Dec. 18, 2016

Boston's highway system before the Central Artery/Tunnel Project

See https://en.wikipedia.org/wiki/Big_Dig for the highway system both before and after the Central Artery/Tunnel Project

Dec. 18, 2016

Zakim Bunker Hill Bridge over the Charles River under construction, looking north

The old elevated Central Artery crossing is to the right

Dec. 18, 2016

Construction sites of the "Big Dig"

Dec. 18, 2016

Interstate 93 Tunnel

Dec. 18, 2016

Big Dig

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From Wikipedia, the free encyclopedia