The Mumbai Metropolitan Region Development Authority (MMRDA) is preparing plans for an ambitious 21-kilometre double-decker flyover to connect Shil Phata junction with Ranjnoli junction via Dombivli and Kalyan — a major step towards integrating metro and road transport infrastructure across the Mumbai Metropolitan Region (MMR). The project aims to decongest arterial routes, strengthen metro connectivity, and reduce travel time between Kalyan, Dombivli, and Bhiwandi — three of the region’s fastest-growing urban clusters.
According to officials, MMRDA has initiated the process of appointing a consultant to prepare the detailed project report (DPR). The proposed flyover will feature a dual-deck structure — with a four-lane roadway on the lower level dedicated to vehicular traffic and an upper deck carrying metro tracks for three planned corridors: Metro Line 5 (Bhiwandi to Kalyan), Line 12 (Kalyan to Taloja), and Line 14 (Kanjurmarg to Badlapur). Once completed, the flyover will run along National Highway 48 and National Highway 160, seamlessly linking key residential and industrial zones. Urban transport experts view the project as a “strategic link” that will enhance multi-modal connectivity across MMR and integrate with major regional corridors such as the Airoli–Katai Freeway and the Virar–Alibaug Multi-Modal Corridor. Together, these projects are expected to transform commuting patterns and unlock economic potential in the extended suburbs.
“The proposed structure is designed to optimise land use by combining road and rail infrastructure,” an MMRDA official said. “This approach not only saves space but also reduces environmental impact by avoiding additional land acquisition and construction footprint.” However, the project will pose engineering challenges, particularly where the flyover crosses active railway lines — near Patri Pul in Kalyan and before Katai Naka. Officials indicated that the DPR will address these challenges through the use of advanced construction methods and minimal disruption strategies. The plan also takes into account the nearby alignment of the Mumbai–Ahmedabad Bullet Train to ensure technical compatibility and safety.
Urban planners have lauded the proposal as an example of integrated, future-ready transport design. “Combining road and metro corridors creates a compact, efficient mobility system that aligns with sustainable city planning principles,” said a senior urban mobility expert. The MMRDA’s growing emphasis on hybrid transport infrastructure is in line with Mumbai’s broader goal of achieving a more sustainable, low-emission urban future. If implemented effectively, the double-decker flyover could become a model for multi-level transport infrastructure in other high-density Indian metros — bridging the gap between speed, sustainability, and accessibility.
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