How Much Did the Big Dig Cost?

The big dig was completed on december 31, 2007. The project was originally scheduled for completion in 1998. The original estimated cost was $2.8 billion. The final project cost was $14.6 billion.

How Much Did the Big Dig Cost?

The Big Dig, also known as the Central Artery/Tunnel project, was an ambitious and expensive project to modernize the infrastructure of Boston, Massachusetts. It was the most expensive highway construction project in the United States and has been called the most complex and technically challenging engineering project ever undertaken in America. When it was completed in 2007, the Big Dig had cost over $22 billion, or more than $14 billion over its projected budget.

The Big Dig began construction in 1991 and aimed to replace the aging Central Artery, a congested and elevated six-lane highway that ran through downtown Boston. The project would replace the highway with an underground series of tunnels, allowing for more efficient traffic flow and restoring access to areas of downtown Boston that had been blocked by the highway. The project also included the rerouting of the I-93 and I-90 highways, the construction of a new highway connector, and the construction of the Leonard P. Zakim Bunker Hill Bridge.

The original estimated cost for the Big Dig was $2.6 billion, but the final cost was more than ten times that amount. The most significant cost increases were due to delays, cost overruns, and changes to the scope of the project. Other factors that contributed

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