A worker is in serious condition after an accident at a Sound Transit construction site in Mountlake Terrace, according to officials. The 40-year-old man was taken to Harborview Medical Center. He ...

It will likely be many months before we know for sure what caused the catastrophic collapse of the Champlain Towers South building in Surfside, Florida, last week, which killed at least 18 people. But ...

Reinforced autoclaved aerated concrete (RAAC) is a lightweight form of concrete that was used in schools, colleges and other building construction from the 1950s until the mid-1990s, according to a ...

A professional engineer and concrete repair specialist said he believes “concrete cancer,” a process that happens when steel rods in building structures rust and expand, might have caused the deadly ...

As authorities shifted Wednesday from rescue operations to deciding how to safely tear down the dangling wreckage of a half-built Hard Rock Hotel, theories began to take hold over just what ...