Leaks, cracks and fractured rebar resulting from 106 years of wear and tear were detected last fall during a detailed structural inspection of the tunnel. The repairs are expected to require ...

Aerial views showed crews attempting to reach the woman by placing a ladder in an opening in the ground amid dirt, rocks and rebar in an effort to access the tunnel below. According to LAFD ...

In the early years of its development, steel fibre-reinforced concrete was principally used in two major areas of application: reinforcement in temporary spray concrete tunnel linings and industrial ...