The Mumbai Trans Harbour Link, also known as the Sewri–Nhava Sheva Trans Harbour Link, is an under-construction 21.8 km (13.5 mi) 6-lane freeway grade road bridge, which will connect Mumbai with Navi Mumbai, its satellite city. When completed, it would be the longest sea bridge in India. The bridge will begin in Sewri, South Mumbai, will cross Thane Creek north of Elephanta Island and will terminate at Chirle, near Nhava Sheva. The road will be linked to the Mumbai–Pune Expressway in the east and to the under-construction Coastal Road in the west. The 6-lane highway will be 27 meters in width, in addition to two emergency exit lanes, edge strip and a crash barrier.