When the eastern span of the Bay Bridge was deemed seismically unsafe after the Loma Prieta earthquake in 1989, its fate was certain. Demolition crews tore it down, and a construction team replaced it ...

PORTLAND, Ore. (KATU) — A Union Pacific freight train derailed on the east end of the Steel Bridge on Monday morning, forcing the closure of the entire bridge for several hours. The train derailed ...

The plan to 3D-print a bridge in mid-air was always bonkers. How could a technology best known for creating flimsy prototypes and personalized action figures be used for permanent construction ...

The big green beam that arrived was part of a delta frame — steel triangles that support the top girders to form the steel supports of the bridge. Surrounded by a motorcade, an oversized truck ...