M27 motorway

M27 shield
M27
Map
M27 highlighted in blue
Route information
Maintained by National Highways
Length27.9 mi (44.9 km)
Existed1972–present
HistoryConstructed 1972–83
Major junctions
West endCadnam
50°55′06″N 1°35′35″W / 50.9182°N 1.5930°W / 50.9182; -1.5930 (M27 motorway (western end))
Major intersections
J3 → M271 motorway

J4 → M3 motorway

J12 → M275 motorway
East endPortsmouth
50°50′12″N 1°03′54″W / 50.8366°N 1.0650°W / 50.8366; -1.0650 (M27 motorway (eastern end))
Location
CountryUnited Kingdom
Primary
destinations
Southampton, Fareham, Portsmouth, (Ringwood), (Bournemouth), (Poole), (Salisbury), (Winchester), (Chichester), (Brighton)
Road network
M26 M32
Looking down onto the M27 from Portsdown Hill
M27 Between junctions 5 and 7 (there is no junction 6)

The M27 is a motorway in Hampshire, England. It is 27.9 miles (44.9 km) long and runs between Cadnam and Portsmouth. It was opened in stages between 1975 and 1983, providing the largest two urban areas in Hampshire (Southampton and Portsmouth) with a direct motorway link. An extension into the county of West Sussex was planned but never constructed.[citation needed] A number of smaller motorways were proposed, connecting the city centres of Southampton and Portsmouth to the motorway;[1] of these only the M271 and M275 were built. Three sections of the M27 have since been widened to four lanes each way, the first between junctions 7 and 8, the second between junctions 3 and 4, and the third begins at the slip road where junction 11 joins until mid-way to junction 12.

  1. ^ "Overall plans for the city". Retrieved 27 January 2007.[permanent dead link]