01677nam 22004693 450 991069869590332120220602181506.0(VaAlASP)2084099(CKB)4940000000512258(OCoLC)884785070(VaAlASP)ASP2084099/engv(OCoLC)166327823(EXLCZ)99494000000051225820220602d2007 || |engur|n||||||||atxtrdacontentcrdamediacrrdacarrierCeiling Collapse in the Interstate 90 Connector Tunnel, Boston, Massachusetts, July 10, 2006 /by the National Transportation Safety BoardDistrict of Columbia :National Transportation Safety Board,2007.1 online resource (132 pages)Highway accident report ;NTSB/HAR-07/02Title from resource description page (viewed June 02, 2022).This NTSB report documents the 2006 collapse of the tunnel ceiling in Boston's Big Dig.Highway accident report ;NTSB/HAR-07/02.Civil and Environmental EngineeringTransportation engineeringCivil engineeringTunnelsBoston, MA112Civil and Environmental EngineeringTransportation engineeringCivil engineeringTunnelsVaAlASPVaAlASPBOOK9910698695903321Ceiling Collapse in the Interstate 90 Connector Tunnel, Boston, Massachusetts, July 10, 20063154406UNINA