Terminal Island Freeway / Ocean Boulevard / Vincent Thomas Bridge / Seaside Freeway
Runs from PCH (State 1) to the 110 in San Pedro over Terminal Island
State 47 is mostly an industrial and port access roadway. It crosses onto Terminal Island in two places, one near San Pedro and the other heading north toward Wilmington. The Terminal Island Freeway portion was originally built in 1947 by the US Navy to upgrade access to the Port of Los Angeles / Long Beach and the Naval Shipyard. Later additions, such as the Vincent Thomas Bridge, were added in the 1960’s.
Alameda St and Henry Ford Avenue are signed as Route 47 between the Terminal Island Freeway and State 91, but it is unclear if this is official Caltrans signage.
It’s interesting that there’s one stoplight at Navy Way that has never been eliminated. From there, it’s freeway in both directions.