Guinness Recognition Likely for Mumbai–Pune Missing Link Tunnels
Pune/Mumbai, 28th April 2026: The Mumbai–Pune Missing Link tunnels, carved through the Sahyadri mountain range, are set to emerge as a landmark in global infrastructure, with developers claiming they will be recognised as the world’s widest road tunnels. Executed by Navayuga Engineering Company Limited, the project is being seen as a major engineering breakthrough in underground highway construction.
The tunnels form the core of the Mumbai–Pune Expressway Missing Link stretch, designed to replace a slow and accident-prone ghat section with a faster and safer alternative. Built as large-span, single-cavern tunnels, they are engineered to handle multi-lane, high-speed traffic within a single expansive structure.
According to project details, each tunnel has an approximate width of 23.5 metres, significantly exceeding the global norm of 9 to 17 metres for road tunnels. The total tunnel length across twin alignments exceeds 10 kilometres. The scale of construction is expected to qualify the project for recognition by Guinness World Records under the category of “World’s Widest Road Tunnel,” based on internal structural span.
Officials involved in the project said achieving stability across such a wide span required advanced engineering techniques, including controlled excavation and robust structural support systems. The construction was carried out in the challenging terrain of the Sahyadri mountain range, which is known for variable rock formations, heavy rainfall, and risks of water ingress and slope instability.
Engineers adopted a sequential excavation method along with continuous geological assessment to adapt to changing ground conditions. The project also involved installation of advanced support systems and real-time monitoring of rock behaviour to ensure structural integrity and safety.
The execution of the tunnels required large-scale excavation, complex logistics in mountainous terrain, and integration with bridges and viaducts along the alignment. Experts noted that such infrastructure demands both precision and coordination across multiple engineering teams.
Once operational, the Missing Link is expected to reduce travel time between Mumbai and Pune by 25 to 30 minutes, while also improving road safety by eliminating sharp curves and steep gradients along the existing route. The stretch is part of one of India’s busiest transport corridors, carrying high volumes of passenger and freight traffic.
Infrastructure analysts say the project represents a significant advancement in India’s capability to execute complex underground works at scale. The anticipated global recognition is likely to place the Mumbai–Pune Missing Link tunnels among the most notable road tunnel projects worldwide.
