Blogs - World's longest bridges - construction of a bridge

Getting from A to B: The World’s Longest Steel Bridges

Railways make up one of the key forms of public transport in the UK, providing a vital service to help passengers get to work on time and stay connected with friends and relatives across the country.

One of the most complex elements of steel engineering involved in the railway system is the design and construction of bridges. This involves a consideration of many changeable factors, including choosing appropriate foundations, noting the flow and strength of the river below, and ensuring that the embankments are strong on either side.

Read on for an overview of some of the longest steel arch bridges in the world, feats of engineering and fabrication excellence.

Bayonne Bridge

The Bayonne Bridge is in New York City, USA. This bridge connects Bayonne in New Jersey with Staten Island, and when it was completed in 1931 it was the longest bridge in the world, reaching a length of 1762 m, or 5780 feet.

Sydney Harbour Bridge

This bridge spans Sydney Harbour, and reaches from the central business district to the North Shore, measuring 1149 m, or 3770 ft. The bridge, alongside the harbour and the Sydney Opera House, creates one of the most iconic images of the Australian city.

Chaotianmen Bridge

This railroad bridge in China crosses the Yangtze River in the city of Chongqing, and supports six lanes of vehicles. It measures 1741 m, or 5712 ft in length, and was first opened to traffic in 2009. The lower deck of the bridge incorporates the busy Chongqing Metro Loop Line.

Silver Jubilee Bridge

Crossing the River Mersey between Runcorn and Widnes, this is the longest steel arch bridge in the UK, with a length of 482 m, or 1581 ft. First opened in 1961, the bridge was officially named after the Queen’s Silver Jubilee when its carriageway was widened.

Chenab Rail Bridge

This bridge in India spans the Chenab River, and is the world’s highest rail bridge, reaching 359 m above the river. It is also 1315 m, or 4314 ft in length. The bridge crosses between Bakkal and Kauri, located near the main town of the Reasi district of Jammu and Kashmir.

Staffordshire Fabrications and HS2

The construction of HS2 will eventually result in the UK’s newest and longest steel railway bridge. Named the Colne Valley Viaduct, this structure will cross a series of lakes and waterways that are situated between Hillingdon and the M25.

Staffordshire Fabrications is currently a direct and indirect steel fabrication supplier working towards the completion of HS2, as well as working more broadly with Network Rail.

We offer a range of fabrication services across multiple sectors, including boat manufacturing and CNC turning services. Contact us today for more information about our customer-focused and high-quality work.