Nearly every winter, the stretch of I-5 through the Tejon Pass and Grapevine is sometimes closed by the California Highway Patrol, generally because of the icy conditions combined with the steep grade of the pass, and the high traffic during the winter holidays. Whenever there is such a closure, traffic must either wait for it to reopen, or endure a multi-hour detour. In 2019, a gate was installed in the median of the Golden State Freeway in Castaic north of Lake Hughes Road to allow drivers to turn around when such closures occur.