or the “Big Dig.” Failure of a group of adhesive anchors caused a section of the tunnel’s concrete ceiling to collapse, killing a motorist and injuring another. After the Big Dig tunnel ...

STAMFORD — Anchors used to secure a concrete plaster ceiling at the Stamford train station failed, causing the ceiling's collapse on May 31, a state spokesperson said. "Inspection engineers ...

announce the launch of the new Adhesive Anchor Installer Certification program. In the summer of 2006, a portion of the concrete ceiling of the Central Artery/Tunnel Project in Boston, Mass., also ...

At a press briefing on Monday, the executive officer of the tunnel’s operator said it appeared that some “anchor bolts” used to secure concrete slabs to the tunnel ceiling were missing.