 In the 1964 renumbering, the Industrial Freeway became Route 47, and the former East By-Pass became Route 241. The latter was deleted the next year, and the former was extended west from its south end on Terminal Island to San Pedro, replacing part of SR 7, which was truncated to SR 1 in Long Beach at the same time. (I-710, which later replaced SR 7, has since been re-extended to SR 47 on Terminal Island.) This extension, which had been added to the state highway system in 1949 as part of Route 231, included the 1963 Vincent Thomas Bridge. Construction on the $ 5.8 million freeway link from that bridge west to the Harbor Freeway in San Pedro — officially the Seaside Freeway, but called an extension of the Harbor Freeway by the media — began in March 1968, and it was dedicated on July 9, 1970. The two parts of SR 47 were, and still are, connected by the Los Angeles-maintained Seaside Avenue and Long Beach-maintained Ocean Boulevard. (A freeway upgrade of the latter was completed in June 2007, but traffic signals remain on the former and on the ramps connecting Ocean Boulevard with the Terminal Island Freeway.)
