710 Expansion
Introduction
For over forty years the planning of extension of 710 state routes has been in the planning, the main aim was to ease traffic congestion and to facilitate air quality within the metropolitan area of Los Angeles County .The department of transportation in California and metropolitan transportation authority of the county of Los Angeles came up with proposal of a tunnel concept by extending the SR-710.With over 15.2 m in diameter and 17.7 km in length, the tunnel would stand to be among the world’s largest highway tunnels .This project has been challenged by a lot of opposition ...
