PODCAST Jack Lemley: Big Dig Report Reaction The National Transportation Safety Board found on July 10 that improper epoxy use, poor or misleading product information and lack of follow-up inspections were the critical factors that led to a fatal Interstate 90 tunnel plenum collapse in Boston last year. The NTSB board unanimously adopted the 171-page report, which includes 20 findings and 20 safety recommendations. In a five-hour meeting, held one year to the day after the collapse, the board determined that the pullout failure of twenty 8-in.-long threaded stainless-steel epoxied bolt anchors precipitated the collapse. Ten precast concrete panels and

BIG DIG The Central Artery/Tunnel project will change the way Boston works, but it cost $14.6-billion. (Photo courtesy of bigdig.com) The Commonwealth of Massachusetts and the Massachusetts Turnpike Authority filed suit March 16 against the joint venture of Bechtel/Parsons Brinckerhoff seeking damages of up to $146 million in connection with its role as project consultant on Boston’s $14.6-billion Central Artery/Tunnel project. At particular issue is the escalation in project costs, which went from $2.6 billion in 1982 to the final tally of $14.6 billion. B/PB claims that the charges are without merit. Filed in Suffolk County Superior Court, the civil