If you’re planning on traveling on U.S. 301 this weekend, you may have to add some additional time to your trip. The Florida Department of Transportation is shutting down U.S. 301 in both directions just south of State Road 100 in Starke. Traffic will be detoured beginning at 7 p.m. tomorrow night to allow work crews to replace a railroad crossing. Gina Busscher, the public information officer with the Florida Department of Transportation says drivers should budget about an extra half-hour into their trip time. She adds that a number of different detours will be available to drivers and signs will be posted to let people know where to go. U.S. 301 is expected to reopen by 7 p.m. Sunday night. Busscher describes what detour will be in place.