October 17th and 18th (Monday and Tuesday) a design team will be inspecting the Wawona Tunnel at night, from 7:00 pm to 3:00 am, with single lane traffic control and up to 15-minute delays. October 19th and 20th (Wednesday and Thursday) a design team will be inspecting the 3-tunnels on the Big Oak Flat Road at night, from 7:00 pm to 3:00 am, with single lane traffic control and up to 15-minute delays.