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Dig Here! PDF

The Big Dig was the most expensive highway project in the US, and was plagued by cost overruns, delays, leaks, design flaws, charges of poor execution and use of substandard materials, criminal arrests, and one death. The Rose Fitzgerald Kennedy Greenway is a roughly 1. This project was developed in response to traffic congestion on Boston’s historically tangled streets which were dig Here! PDF out long before the advent of the automobile. As early as 1930 the city’s Planning Board recommended a raised express highway running north-south through the downtown district in order to draw traffic off the city streets.


Författare: Thomas Penfield.
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The expressway had tight turns, an excessive number of entrances and exits, entrance ramps without merge lanes, and as the decades passed, had continually escalating vehicular traffic that was well beyond its design capacity. This section does not cite any sources. Another important motivation for the final form of the Big Dig was the abandonment of the Massachusetts Department of Public Works‘ intended expressway system through and around Boston. The Central Artery, as part of Mass. Building demolition and land clearances for I-95 through the neighborhoods of Roxbury, Jamaica Plain, and Roslindale led to secession threats by Hyde Park, Boston’s youngest and southernmost neighborhood. With ever-increasing traffic volumes funneled onto I-93 alone, the Central Artery became chronically gridlocked. The original 1948 Master Plan included a Third Harbor Tunnel plan that was hugely controversial in its own right, because it would have disrupted the Maverick Square area of East Boston.

Boston’s Logan Airport lies across Boston Harbor in East Boston, and before the Big Dig the only access from downtown was through the paired Callahan and Sumner tunnels. A number of public transportation projects were included as part of an environmental mitigation for the Big Dig. The project was conceived in the 1970s by the Boston Transportation Planning Review to replace the rusting elevated six-lane Central Artery. The expressway separated downtown from the waterfront, and was increasingly choked with bumper-to-bumper traffic.