Maharashtra’s longest tunnel is an engineering marvel

26 Jul 2022 CW Team

The Mumbai-Nagpur Samruddhi Mahamarg has given Maharashtra its longest tunnel! Afcons recently completed the civil work of the 7.78-km twin tunnel. The company is constructing what is slated to be India’s widest and Maharashtra’s longest twin tunnels in the 701-km Maharashtra Samruddhi Mahamarg. It is part of Package 14, which will connect Pimpri Saroddin to Vashala Budruk. The total length of the project is 13.1 km, which includes two viaducts, twin tunnels of length 7.78 km and an interchange. The first viaduct is a simply supported I-girder bridge of 910m, and the second viaduct is a balanced cantilever box girder bridge of 1,295m,with a maximum height of 60m.

“The twin tunnelshave been executed with the New Austrian Tunnelling Method (NATM), which consists of a 70-m vertical shaft of 7m diameterand an inclined shaft of 504m,” shares Sekhar Das, Project Manager, PKG-14 - Maharashtra Samruddhi Mahamarg.“The entire carriageway will be completed using pavement quality concrete.”

CW takes a deep dive into various aspects of the project.

To read the full article, CLICK HERE

Building Material

11 Dec 2025

Suraj Estate Wins Euromoney Award for India’s Best Residential Developer

"Suraj Estate Developers Limited has received the Euromoney Real Estate Award 2025 for ‘India’s Best Residential Developer’, positioning the company among globally benchmarked leaders in the sector. The recognition reflects its four-decade legacy in delivering high-quality residential and redevelopment-led projects across South Central Mumbai. The Euromoney Real Estate Awards, presented by the London-based Euromoney magazine, are widely regarded as one of the most credible global assessments of performance in real estate, banking and finance. Winners are selected through surveys of inte..

Lloyds Metals, Tata Steel Sign MoU to Explore Strategic Collaboration

"Lloyds Metals and Energy Limited has signed a non-binding Memorandum of Understanding with Tata Steel Limited to evaluate potential areas of strategic cooperation across mining, logistics, pelletisation and steelmaking. The MoU was signed by B Prabhakaran, Managing Director of Lloyds Metals, and Mr T V Narendran, CEO and Managing Director of Tata Steel. The partnership framework aims to leverage the natural operational synergies between both companies and assess opportunities in greenfield steel projects, iron ore mining, slurry pipeline infrastructure, pellet manufacturing in iron ore–ric..

IndiaAI, Gujarat Govt Host Regional Conclave Ahead of 2026 AI Summit

The IndiaAI Mission under the Ministry of Electronics and Information Technology, along with the Government of Gujarat and IIT Gandhinagar, convened a Regional Pre-Summit Event at Mahatma Mandir, Gandhinagar. The initiative is part of the build-up to the India–AI Impact Summit 2026, scheduled for 15–20 February 2026 at Bharat Mandapam, New Delhi. The conclave brought together senior policymakers, technology leaders, researchers and industry practitioners to examine how AI can accelerate economic, digital and social transformation across sectors. The programme focused on the overarching th..