I'm not sure when 16/34 closed for good. The back of the sectional in 1957 had this note:
The 1967 sectional still depicted 16/34, and the airport directory on the back said LAX had 5 runways. 8L/26R hadn't been built yet, so that had to be 8/26, 7R/25L, 7L/25R, the small GA runway south of...