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This article or section contains information about a structure currently under construction. It may contain information of a speculative nature, and the content may change dramatically and frequently as construction progresses and new information becomes available. |
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Hindhead Tunnel is a tunnel being built on the A3 road in Hindhead, Surrey, due for completion in 2011.[1] Advance works started in January 2007, and main construction works, including the tunnelling, started in 2008.[2] It forms part of a wider "Targeted Improvement Plan" to upgrade the final single carriageway section of the London to Portsmouth road to dual carriageway.[2] At 1.83 kilometres (1.14 miles)[3] the tunnel will be the longest non-estuarial road tunnel in the United Kingdom,[1] and is required to take the new road beneath the Devil's Punch Bowl, a Site of Special Scientific Interest.[1]
Twin tunnels have been bored from each end by excavating about a metre per day using diggers, then spraying the walls with concrete. On Thursday 26 February 2009, engineers met in the middle at the breakthrough point, joining the two tunnels together to form the 1.1 mile link[4]
See also
References
- ^ a b c Mott MacDonald. "Trunk road tunnel benefits environment and cuts journey times". http://www.tunnels.mottmac.com/projects/?mode=type&id=3402. Retrieved 2007-06-01.
- ^ a b Highways Agency. "A3 Hindhead Improvement". Department for Transport. http://www.highways.gov.uk/roads/projects/3832.aspx. Retrieved 2007-06-01.
- ^ Highways Agency. "A3 Hindhead Improvement - The Tunnel". Department for Transport. http://www.highways.gov.uk/roads/projects/3843.aspx. Retrieved 2009-05-27.
- ^ BBC news report of the breakthrough
External links
- Highways Agency project information
- The News (Portsmouth) - virtual experience of driving through the Hindhead Tunnel
- Government News Network (for Department for Transport). "£371 million A3 improvements will go ahead". Press release. http://www.gnn.gov.uk/environment/fullDetail.asp?ReleaseID=237687&NewsAreaID=2&NavigatedFromDepartment=False. Retrieved 2007-06-01.
- "Inside UK's largest tunnel dig". BBC South Today TV news report. 2008-08-21. http://news.bbc.co.uk/1/hi/uk/7573572.stm. Retrieved 2008-08-21.
Coordinates: 51°06′39″N 0°43′56″W / 51.1109°N 0.7322°W
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