The design-build phase of the $2.1- billion Elizabeth River Tunnels project in Norfolk, Va., finished last month—one year ahead of schedule—in a P3 collaboration between a Skanska USA-Kiewit-Weeks Marine Inc. team and the Virginia Dept. of Transportation.
Long before Donald Trump promised to “drain the swamp” in Washington, the U.S. Environmental Protection Agency issued a set of very detailed directions for ending the persistent flooding of the District of the Columbia’s 61-square-mile watershed from the city’s combined-sewer overflow system.
On the first major construction job in decades along a busy stretch of Interstate 70, the project team expanded two highway tunnels, added an eastbound freeway lane and provided for future westbound capacity.
The tunnel-boring machine will dig twin 1.1-mile-long tunnels for the Los Angeles Regional Connector transit project, with tunneling to begin in early 2017.