Bengaluru’s longest double-decker flyover takes shape: A mega corridor set to redraw city travel

BMRCL has floated tenders to build Bengaluru’s longest double-decker flyover under Phase III of Namma Metro, combining a Metro viaduct and road flyover to tackle congestion and expand public transport across key growth corridors. (AI image)

The Phase III project spans 44.6 km across two corridors — JP Nagar 4th Phase to Kempapura via Outer Ring Road (32.1 km) and Hosahalli to Kadabagere along Magadi Road (12.5 km). (AI image)

The first tender package covers a 6.5 km double-decker stretch from JP Nagar 4th Phase to Kamakya Junction, including road-cum-Metro structures, ramps and stations at four busy residential locations. (AI image)

To make way for the new structure, the existing flyover at Dollars Colony (Delmia) will be demolished. This package alone is estimated to cost ₹1,375 crore, reflecting the scale of the upgrade. (AI image)

The second tender involves a 5 km double-decker flyover up to Nagarabhavi Circle, with Metro stations at Hosakerehalli, Dwaraka Nagar, Mysuru Road and Nagarabhavi, costing around ₹1,396 crore. (AI image)

The third package includes a 6.6 km Metro stretch up to Sunkadakatte, with stations at Vinayaka Layout, Papareddy Palya and BDA Complex Nagar, plus depot connectivity ramps, at ₹1,415 crore. (AI image)

BMRCL said additional tenders will be floated soon for the remaining double-decker corridor from Sunkadakatte to Kempapura and along Magadi Road, completing the full Phase III alignment. (AI image)

The Centre approved the Orange Line in August 2024, after which the state proposed a double-decker structure to ease ORR traffic. The state cabinet later cleared ₹9,700 crore for the road flyover portion. (AI image)

Last year, BMRCL proposed shifting a Metro station from Peenya to Goraguntepalya, trimming the alignment by 300 metres. These changes are expected to be finalised and reflected in upcoming tenders. (AI image)

While aimed at easing congestion, mobility experts have warned that adding road flyovers alongside Metro corridors may encourage private vehicle use, potentially diluting the long-term benefits of public transport investment. (AI image)