M27

M27

Cadnam
to
Portsmouth

The M27 forms a bypass and distributor road for what amounts to a sizeable conurbation along the south coast in Hampshire, including Portsmouth, Gosport and Southampton.

Routes

M27 Southampton Junctions 31 October 2017

Improvements to M27 junction 8, the nearby Windhover Roundabout and 31 junctions on the A3024 between that point and the Six Dials junction in central Southampton, in addition to widening of the A3024 across two railway bridges. The scheme is highly unusual as it is being carried out by Highways England, who operate trunk roads, and at their expense, but the work will almost all take place on non-trunk local authority roads operated by Southampton City Council.

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M27 J4-11 Smart Motorway 24 October 2017

Upgrade of the existing M27 between junction 4 (the M3) and junction 11 (Fareham) to Smart Motorway. New technology and Emergency Areas will be installed to enable variable speed limits to operate, and the hard shoulder will be converted into a permanent running lane to provide four continuous lanes throughout this section. Smart Motorway upgrade works are also planned on the M3 between Winchester and Southampton, and the two schemes will connect at M27 junction 4.

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M27 J3 Improvement 15 October 2015

Work to improve the interchange where the M271 meets the M27 at junction 3, as part of the Government "Pinch Point Programme".

This scheme will include widening of the M27 westbound exit sliproad to three lanes, widening of the M271 northbound and southbound approaches to three lanes, and removal of the eastern overbridge hard shoulder to allow three lanes on that side of the roundabout.

The junction will also become fully signalised as a result.

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M27 Widening J3-4 31 January 2009

On-line widening of the M27 between junctions 3 and 4 (M271 to M3) to dual-four lane standard. It actually comes with a sister scheme, to add climbing lanes in both directions between J11 and J12, which was started in January 2008 and opened in September of that year.

Information recently released shows that the widening will involve narrowing the central reservation and will not involve the replacement of existing bridges.

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