SPRINGDALE, UT: On Wednesday November 18, 2015 there will be short term closures, not exceeding 30 minutes, between the hours of 6:00 a.m. and 8:00 a.m. in the Zion-Mount Carmel Tunnel. Park staff will be conducting a project evaluation during this time. Traffic will revert to normal operations at 8:00 a.m. with regular traffic control for oversized vehicles.