Commuters in Mumbai usually need a lot of patience. The average speed on the roads of this major Indian city is just 21 to 25 km/h at rush hour. Thanks to the "Mumbai Coastal Road Project", this will change in the future. Among other things, the project includes a "high-speed sector" around ten kilometers long, on which road users will be able to travel at 80 km/h throughout.
The new coastal road, which stretches over a length of 29.2 kilometers, will ensure a significantly better flow of traffic. The heart of the project is an underwater tunnel with a length of around three kilometers. It includes a double tube with two lanes and an emergency lane. In heavy traffic, the tunnel can be used as a three-lane road.
Lombardi was responsible for the execution planning of the construction and tunnel construction work. We were also responsible for designing the route and planning the underground technical buildings at both portals. In addition, our experts provided technical support for the construction work, operation of the tunnel boring machine, tunnel ventilation and the planned modernization of the electrical and mechanical systems.
There is no question that the new coastal road in Mumbai is setting new standards in many aspects. The project includes the realization of India's first underwater tunnel. Lombardi played a key role in defining the specifications for the "Mawala" tunnel boring machine, which was specially designed for this project. With a diameter of over twelve meters, it is the largest tunnel boring machine of its kind ever used in India.
Thanks to the new coastal road, the journey time for commuters will be significantly reduced - and fuel consumption can also be cut by 35 percent. But the engineers have not only thought about traffic: the new coastal section also includes a promenade with green spaces and a recreational area for the local population.