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Artery tunnel springs leakWater gushed into the Central Artery's northbound tunnel for hours from a small breach in the eastern wall, backing up afternoon rush-hour traffic for miles. (Boston Globe, 9/16/04)
Big Dig found riddled with leaks
Engineers investigating the cause of the massive Big Dig tunnel leak discovered the project is riddled with hundreds of fissures pouring millions of gallons of water into the tunnel system. (Boston Globe, 11/10/04)
Use of slurry walls may have spawned leaks
Bechtel/Parsons Brinckerhoff's decision to use a pair of massive slurry walls as a lone barrier in the Big Dig project may have led to the hundreds of cracks in the tunnel walls. (Boston Globe, 12/19/04) |
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Leakage in Big Dig tunnel rises
Almost three years after state managers vowed to close thousands of leaks in the Big Dig tunnels, nearly 2 million gallons of water flow each month through the O'Neill Tunnel, an 18 percent increase over last year, a Globe analysis shows. (Boston Globe, 7/1/07)
Almost three years after state managers vowed to close thousands of leaks in the Big Dig tunnels, nearly 2 million gallons of water flow each month through the O'Neill Tunnel, an 18 percent increase over last year, a Globe analysis shows. (Boston Globe, 7/1/07)
Leaks still plague tunnel
Water is still leaking steadily into the Thomas P. O'Neill Jr. Tunnel with no signs of abating and continued uncertainty about where it is all coming from, according to a new state analysis, which flatly contradicts Massachusetts Turnpike Authority officials' claim that they have the problem under control. ()
Water is still leaking steadily into the Thomas P. O'Neill Jr. Tunnel with no signs of abating and continued uncertainty about where it is all coming from, according to a new state analysis, which flatly contradicts Massachusetts Turnpike Authority officials' claim that they have the problem under control. ()

Mass. crisis of confidenceWith a Big Dig flaw now responsible for a death, state officials rushed to contain an unprecedented crisis of public confidence in the project. (Boston Globe, 7/12/06)
Workmanship and design are called into question
Investigators should focus on some basic, troubling questions about the way the tunnel ceiling was built, civil engineers and highway construction specialists said. (Boston Globe, 7/12/06)
Concrete falls, and a couple's joy is destroyed
Angel Del Valle was driving through the Interstate 90 connector at about 10:45 Monday night, his wife, Milena, at his side, to pick up his brother at Logan International Airport. Suddenly, in front of him, the ceiling began to give way. (Boston Globe, 7/12/06) ![]() ![]() |
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Artery errors cost more than $1bA yearlong Globe investigation determined that at least $1.1 billion in Big Dig construction cost overruns, or two-thirds of the cost growth to date, are tied to Bechtel mistakes. (4/28/03)
Cost-recovery efforts have been nearly a lost cause
State officials routinely overlooked or excused Bechtel's errors in the construction of the Big Dig, a Globe investigation found. (2/11/03)
Lobbying translates into clout
Bechtel has cemented bonds with policymakers to protect profits and deflect criticism. (5/29/03) |
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Rising scrutiny, soaring costs
Roughly halfway through the 20-year endeavor known as The Big Dig, there are still miles -- expensive miles -- to go. (Boston Globe, 9/11/94)
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