If you can, avoid using the southbound leg of the Hollywood Freeway through downtown until Monday. The leg from the four-level interchange (where the 101 and 110 cross) to Mission Road will be squeezed down to two lanes during daylight hours and one lane at night. Southbound lanes will be closed entirely on Sunday from 1 am to at least 8 am. Caltrans is realigning the freeway and opening a new onramp at Alameda.