Connecting Mumbai and Nagpur, the Samruddhi Expressway has become a defining example of a large-scale road asset that drives economic integration, spatial rebalancing and long-term regional growth. Conceived as a high-speed, access-controlled greenfield corridor, the project is helping to reshape Maharashtra’s industrial, logistics and urban development landscape. The expressway has reduced the Mumbai-Nagpur travel time from 16 to 8 hours, enabling fast, safe freight and passenger movement at speeds up to 150 kilometres per hour (kmph) on plains and 120 kmph in hills.
Officially named the Hindu Hrudaysamrat Balasaheb Thackeray Maharashtra Samruddhi Expressway, the 701 km corridor has transformed long-distance mobility across Maharashtra. The construction on the project began in 2018, with the final 76 km stretch between Igatpuri and Amane inaugurated on June 5, 2025. The expressway was built at an estimated cost of Rs 11.82 billion as a hybrid annuity model project. Beyond its scale, the project excels in engineering, safety, sustainability, and integrated planning to enhance logistics and regional connectivity.
Key engineering and construction aspects
Developed by the Maharashtra State Road Development Corporation, the project is a six-lane, access-controlled corridor designed for expansion to eight lanes. It exemplifies engineering excellence, with 65 flyovers, 33 major bridges, 274 minor bridges, six tunnels, multiple interchanges, vehicular underpasses and wayside amenities. These features ensure uninterrupted, safe movement across rivers, railways, settlements and hilly terrain.
One of the most significant engineering achievements of the project is the construction of India’s longest road tunnel, the 7.8 km twin-tube tunnel at the Kasara Ghat in Maharashtra. The tunnel bypasses steep gradients and sharp curves of the Western Ghats, reducing the travel time between Igatpuri and Kasara to around eight minutes. This has immensely enhanced safety, reliability and driving comfort on a previously congested and challenging stretch. The expressway connects seamlessly to the regional highway network via three major interchanges, at Igatpuri, Kutghar (Shahapur) and Amane (Thane), ensuring smooth traffic flow, efficient access, and stronger regional and intercity connectivity.
Safety measures
Safety remains paramount for the project. As a fully access-controlled expressway, entry and exit are restricted to designated interchanges, reducing accidents. Alongside, grade separation, service roads and over 300 pedestrian underpasses keep local traffic safely separated from high-speed vehicles.
Gentle curves, controlled gradients and wide medians enhance driving comfort, while the 7.8 km Kasara Ghat tunnel bypasses steep, accident-prone sections to significantly improve safety. Moreover, the Samruddhi Expressway, along with interchanges planned at 24 locations, will improve connectivity to several tourist destinations across the state. The key tourist spots that will gain connectivity are Shirdi, Bibi ka Maqbara, Pandavleni Caves, Sula Vineyards, Verul, Trimbakeshwar Shiv Temple, Daulatabad, Lonar, Ramtek, Daulatabad, Ajanta, Ramtek, Tansa Wildlife Sanctuary, Gautala Wildlife Sanctuary, Pench National Park, and Sevagram, among others.
The expressway is equipped with modern traffic management and monitoring systems, including surveillance cameras, emergency communication facilities and incident response mechanisms. Clear signage and lane markings enhance night-time and low-visibility driving, reinforcing the Samruddhi Expressway’s standards for safety on long-distance corridors.
Sustainablity measures
Environmental sustainability has been central to the project. A greenfield alignment has minimised disruption to urban and agricultural areas while enabling the integration of environmental safeguards into the design. To manage water resources and support natural hydrology, the expressway features extensive rainwater harvesting systems and scientific drainage designs. These systems capture and direct surface runoff into designated recharge zones, helping to replenish groundwater and reduce the risk of erosion or waterlogging along the corridor. As a distinct sustainability initiative, the project incorporates electric vehicle charging stations at strategic locations, and has plans to set up solar plants with a combined capacity of 47 MW.
Furthermore, compensatory afforestation, landscaping and wildlife crossings have been integrated to restore vegetation, protect biodiversity, and reduce habitat fragmentation along the corridor. These measures reflect a systematic effort to balance large-scale infrastructure development with environmental stewardship.
Navigating the way forward
With high-speed connectivity in place, the Samruddhi Mahamarg is positioned to evolve into a multi-utility economic corridor. The Maharashtra government has identified nearly 24 development nodes along the project for agri-processing parks, industrial estates, logistics hubs and other destinations. These nodes are expected to boost investment and employment, especially in districts such as Wardha, Washim and Jalna.
The expressway is designed as a shared infrastructure corridor with provisions for optical fibre, natural gas pipelines and electricity transmission, ensuring digital connectivity and reliable energy for industrial and logistics hubs. Strategically, the project also links Mumbai’s Jawaharlal Nehru Port Authority with Nagpur’s Multimodal Cargo Hub, strengthening national trade and logistics. Going forward, coordinated land-use planning and utility integration will be key to maximising impact, enabling the Samruddhi Expressway to anchor inclusive growth and set a benchmark for infrastructure-led regional development.
Aditi Gupta