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The M25 goes round Greater London from Dartford to Aveley. Contra to popular belief the M25 is not a full loop, but is broken by the Section from J30 to J2 across the Thames at Dartford which is a A Road, the A282, over the Dartford Crossing south bound (clockwise) and Through the Dartford tunnels North bound (Anticlockwise).

Junctions and service areasEdit

  • Junction 1A (on A282): Greenhithe, Dartford (north).
  • Junction 1B (on A282): Dartford.
  • Junction 2: (Start of Motorway)Gravesend, A2.
  • Junction 3: Swanley, M20.
  • Junction 4: Orpington, Bromley.
  • Junction 5: Sevenoaks, M26.
  • Clacket Lane service area.
  • Junction 6: Caterham.
  • Junction 7: M23.
  • Junction 8: Reigate, Redhill.
  • Junction 9: Leatherhead, Epsom.
  • Junction 10: Guildford, Woking, A3.
  • Junction 11: Chertsey.
  • Junction 12: M3.
  • Junction 13: Staines, Egham.
  • Junction 14: Heathrow Terminal 4.
  • Junction 15: Heathrow Airport, M4.
  • Junction 16: Uxbridge, M40.
  • Junction 17: Rickmansworth (south).
  • Junction 18: Amersham, Chorleywood, Rickmansworth.
  • Junction 19: Watford.
  • Junction 20: Hemel Hempstead, A41.
  • Junction 21: M1.
  • Junction 21A: St Albans.
  • Junction 22: London Colney.
  • Junction 23: Borehamwood, A1(M), South Mimms service area.
  • Junction 24: Potters Bar.
  • Junction 25: Enfield, Cheshunt, A10.
  • Section in a Tunnel
  • Junction 26: Waltham Abbey.
  • Section in a Tunnel
  • Junction 27: M11.
  • Junction 28: Brentwood, Romford, A12.
  • Junction 29: Romford, Basildon, Southend, A127.
  • Junction 30: (End of Motorway)(A282) South Ockendon, Tilbury, A13.
  • Junction 31: (is A282) Purfleet, Thurrock service area.

Notable Structures & JunctionsEdit

(add any Bridges or interchanges that are of note)

See alsoEdit


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