The project name is Mumbai Trans Harbour Link {MTHL) and is also known as Atal Bihari Vajpayee Sewri Nhava Sheva Atal Setu or just Atal Setu. The bridge connects Mumbai city to its satellite city- Navi Mumbai. The bridge begins in Sewri at south Mumbai and cross Thane Creek north of Elephanta Island and terminate at Chirle Village near Nhava Sheva with an end-to­end length of 21.8km including 16.5 km long sea bridge and 5.3 km long land viaduct with 3 major interchanges at Sewri, Shivajinagar and Chirle.

This 22km long sea bridge connects Sewri in Mumbai with Nhava Sheva in Navi Mumbai. It comprises a prestressed concrete viaduct structure, and steel orthotropic girders for the longer spans up to 180m. Considerable focus has been given to corrosion protection and durability issues owing to the aggressive marine environment, and special measures have been used during construction and in service to protect sensitive flamingo habitats on both sides.