Route 43/Route 171 Roundabout Construction Updated for week of May 26 Posted on May 23, 2014 by KOAM TV 7 Due to Memorial Day holiday, no work will be done before 9 a.m., Tuesday, May 27. Widening pavement along Route 171. Crews are working westbound on Route 171 from Route 43 and then will work their way back east to the intersection.