Big Dig
From Underfoot
The Big Dig was a megaproject in Boston that rerouted the elevated Central Artery of Interstate 93 into the O'Neill Tunnel and built the Ted Williams Tunnel to extend Interstate 90 to Logan International Airport. Those two projects were the origin of the official name, the Central Artery/Tunnel Project. The megaproject constructed the Zakim Bunker Hill Bridge over the Charles River, created the Rose Kennedy Greenway in the space vacated by the previous elevated roadway and funded more than a dozen projects to improve the region's public transportation system. Planning began in 1982 and construction was carried out between 1991 and 2006. The project concluded in December 2007.
Wikimedia, Wikidata
CA/T; Central Artery/Third Harbor Tunnel Project; Central Artery/Tunnel Project
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Location: 42.362, -71.0556, KML, Cluster Map, Maps,
12 places
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Big Dig ⓘ
highway project -

Callahan Tunnel ⓘ
tunnel in Boston -

Fort Point Tunnel ⓘ
road tunnel in Boston, Massachusetts -

Prudential Tunnel ⓘ
tunnel in Boston, Massachusetts -

South Boston CSO Storage Tunnel ⓘ
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Tremont Street Subway ⓘ
Boston subway tunnel -
Winter Street Concourse ⓘ
pedestrian tunnel in Boston, Massachusetts -

Walden Street Cattle Pass ⓘ
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Sumner Tunnel ⓘ
tunnel in Boston -

Dewey Square Tunnel ⓘ
tunnel in Massachusetts -

Ted Williams Tunnel ⓘ
tunnel in Boston -

Thomas P. O'Neill Jr. Tunnel ⓘ
tunnel in Boston
| Type | Subtype | Date | Description | Notes | Source |
|---|---|---|---|---|---|
| site | tunnel | Big Dig | tunnel, transport megaproject, controlled-access highway | Wikidata | |
| site | tunnel | Callahan Tunnel | Massachusetts Department of Transportation, road tunnel | Wikidata | |
| site | tunnel | Fort Point Tunnel | tunnel | Wikidata | |
| site | tunnel | Prudential Tunnel | Massachusetts Department of Transportation, road tunnel | Wikidata | |
| site | tunnel | South Boston CSO Storage Tunnel | tunnel | Wikidata | |
| site | tunnel | Tremont Street Subway | subway tunnel | Wikidata | |
| site | tunnel | Winter Street Concourse | pedestrian tunnel | Wikidata | |
| site | tunnel | 1857 | Walden Street Cattle Pass | tunnel | Wikidata |
| site | tunnel | 1934 | Sumner Tunnel | Massachusetts Department of Transportation, road tunnel | Wikidata |
| site | tunnel | 1959 | Dewey Square Tunnel | Massachusetts Department of Transportation, road tunnel | Wikidata |
| site | tunnel | 1995 | Ted Williams Tunnel | Massachusetts Department of Transportation, road tunnel | Wikidata |
| site | tunnel | 2003 | Thomas P. O'Neill Jr. Tunnel | Massachusetts Department of Transportation, road tunnel | Wikidata |
| commons | image | Valenti Way at Beverly Street, Boston (53820604790) | Commons | ||
| commons | image | Haymarket Garage on a foggy day (53812948107) | Commons | ||
| commons | image | BigDigSupportsCentralArtery.agr | Commons | ||
| commons | image | Boston Chinatown 2006 05 25 | Commons | ||
| commons | image | Flowers at Beverly Street and Valenti Way (53820670304) | Commons | ||
| commons | image | Boston CAT Project-construction view from air | Commons | ||
| commons | image | ISH WC Boston7 | Commons | ||
| commons | image | Bigdigback | Commons | ||
| commons | image | Central Artery construction along Millers River, Charlestown, Massachusetts | Commons | ||
| commons | image | Miller's River Littoral Way | Commons | ||








