SR 203 - Loutsis Creek - Fish Passage - Detour map

A map showing the detour for work at Loutsis Creek near Duvall.

For about six weeks starting July 26, 2020, SR 203 south of Duvall will be closed to through traffic while we replace a small culvert under the highway at Loutsis Creek. The detour will take travelers in both directions on Northeast 124th Street, West Snoqualmie Valley Road Northeast and Northeast Woodinville-Duvall Road, adding about two miles to a trip.. People will have local access up to the work zone in both directions, but no one - including pedestrians and bicyclists - will be allowed to travel through the work zone.