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Boreham Interchange

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Boreham Interchange
Location Map ( geo)
A12 Chelmsford Bypass - Coppermine - 7631.JPG
Roundabout sign on the Boreham Interchange
Cameraicon.png View gallery (6)
Highway Authority
National Highways
Junction Type
modified dumbbell
Roads Joined
A12, A131, A138, B1137
Junctions related to the A138
Junctions related to the B1137

Boreham Interchange is junction 19 of the A12.

The interchange was created when the most recent Chelmsford bypass was tied in to the Boreham bypass. However, the original proposal differed to what was eventually built. The decision to build a new bypass resulted from the outcome of a public consultation held in 1973 where the strongest support was for a route to the south of the town compared to the other options of upgrading the existing 1930s bypass and a northern bypass. Firm proposals were published in 1974 and draft orders were made. The scheme consisted of two separate junctions - a fork junction where the new and existing bypasses meet and a roundabout interchange for the B1137. An alternative design shows the roundabout interchange replaced with a diamond interchange. The scheme went to public inquiry in 1975 where the inspector recommended that the existing bypass should be upgraded instead. Design work stopped on the southern bypass as the government accepted the outcome of the public inquiry. This was short lived as the plan reverted back to the southern bypass in 1979 and the scheme was drawn from scratch with new junction layouts. This opened in 1986 with the dumbbell layout as we know it.

Map of Boreham interchange prior to 2021 works

In 2021 it is planned to modify the junction to improve capacity and create space for the tie-in of the A130/Chelmsford North East Bypass scheme[1]; this will:

  • Create a cut-through on the eastern dumbbell roundabout (known as Generals Farm Roundabout) for traffic leaving the A12 southbound to head towards Chelmsford.
  • Move the western dumbbell roundabout (known as Generals Lane Roundabout) slightly to the west
  • Increase capacities on approaches


Route To Notes


London, Basildon, Southend (A130)


Colchester, Harwich (A120), Felixstowe (A14)


Stansted Airport, Sudbury, Braintree


Stansted Airport, Sudbury, Braintree, Springfield, Hospital, Chelmsford Business Park


Chelmsford, Harlow (A414)




Springfield, Hospital, Chelmsford Business Park former A130
Services, Phone 200 yds
Chelmsford Car Auctions, Recycling Centre for Household Waste
Springfield Business Park



Boreham Interchange
Related Pictures
View gallery (6)
A12 Chelmsford Bypass - Coppermine - 7629.JPGA12 Chelmsford Bypass - Coppermine - 7633.JPGBoreham.pngBoreham Interchange diamond.pngBoreham Interchange 1974 proposal.png
Other nearby junctions
Junctions on the A12, A102 and A127
A102Sun in the Sands • Woolwich Road • Blackwall Lane • South Bromley
A12South Bromley • Bow • Hackney Wick • Lea • Green Man • Redbridge • Gants Hill • Little Heath • Moby Dick • Gallows Corner • 11 Brook Street • 12 Marylands • 13 Trueloves • 14 Furze Hill • 15 Webbs Farm • 16 Howe Green • 17 Stock Road • 18 Sandon • 19 Boreham • 20A Hatfield Peverel South • 20B Hatfield Peverel North • 21 Lynfield Motors • 22 Colemans • 23 Kelvedon South • 24 Kelvedon North • 25 Marks Tey • 26 Eight Ash Green • 27 Spring Lane • 28 Severalls • 29 Ardleigh Crown • 30 Stratford St Mary • Hughes Corner • 31 Four Sisters • 32A Capel St Mary South • 32B Bentley Longwood • 33 Copdock • Barrack Corner • A14 (56) Wherstead • A14 (57) Nacton • A14 (58) Seven Hills • Foxhall Roundabout • Station Square • Gordon Road Roundabout • St Peters Street Roundabout • Jubilee Way Roundabout • Tesco Roundabout • Rackhams Corner • Station Road Roundabout • Links Road Roundabout • Middleton Road Roundabout • Victoria Road Roundabout • Beccles Road Junction • Harfreys Roundabout • Pasteur Road Roundabout • Vauxhall Roundabout
A127Gallows Corner • Cranham • Warley • Halfway House • Dunton • Fortune of War • Upper Mayne • Nevendon • Fairglen • Rayleigh Weir • Kent Elms • Tesco Roundabout • Bell Junction • Cuckoo Corner • Victoria Circus
Junctions on the A13 and related routes
A13Aldgate • South Bromley • Leamouth • Canning Town • Prince Regent • Beckton Alps • Beckton Roundabout • Movers Lane • Lodge Avenue • Goresbrook • Marsh Way • Ferry Lane • Wennington • Mar Dyke • Lakeside • Stifford • Baker Street • Orsett Cock • Manorway • Five Bells • Pitsea • Sadlers Farm • Victoria Circus • Bournes Green Roundabout • Parsons Corner
A1203 & A1261Tower Hill • Westferry Road • Prestons Road • Leamouth
A1089Baker Street • Marshfoot • Asda Roundabout
A130Sadlers Farm • Rayleigh Spur Roundabout • Rettendon Turnpike • Howe Green • Sandon • Boreham • Nabbotts Farm Roundabout • Sheepcotes Roundabout

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