The Big Dig

	A view of the Old Central Artery, Looking Northbound from Atlantic Ave and Congress St.
	I-93 southbound on ramp to the old CA tunnel from Purchase and Congress Streets. A Boston Signal Division Employee works on a signal cabinet on the left.
	Vent Building No. 3 under construction between Congress Street and new Northern Avenue.
	A view of I-93 and Atlantic Ave.
	A disconnected part of the Central Artery, what use to be an on ramp to I-93 Northbound.
	The Boston Custom House Clock Tower taken from Atlantic Ave.
	A picture of new supports for the Central Artery.
	Under the Central Artery. Looking Northbound.
	A new off ramp from the new Central Artery tunnel. An old offramp is also in use in the background.
	The old Charles River Bridge and the new Bunker Hill Bridge from Washington Street.
	Another look at the new supports that had to be made for the existing Central Artery.
	The Bunker Hill Bridge and the FleetCenter from Causeway Street.