How far over budget was the Big Dig?
How far over budget was the Big Dig? However, the project was completed in December 2007 at a cost of over $8.08 billion (in 1982 dollars, $21.5 billion adjusted for inflation, meaning a cost overrun of about 190%) as of 2020.
Does the blue line go underwater?
Perhaps ironically, the Blue Line takes several points of pride from its proximity to water, which gives it its name. Local historians claim the tunnel that runs under the harbor as the first underwater subway tunnel in the United States.
Is Callahan Tunnel underwater?
It was originally a two-way road that carried traffic in both directions, until the opening of the parallel Callahan Tunnel in 1961. The tunnel is 8,448 feet long, of which approximately 3,960 feet are underwater. In 2017, the state removed the tollbooths as part of a switch to electronic tolling.
Was The Big Dig worth it?
There were some huge pros to the Big Dig: submerging the interstate cleared up some horrific traffic congestion (vehicles used to crawl for 10 hours a day), opened up 300 acres of land, and jumpstarted the Innovation District.
What was the criticism of the Big Dig?
With interest, the project could ultimately cost around $24 billion, finally getting paid off in 2038. Besides creating a financial nightmare, the Big Dig was plagued by huge constructional flaws – which obviously added fuel to the fiscal firestorm.
How much did the Big Dig cost inflation?
However, the project was completed in December 2007 at a cost of over $8.08 billion (in 1982 dollars, $21.5 billion adjusted for inflation, meaning a cost overrun of about 190%) as of 2020.
What was the Big Dig funding?
The Big Dig, a project funded by federal and stated monies (about 60/40), was substantially completed late in 2007 for nearly $15 billion.
How much concrete did the Big Dig use?
The project placed 3.8 million cubic yards of concrete. That's enough to build a sidewalk three feet wide and four inches thick from Boston to San Francisco and back three times. The project installed more than 26,000 linear feet of steel-reinforced concrete slurry walls.