A 700-foot-long tunnel boring machine named Mary is being assembled in Washington, D.C., to dig a 5.5-mile stormwater and ...

CHARLESTON, S.C. (WCSC) - The Charleston Water System is breaking ground on the final phase of a massive underground tunnel project that will connect sewage pipes in rural parts of the county to the ...

National Briefing: New England: Massachusetts: Big Dig Leaks Found Water continues to leak steadily into a Boston Big Dig tunnel, an independent analysis shows, despite claims by officials of the ...

BOSTON — The Big Dig highway tunnels under downtown Boston are structurally sound and safe despite recent leaks, the Federal Highway Administration said Monday. The agency launched the investigation ...