12 Jan 2024

India's Longest Sea Bridge Atal Setu inaugurated by PM Modi; know what makes this bridge an engineering marvel?

Prime Minister Narendra Modi officially opened the Mumbai Trans Harbour Link, also known as Atal Setu, in Navi Mumbai on Friday. The 21.8 km-long bridge, considered India's longest sea bridge, connects Mumbai to the satellite city of Navi Mumbai. The bridge significantly reduces the travel time from Mumbai to Navi Mumbai to just 20 minutes from the current travel time of nearly two hours. Present at the inauguration were Maharashtra CM Eknath Shinde and other dignitaries.

Atal Setu, spanning 21.8 km with six lanes, includes a remarkable 16.5 km over the sea and 5.5 km on land. It is set to enhance connectivity with key locations such as the proposed Navi Mumbai International Airport, JNPT Port, Mumbai–Pune Expressway, and Mumbai–Goa Highway.

The Mumbai Trans Harbour Link promises substantial benefits for daily commuters, transforming the commute time between Mumbai and Navi Mumbai from two hours to just 20 minutes. Scheduled for public use from January 13, the bridge aligns with the government's commitment to improving infrastructure and connectivity.

Cutting-Edge Technology at Atal Setu

Atal Setu has set a precedent by successfully implementing cutting-edge, modern technology. Featuring an orthotropic steel deck, noise silencers, sound barriers, and an earthquake resistance system, the bridge incorporates state-of-the-art technology for minimal vibrations and environmental impact. Debris Management has been installed to ensure waste does not affect marine life, while India's most intelligent traffic management system enhances efficiency.

Eco-Friendly Lighting and Technological Advancements

The lights used in Atal Setu have been designed to not disturb the aquatic environment, employing several technologies used for the first time in India. Experts hail the bridge as an "engineering marvel," particularly recognizing its 16.5 km stretch over the sea.

Structural Marvel and Economic Impact

The Metropolitan Commissioner of MMRDA, Sanjay Mukherjee, highlighted the bridge's features, noting that the steel used in its construction is 17 times that of the Eiffel Tower. Anticipated to witness daily traffic from around 70,000 vehicles, the Atal Setu, with a total cost exceeding Rs 17,840 crore, is the 12th longest sea bridge globally. Construction began in 2016, and its completion underscores a significant milestone in India's infrastructure development.

In addition to the inauguration of Atal Setu, PM Modi also laid the foundation stones for projects worth Rs 12,700 crore in the Mumbai Metropolitan Region, further reinforcing the region's connectivity and economic growth.

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