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All five flyovers at Bengaluru’s Central Silk Board double-decker corridor have become operational, completing a 3.2 km multi-level transport system designed to ease congestion at one of the city’s busiest junctions. Executed by Afcons Infrastructure Ltd as part of the Bengaluru Metro Phase 2A Blue Line project, the structure integrates road and metro infrastructure. The final two flyovers have enabled direct traffic movement between HSR Layout, BTM Layout and Ragigudda, reducing reliance on signal crossings. Authorities indicated that commuters could see travel time savings of up to 30 minutes. The project was constructed under significant space and traffic constraints, with limited working hours.
All five flyovers forming the Central Silk Board double-decker corridor in Bengaluru have been made operational, completing a multi-level transport structure aimed at easing congestion at one of the city’s busiest intersections. Advertisement
The final phase, which became functional in the past week, involved the opening of two additional flyovers—D and E—bringing the total network to five interconnected flyovers spanning approximately 3.2 km. The project has been executed by Afcons Infrastructure Ltd as part of its contract for the elevated section of the Bengaluru Metro Phase 2A Blue Line.
The Central Silk Board junction, located along the Outer Ring Road, has historically been among the most congested traffic nodes in the city, second only to Hebbal. The newly completed infrastructure integrates road and metro systems into a five-level configuration, making it South India’s first road-cum-rail double-decker structure.
The project forms part of the 9.8 km elevated corridor connecting Silk Board to KR Puram under the metro’s Blue Line. According to the executing agency, the structure has been designed to streamline traffic movement across key corridors, including HSR Layout, BTM Layout, Ragigudda and Electronic City, while reducing dependence on signal-based intersections.
Three flyovers—A, B and C—were opened in mid-2024, enabling traffic from Ragigudda and BTM Layout to move towards HSR Layout and Electronic City without stopping at the Silk Board signal. With the commissioning of flyovers D and E, additional traffic flows have been redirected, allowing vehicles travelling from HSR Layout to BTM Layout to bypass the junction entirely.
Project officials indicated that the complete system is expected to reduce travel time by up to 30 minutes for commuters using the corridor. Flyover D, constructed at a height of approximately 28 metres, forms the topmost level of the structure, crossing existing infrastructure including the Hosur flyover and metro lines.
The execution of the project involved significant engineering and logistical challenges. The site presented space constraints due to the presence of multiple operational flyovers, an under-construction metro station and a nearby stormwater drain. Construction activities were also restricted to limited night-time windows of approximately five hours, owing to heavy traffic volumes during the day.
The integrated flyover system now redistributes traffic across multiple levels, with the signalised junction primarily catering to movements between HSR Layout and Madivala, as well as Electronic City and HSR corridors.
From an urban infrastructure perspective, the project reflects the increasing adoption of multi-level transport solutions in high-density metropolitan areas, where land availability and traffic volumes necessitate vertical expansion of road networks alongside mass transit systems.
Source - PTI
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