Southbound Highway 101 will close Thursday night at Central Avenue in Camarillo for routine maintenance, Caltrans officials said.All southbound lanes will be closed from 10 p.m. Thursday to 4 a.m. Friday, and detour signs will be in place, according to Caltrans.Caltrans crews and engineers will be conducting routine maintenance and inspection of the Central Avenue bridge, officials said.Delays should be minor, and California Highway Patrol officers will be in the area to assist.