 For those planning to take I-17 south this week, expect overnight closures of the southbound lane at Bumblebee Road. Due to major bridge work today through Thursday, full southbound closures will occur from 9 p.m. to 5 a.m., with work finishing up the morning of Friday. The detour route will follow Bumblebee Road around the bridge work and reconnect to I-17 about three-quarters of a mile from the Bumblebee Road exit.