Orchestrating the Boston Marathon for 30,000 runners is a huge task. One of the biggest projects involves assembling a temporary bridge over Boylston Street, at the finish line, which becomes a ...
Chessie, a tunnel-boring machine, has completed her work on the Chesapeake Bay Bridge-Tunnel's new Parallel Thimble Shoal Tunnel. The machine removed 500,000 cubic yards of soil, and installed almost ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results