Items Tagged with 'tunnel collapses'

A partial collapse in LA’s Clearwater Tunnel trapped 31 workers nearly 450 ft underground; all were rescued safely. Officials cite soft soil and “squeezing ground” as likely contributing factors.

As the last of 41 workers trapped for 17 days emerged this week, there are growing calls to reemphasize safety and geology risks as the nation embarks on a rapid infrastructure buildout.

Following a partial tunnel collapse in May at Hanford’s Plutonium Uranium Extraction Plant, a facility unused since the 1980s, a report from DOE and its contractor for the area, CH2M Hill Plateau Remediation Co., says a second facility tunnel, which once processed chemicals needed in nuclear production, does not meet current standards.