Look in the Trail Status section of the website (under the Planning Info tab) for current information. We keep the construction start dates, closures, etc as current as possible, but weather and the whims of contractors can make this difficult. The trail is owned by the local jurisdiction and they manage construction and major repairs. We have 9 major owners (3 cities, 2 counties, 2 tribes, state and national parks) and we are trying to train them to set construction windows in advance, define detours, post on trail at the detour point, etc. They are getting better at it but we have a ways to go. For a double check on exact closure dates before a major trip, use the "contact us" button on each web page.