Latest News

Read more about our recent projects, our attendances at conferences and events or the latest developments at GZ.

View News By

Show All News

Official Caldecott News

For the latest construction progress and other information regarding the Caldecott Fourth Bore Project, visit the official website: www.caldecott-tunnel.org

Read More

Breakthrough of the Caldecott Tunnel’s Fourth Bore Marks a Major Project Milestone

Oakland, California, November 29, 2011 – the tunnel “breakthrough” occurred on November 29, 2011 at 2:37pm, when the tunnel’s eastern

Read More

Speaking at Transportation Cabinet of Kentucky’s Tunnel Seminar

Frankfort, Kentucky, December 5-6, 2011 – Vojtech Gall, Ph.D., P.E. shared his expertise on NATM / SEM Design and Construction

Read More

GZ Principal, Kurt Zeidler, Ph.D., CEng at IS-AGTG

Singapore, December 1-2, 2011 – GZ Principal, Kurt Zeidler, Ph.D., CEng enjoyed speaking at the International Symposium on Advances in

Read More