close Sunday at 6 p.m due to avalanche potential. The closure will be between Grandjean Junction at milepost 93 and Banner summit at milepost 105. The road will remain closed until further notice. Scripps Only Content 2016 Sign up for the Headlines Newsletter and receive up to date information. now signed up to receive the Headlines Newsletter. Click here to manage all Newsletters Shine A Light