Boring under South Boston

A 350-ton boring machine emerged today behind the State Police station on Carson Beach after drilling underground over a year. The 19-foot wide, 2.1-mile long sewage and storm water tunnel runs beneath William J. Day Boulevard along the shore of Dorchester Bay. Story

SOURCE: MWRA
DAVID BUTLER, JAVIER ZARRACINA, ED WIEDERER, DAIGO FUJIWARA/GLOBE STAFF