:''
M3 is also the name of the motorway that connects the capitals of two largest states in Europe,
Moscow and
Kiev.''
:''There are also M3 motorways in
Northern Ireland, in the
Republic of Ireland and in
Hungary.''
The 'M3 motorway' is a
motorway in
Hampshire and
Surrey,
England. It runs from
Sunbury-on-Thames to
Southampton and is approximately 59
miles (94
km) long. The motorway was built to relieve traffic on the
A30 and
A33, the congested single carriageway trunk roads that previously carried the traffic. Part of this motorway forms a section of
European route E5 — these are not signed in the
United Kingdom.
Route
The motorway starts as a dual three lane route at Sunbury on Thames on the edge of South West
London. It heads south west to the north of
Chertsey and passes under the
M25 motorway, before continuing in a more westerly direction south of
Camberley. From junction 4 it runs across the northern
suburbs of
Farnborough it enters a more
rural setting, crosses the
South Western Railway Main Line passes close to the
Basingstoke Canal before reaching the outskirts of
Basingstoke. Turning south west again, it runs across the south of Basingstoke, before reaching junction 8, where lane 1 becomes the
A303 road and the motorway continues as a dual two lane road through open
countryside and
Micheldever Wood until it reaches the north of
Winchester.
Forming the ''Winchester Bypass'' it widens to 3 lanes at junction 9, continues directly south and then into a small loop around the east of the City. It runs through a deep cutting in
Twyford Down and then proceeds south west again, crossing the South Western Railway Main Line a second time alongside the
River Itchen and back into a more
urban environment before crossing the
Eastleigh to Romsey railway line and ending at the Chilworth Roundabout on the fringes of Southampton.
History
Construction of the M3 started in
1971, and was completed in stages until
1995. The opening dates, going from north east to south west, are as follows:
[1]
★ Junction 1 to Junction 3 opened in
1974.
★ Junction 3 to junction 8 opened in 1971.
:An additional junction, numbered 4a, opened in April
1992 near Farnborough
[2]
★ Junction 8 to Junction 10 opened in
1985.
:The original terminus of the M3 was with a temporary junction near junction 8 that fed directly into the A33 at Popham, built in 1971. When the M3 was extended to junction 10 in 1985, this temporary junction was removed.
★ Junction 10 to Junction 12 opened in 1995.
:This section was constructed partly on the original route of the A33.
★ Junction 12 to Junction 14 was designated as motorway in
1992.
:The section from just south of Junction 11 to Junction 14 was constructed using the alignment of a section of the
A33 road originally built in
1967. This was upgraded to motorway standards in
1991, although not formally designated a motorway until the completion of the section from Junction 10 around Winchester (see below). The westbound
M27 motorway link was completed in 1975 and the eastbound link in
1986. The road was upgraded to motorway in 1992, but only as far as a temporary junction at
Compton, south of the present-day junction 11. This temporary junction was removed when the final section of M3 between this and junction 10 was completed in 1995.
Twyford Down
:''See main article:
Twyford Down''

The M3 under construction at Twyford Down
Following completion of the route to north and south of Winchester, there was a gap in the motorway around Winchester. This section of the journey had to be completed on the A33 road, which suffered congestion and had junctions directly onto the mainline (unlike motorways which have grade separated junctions). The route ran to the west of Twyford Down. The
Department for Transport wanted to complete the route, however they had difficulty setting a route due to several sites including
St Catherine's Hill, an
Iron Age fort being of historical or environmental interest. Twyford down was a
site of special scientific interest and was afforded some protection under
European Union regulations. Following an evaluation, the route was moved from the west to the east of St Catherine's Hill.
2 A tunnel design was proposed, but this was not proceeded with and the route was placed in a cutting. During construction there were extensive protests by local people and
environmental activists. Despite petitions to the
High Court by, amongst others,
Greenpeace and
Friends of the Earth contesting the legality of the construction, and an instruction by
Carlo Ripa di Meana the
European Environmental Commissioner to stop the project, the route was completed and opened to traffic between junctions 10 and 12. The A33 route, that ran east of Twyford Down, was removed and was opened in public land. Around 1.9
hectares of land was lost on Twyford down, but over 7 hectares was added as open space.
[3] Reportedly some people still refuse to drive on it.
[4]
Junctions
| 'M3 Motorway' |
| Northeastbound exits | Junction | Southwestbound exits |
| ''Road continues as 'A316' to London'' | J1 | Sunbury, Kingston 'A308' |
| Sunbury, Kingston 'A308' | ''Start of Motorway'' |
Gatwick ('M23'), Dartford ('M20') The NORTH ('M1'), Heathrow ('M4'), Chertsey ('A320'), Staines ('A30') 'M25' | J2 | Gatwick ('M23'), Dartford ('M20') The NORTH ('M1'), Heathrow ('M4'), Chertsey ('A320'), Staines ('A30') 'M25' |
| Woking, Bracknell, Lightwater 'A322' | J3 | Woking, Bracknell, Lightwater 'A322' |
Guildford, Farnham, Camberley, Farnborough, Aldershot 'A331' | J4 | Guildford, Farnham, Camberley, Farnborough, Aldershot 'A331' |
Farnborough (West) 'A327' Fleet '(A3013)' | J4a | Farnborough (West) 'A327' Fleet '(A3013)' |
| ''Fleet services'' |
| Hook 'A287 (B3349)' | J5 | Hook 'A287 (B3349)' |
Basingstoke, Newbury, Alton 'A339' Reading '(A33)' | J6 | Basingstoke, Newbury, Alton 'A339' |
| Basingstoke 'A30' | J7 | Basingstoke 'A30' |
| ''No exit'' | J8 | The SOUTH WEST, Andover, Salisbury 'A303' |
| ''Winchester services'' | ||
The MIDLANDS, Newbury 'A34', Winchester North | J9 | Winchester '(B3330)' |
Winchester (City) 'B3330' Alton 'A31' | J10 | ''No exit'' |
Winchester 'B3335' Romsey 'A3090' | J11 | Winchester 'A3090' Twyford 'B3335' |
| Eastleigh and Chandler's Ford (North) 'A335' | J12 | Eastleigh and Chandler's Ford (North) 'A335' |
| Eastleigh and Chandler's Ford (South) 'A335' | J13 | Eastleigh and Chandler's Ford (South) 'A335' Southampton (East), Airport, Fareham, Portsmouth 'M27' Southampton 'A33' |
''Start of Motorway'' ''No exit'' | J14 | Southampton (West), The Docks, Romsey, Ringwood, Bournemouth 'M27' Southampton 'A33' |
Trivia
★ It is rumoured that the original negatives of the full-length cut of the film ''
The Wicker Man'' are buried under the M3 after being used as part of a landfill.
[1]
★ On 1 April, 2000, Pranksters painted a zebra crossing across three lanes of the M3 between junctions 4 and 4A on the northbound carriageway near Farnborough in Hampshire.
[2]
★ The
A325 has a
roundabout junction with a minor road over the M3 between junctions 3 and 4, but there is no junction with the motorway.
See also
★
List of motorways in the United Kingdom
References
1. The Motorway Archive — M3 Dates
2. Highways Agency — M3 London to Southampton Route Management Strategy.
3. Engineering Design for Sustainable Development — Taming The Tarmac: The Lesson of Twyford Down
4. CBRD Motorway Database — M3
External links
★ CBRD
★
★
Motorway Database — M3
★
★
Bad Junctions — M3/A31
★
The Motorway Archive — M3