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The Chiltern Tunnel is a high-speed railway tunnel currently under construction in Buckinghamshire and Hertfordshire, England, and will upon completion carry the High Speed 2 (HS2) railway line under the Chiltern Hills. The twin-bore tunnels, which are 16.04 km (9.97 miles) long, [1] will be the longest on the HS2 line. [2] Each tunnel will ...
High Speed 2 (HS2) is a high-speed railway which has been under construction in England since 2019. The line's planned route is between Handsacre, in southern Staffordshire, and London, with a branch to Birmingham. HS2 is to be Britain's second purpose-built high-speed railway after High Speed 1, which connects London to the Channel Tunnel.
The government is rethinking plans for part of Britain’s biggest rail infrastructure project, much delayed and well over budget
The key revisions included a new 4.3 km (2.7 mi) tunnel at South Ruislip avoiding the Chiltern Line and mitigating the impact in the Ruislip area; realignment of the route and extension of the continuous tunnel, originally from the M25 to Amersham, to near Little Missenden; at Wendover and nearby South Heath extension to the green tunnels to ...
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HS2 Ltd said a pair of tunnel-boring machines have each made five miles of progress on their 10-mile journeys under the Chiltern Hills. HS2’s longest tunnel reaches halfway point Skip to main ...
HS2 was to pass through Staffordshire and Cheshire, in a tunnel under Crewe station but not stopping at Crewe railway station. [4] However, the HS2 line was to be linked to the West Coast Main Line via a grade-separated junction just south of Crewe, enabling "classic compatible" trains exiting the high-speed line to call at the existing Crewe ...
Various means for High Speed 2 to traverse the valley of the River Colne were considered. One option which was studied as an alternative to using a viaduct was the extension of the nearby Northolt tunnel, which was also being built for the new line, however this option was dismissed in a report released in February 2015 due to the increased costs and construction time that would be involved. [5]