Boston Central Artery, Contract No. 95287-C11A1

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Estimated cost:		Commencement:	December 28, 1995	Completion date:	December 11, 2003
Location:	Boston, MA United States
Technical data:	Road tunnel, 4 lanes, L = 3,940 ft (1200 m). Design of a mined solution to the engineers cut & cover tunnel design using NATM with various pre-support and groundwater cut-off measures, including barrel vaulting and cut-off walls.
Geology description:	Glacial till (cohesive and granular) and weathered to unweathered argillite bedrock. Geology Type: Hard Rock
Geology types:	Hard rock
Categories:	Urban Highway Tunnel
Service areas:	Tunnel Design & Specialities

Description

Barrel Vault Method

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