Early 2012 Construction

Tunnel Breakthrough, November 29, 2011

Photos courtesy of Karl Nielsen.

Fall 2011 Construction

July 2011 Construction

West Portal Crosspassages

Excavation of the first of seven cross passages between bores four and three has started. The cross passages will serve as a safety feature for motorists when the new tunnel opens to traffic

June 2011 Construction

East Portal

Photos courtesy of Karl Nielsen, Metropolitan Transportation Commission (MTC)

March 2011 Construction

West Portal, March 13, 2011
Equipment is Mobilized for Tunneling on the Western Side

West Portal, March 11, 2011
Equipment is readied for application of shotcrete, a kind of concrete applied at high pressure to provide reinforcement

January 2011 Construction

East Portal

West Portal

November 2010 Construction

West Portal

East Portal

October 2010 Construction

Tunneling Commencement Event

Groundbreaking Event

Historic Photos of the Caldecott Tunnel