Find out about the origins of the Pasadena Freeway in this article by Charles Cooper. The article, Mark 30th Anniversary of Freeway (
http://dbase1.lapl.org/webpics/calindex/documents/10/520335.pdf), was published on 12/31/1970 to mark just that occasion and covers the original opening ceremony, the first survey, the freeway’s safety record, and its status as a landmark. Check it out.