The Mumbai Coastal Road connects the Princess Street flyover to Kandivali in the north to ease traffic congestion in Mumbai. The project's owner is the Municipal Corporation of Greater Mumbai (MCGM), India, and BANDI carried out the detailed design of the Package-1 of the project.

The Package-1 includes the Main Line bridges, which will be installed along Mumbai's coastline, with an up and down grade separation, and two interchange bridges, Amarson Garden and Haji Ali, which are currently under construction.

The main line bridge is a PSC girder bridge with a width of 18 meters for 5 lanes each way, and the interchange bridge is planned as 3 lanes each way with a width of 

11 meters, and we were responsible for the detailed design of the interchange bridge.

 The interchange bridges that branch off from the main line bridges could not be defined as standardized bridges due to their highly complex linearity with a mixture of   planes and straight lines, and it was challenging to analyze and design them considering the actual geometry of all the target bridges.

 In the detailed design, the bridge was planned as a continuous bridge with a span of 30~50 meters in consideration of the lower passing conditions and ground  conditions, and the piers and girders applied a mixed connection such as bearing support structure and rigid connection.

 For the girder, a 1-cell box cross section that can effectively resist torsional moment was applied, and a combination of cast-in-place and precast construction methods  were applied in consideration of the construction conditions at the site.

 Four cast-in-place piles with a diameter of 1 meter were applied to the pier foundation to accommodate the torsional and horizontal seismic forces of the superstructure in the detailed design, but through pre-construction design changes, the pier columns and foundation were changed to a single extended pile shaft, which is currently under construction.