Download or read book A Preliminary Study of the San Pedro - Terminal Island and Terminal Island - Long Beach Channel Crossings on Route 231 written by California. Division of Highways and published by . This book was released on 1950 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study covers estimated cost, traffic needs, engineering feasibility, and financing of three types of crossings for both locations: Drawbridges, high level bridges, and tubes.