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Design and construction was supervised by a joint venture of Bechtel Corporation and Parsons Brinckerhoff. Because of the enormous size of the project—too large for any company to undertake alone—the design and construction of the Big Dig was broken up into dozens of smaller subprojects with well-defined interfaces between contractors.
The company played a key role in the Boston Big Dig project. [3] Notable contracts during the Big Dig included the Ted Williams Tunnel (Joint venture with Morrison-Knudsen and Interbeton), the North End section of the Central Artery tunnel (CA/T) (Joint Venture with the Slattery division of Skanska USA and Tutor Perini), [4] and the Central ...
The White House Big Dig was the name used in press reports to describe a multi-year construction project at the White House that began in September 2010 and temporarily concluded in 2012, with a second phase planned for the future.
The following morning, on June 16, a construction company covered the exposed area of the column with a cement mixture, according to the records. County officials kept the monorail shut down until ...
Construction equipment being used to dig up rocky ground. Although humans are capable of digging in sand and soil using their bare hands, digging is often more easily accomplished with tools. The most basic tool for digging is the shovel. [1] In neolithic times and earlier, a large animal's scapula (shoulder blade) was often used as a crude ...
The Big Dig was years over schedule and engineering costs to several times of Bechtel/Parsons Brinckerhoff's original estimates, from $8 Billion to in excess of $24 Billion. Due to the poor construction, it has been estimated that the Big Dig's life span will be far short of the original specification that taxpayers paid for.
Cross section of a ground freezing pipe as used in the Big Dig. Ground freezing is a construction technique used in circumstances where soil needs to be stabilized so it will not collapse next to excavations, or to prevent contaminants spilled into soil from being leached away. [1] Ground freezing has been used for at least one hundred years.
Modern Continental Construction was a heavy-construction company and the original business in the Modern Continental group. It was founded in 1967 by Kenneth Anderson and Italian immigrant Les Marino. Beginning with a single sidewalk contract in Peabody, Massachusetts, the company grew into a regional heavy construction giant. [2]