|Length:||25.0 mi (40.2 km)|
|Existed:||1972 – present|
J3 → M271 motorway
J4 → M3 motorway
J12 → M275 motorway
|Southampton, Fareham, Portsmouth, (Ringwood), (Bournemouth), (Salisbury), (Winchester), (Chichester), (Brighton)|
The M27 is a motorway in Hampshire, England. It is 25 miles (40 km) long and runs west-east from Cadnam to Portsmouth. It was opened in stages between 1975 and 1983. It is unfinished, as an extension to the east was planned. A number of smaller motorways were proposed, connecting the city centres of Southampton and Portsmouth to the motorway; of these only the M271 and M275 were built. Two sections of the M27 have since been widened to four lanes each way, the first between Junctions 7 and 8, and the second between Junctions 3 and 4.
Running approximately parallel both to the coast of the Solent and to the A27, the M27 starts as an eastwards continuation of the A31 from Bournemouth and Poole, meets the A36 from Salisbury, crosses the Wessex Main Line railway, and then meets the M271 to central Southampton. After the M271, the road becomes a dual four lane motorway and passes Rownhams services, it then meets the M3, (two lanes going off, two lanes continuing to the other side of the junction) reverting to a dual three lane motorway as it passes to the north of Southampton, passes Southampton Airport, meeting Junction 7 and becoming dual four lanes again, then becoming dual three lanes after Junction 8, it then runs alongside the West Coastway Line as it heads south-east towards Fareham. It then runs alongside the northern outskirts of Fareham, briefly with a fourth climbing lane in either direction, before its junction with the M275 to Portsmouth. Very shortly after this point the motorway ends, becoming the A27, a four lane dual carriageway almost to motorway standards until the junction with the A3 (M) Motorway. The official reason for this section of road not being a continuation of the motorway is the hard shoulders being too narrow. Although the M275 which the M27 junctions with, has no official hard shoulders throughout its entire length.
The M27 was opened in stages (in common with many UK motorways) between 1975 and 1983.
- Junction 1 to 2 opened 20 August 1975
- Junction 2 to 4 opened in December 1975
- Junction 4 to 7 opened in 1983
- Junction 7 to 8 opened in February 1978
- Junction 8 to 12 opened in March 1976
The South Stoneham Crematorium, which was located north of South Stoneham Cemetery, was demolished during 1973 to make way for the construction of the M27 motorway. The South Stoneham garden of remembrance is now located at the north end of the cemetery, adjacent to the motorway.
It has been said that the M27 was intended as a motorway connecting south coast towns from Penzance to Ramsgate. However the only proposal of a route similar to that was by the Institution of Highway Engineers in 1936. Road developments in the New Forest are also restricted due to its National Park status.
The M27 was meant to be extended to Chichester; a sign of this is the width of the A27 road between Junction 12 and the junction with the A3(M), which has 3/4 lanes, a hard shoulder and grade-separated junctions. It is not part of the M27 as its hard shoulders are not quite wide enough to comply with motorway regulations.
The M272 was meant to go from Junction 5 through Portswood to the centre of Southampton. The M272 was instead built (in much reduced form) as the A335 Thomas Lewis Way.
Data from driver location signs are used to provide distance and carriageway identifier information. Where a junction spans several hundred metres and start and end points are available, both are cited.
|M27 motorway junctions|
|miles||km||Westbound exits (B carriageway)||Junction||Eastbound exits (A carriageway)||Coordinates|
|Road continues as A31 to The WEST, Poole, Dorchester, Bournemouth and Ringwood||Terminus
|Cadnam A336, Brook, Bramshaw B3079, Lyndhurst A337
|The New Forest, Cadnam, Lyndhurst A337
||Start of motorway|
|Salisbury A36, Fawley A326||J2||Salisbury, Romsey A36, Fawley A326, Paultons Park|
|Southampton, The Docks M271(S), Romsey M271(N)||J3||Southampton, The Docks M271|
|Rownhams Services (Roadchef)||Services||Rownhams Services (Roadchef)|
|The MIDLANDS, London, Winchester M3||J4||The MIDLANDS, London, Winchester M3|
|Southampton, Eastleigh, Airport A335||J5||Southampton, Eastleigh, Airport A335|
|No connection||J6||Planned junction for the unbuilt M273|
|Hedge End A334||J7||Hedge End, Botley A334|
|Southampton, Hamble, East Docks A3024||J8||Southampton (E), Hamble A3024|
|Fareham (W) A27, Whiteley||J9||Fareham (W) A27, Whiteley|
|Alton A32||J10||No exit|
|Fareham (C) A27, Gosport (A32)||J11||Fareham (C) A27, Gosport (A32)|
|Portsmouth, Ferries M275||J12||Cosham, Paulsgrove, Hilsea A27, Portsmouth (W), Ferries M275|
|29.0||46.6||Start of motorway||Terminus||No exit, access to A3 via J12|
|Cosham A3(N), Hilsea A3(S)||Road continues as A27 to Havant, Portsmouth (E), Brighton and London (A3(M))|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
Junction 1 is about 1,800 metres (2,000 yd) (2,400 metres (2,600 yd) by road) from The Rufus Stone, where King William II, also known as William Rufus, was killed in what may have been a hunting accident in 1100.
- "M27 Portsmouth-Chichester". Pathetic Motorways.
- "Overall plans for the city". Retrieved 27 January 2007.
- "M27 – The South Coast Motorway and A3(M) Statistics and options". The Motorway Archive Trust. Retrieved 27 January 2007.
- "South Stoneham Cemetery". Southampton City Council. 13 November 2009. Retrieved 16 November 2009.
- Marshall, Chris; Le Poidevin, Nigel; McGuire, Dave; Denson, James; Steve; Clive. "CBRD Motorway Database – M27". Retrieved 30 September 2008.
- "Appendix A". The post war development of highways. Institution of Highway Engineers. 1943.
- Charlesworth, George (1984). "2". A history of British Motorways. London EC1: Thomas Telford Ltd. ISBN 978-0-7277-0159-6.
- "M27 – The South Coast Motorway, M271, M275 and A3(M)". Retrieved 25 January 2007.
The land acquired for this stretch of the motorway was not quite wide enough – by less than a foot – and the Chief Highway Engineer of the day, quite rightly if a little pedantically, ruled that it didn’t conform to motorway standards and must therefore be an all-purpose trunk road.
- "Meon Valley". Motorway services online. Retrieved 28 October 2009.
- Area 3 Driver Location Signs (map) – Highway Authority, 2009
- As measured on Google Maps