Media Summary: The largest roadheader working in the USA today holed through to complete the topheading Concerns about the structural integrity of the November 29, 2011... The proverbial light at the end of the tunnel became a reality this week when a giant road header chewed ...
Caltrans District 4 Caldecott Fourth Bore Project Early Excavation - Detailed Analysis & Overview
The largest roadheader working in the USA today holed through to complete the topheading Concerns about the structural integrity of the November 29, 2011... The proverbial light at the end of the tunnel became a reality this week when a giant road header chewed ... Caldecott Fourth Bore B-Roll: Tunnel Systems and OMC Another look behind the construction barriers at the Another peak behind the construction barrier at the construction site.
Caltrans Begins Boring 4th Tunnel For The Caldecott Tunnel