Bengaluru Traffic Relief Begins asSilk Board Double-Decker Flyover Opens Fully, Blue Line Metro Next

Today is a turning point for the tens of thousands of commuters who have spent years inching through Bengaluru's notorious Silk Board junction, one of the city's most congested intersections

With flyovers D and E now open to operational traffic, all five flyovers of the Central Silk Board double-decker flyover network are fully functional.

Image Source: Bengaluru Traffic Police Official Twitter

The milestone was announced on April 25, 2026, by Afcons Infrastructure Limited, the Shapoorji Pallonji Group company that built the structure under contract from the Bangalore Metro Rail Corporation Limited (BMRCL).

The Bengaluru's Silk Board Double-Decker Flyover is South India's first road-cum-rail structure, combining vehicular road traffic on the lower level with Namma Metro tracks on the upper level an good example of urban engineering executed in one of the most constrained construction environments in the country.

Silk Board Double-Decker Flyover Construction Timeline

Flyovers A, B, and C were opened in mid2024, easing travel from Ragigudda and BTM Layout towards HSR Layout and Electronic City. The final two flyovers D and E complete the loop, allowing traffic from HSR Layout to reach Ragigudda without touching the Silk Board signal.

The Bengaluru Traffic Police inspected the flyover on April 2, 2026 and confirmed that it is ready for use. Trial traffic runs began on April 22, 2026, with full operational opening confirmed on April 25. Flyover D is the tallest of the five at 28 metres, rising to the fifth level above ground and crossing the existing Hosur flyover, the Yellow Line metro viaduct, and the double-decker road structure below it.

Afcons Infrastructure Limited constructed the five flyovers as part of a larger contract for the elevated metro project along the Outer Ring Road. The project also covers a 9.8 km elevated stretch of Bengaluru Metro's Silk Board-KR Puram (Phase 2A) corridor, commonly known as the Blue Line.

The double-decker flyover is part of the BMRCL-funded infrastructure program for Namma Metro's expansion. The road portion of the Ragigudda-Silk Board flyover was built at a cost of approximately Rs. 449 crore, making it one of the more expensive per-kilometre urban flyover projects in Karnataka. The structure runs 3.2 km from Ragigudda to Central Silk Board, and at 31 metres at its peak height, it is the tallest railcum-road flyover in South India.

This Silk Board flyover is the precursor to the Blue Line metro, which runs from Silk Board to KR Puram, and becomes fully operational.
Once the metro starts running, this area will have multiple travel options all at one place - regular road traffic, elevated flyovers, and metro trains above. What was once one of Bengaluru's worst traffic spots could become much smoother and easier to navigate.