M3 motorway (Great Britain)
The M3 is a motorway between Sunbury-on-Thames and Southampton in England. It links London with Southampton and Portsmouth, as well as South West England. It is about 59 miles (95 km) long.
M3 motorway | ||||
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Route information | ||||
Part of | ||||
Maintained by Highways England | ||||
Length | 58.6 mi (94.3 km) | |||
Existed | 1971–present | |||
History | Opened: 1971 Completed: 1995 | |||
Major junctions | ||||
Northeast end | Sunbury-on-Thames 51°25′00″N 0°25′26″W / 51.4166°N 0.4240°W | |||
J2 → M25 motorway J14 → M27 motorway | ||||
Southwest end | Chilworth 50°57′16″N 1°24′29″W / 50.9545°N 1.4081°W | |||
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Road network | ||||
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Junctions
M3 motorway junctions | ||||
miles | km | North-east bound exits (B carriageway) | Junction | South-west bound exits (A carriageway) |
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15.0 | 24.2 | Road continues as A316 to London | J1 | Sunbury, Kingston A308 Non-motorway traffic |
15.3 | 24.6 | Sunbury, Kingston A308 | Start of motorway | |
21.3 | 34.2 | Gatwick Heathrow – M25 (M23), (M4) | J2 | Gatwick, Heathrow (M23, M4) M25 |
28.1 | 45.2 | Woking, Bracknell, Camberley, Bagshot, Lightwater A322 | J3 | Woking, Camberley, Bracknell, Bagshot, Lightwater A322 |
32.6 | 52.5 | Guildford, Farnham, Camberley, Farnborough, Aldershot A331 | J4 | Guildford, Farnham, Camberley, Farnborough, Aldershot A331 |
34.4 | 55.4 | Fleet (A3013), Farnborough (West) A327 | J4a | Fleet (A3013), Farnborough (West) A327 |
Fleet services (Welcome Break) | Services | Fleet services (Welcome Break) | ||
41.9 | 67.4 | Hook A287 B3349 | J5 | Hook A287 B3349 |
46.6 | 75.0 | Basingstoke, Reading (A33), Alton A339 |
J6 | Basingstoke, Newbury, Reading, Alton A339 |
51.8 | 83.3 | Basingstoke A30 | J7 | Basingstoke A30 |
53.1 | 85.5 | No access | J8 | The South West, Andover, Salisbury, Exeter A303 |
59.9 | 96.4 | Winchester services (Moto) | Services | Winchester services (Moto) |
63.9 | 102.8 | The Midlands, Newbury A34 trunk road Winchester A272, Alresford A31 |
J9 | The Midlands, Newbury A34 trunk road Winchester A272 |
65.2 | 105.0 | Winchester (City) B3330 Alton, Alresford A31 |
J10 | No access |
67.2 | 108.1 | Winchester A3090 Twyford B3335 |
J11 | Winchester A3090 Twyford B3335 |
70.0 | 112.6 | Eastleigh (North) A335 | J12 | Eastleigh (North), Chandler's Ford A335 |
71.8 | 115.6 | Eastleigh, Chandler's Ford A335 | J13 | Bournemouth M27(W) Eastleigh A335 |
Start of motorway | J14 | Southampton , Portsmouth M27(E) The West, Southampton Docks, Southampton A33 | ||
Notes
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1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
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M3 Motorway (Great Britain) Media
M3 motorway at East Stratton
Southern end of the M3 meeting the A33 at Southampton
M3 motorway at Fleet