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Alconbury North Interchange

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Alconbury North Interchange
Location Map ( geo)
Alconbury North Interchange.jpg
Cameraicon.png View gallery (6)
Location
Alconbury
County
Huntingdonshire
Highway Authority
Highways England
Junction Type
Fork
Opening Date
1957
Roads Joined
A1(M), (A1307)

Alconbury North Interchange is junction 14 of the A1(M).

For many years, this junction is where traffic that wants East London turns off the A1 - for a long time this was via the Old North Road (the A14 (Royston to Alconbury) and A10, and then via the A604/A14 and M11. It was also the furthest north that The City was signed (as London (City & West) A1(M)). However, since the opening of the Huntingdon to Cambridge Improvement, all long distance traffic is now signed further south to Brampton Hut interchange.

History

The junction layout on the 1971 OS One Inch map
...and under construction on the 1964 OS One Inch map
Whilst in 1960, the junction location was simply a kink in the A14

The junction is positioned broadly on the line of the historic Ermine Street. The modern B1043 is a close approximation to the route that road took. This road was designated A14.

When the A1 was given a bypass of Alconbury in 1957, this new dual carriageway used part of the route of that existing A14. Near Alconbury Weston, the A1 continued south on a totally new route while the A14 headed off east as it always had done. The interchange between the two was built as a standard Trumpet Interchange. The loop would be considered tight by modern standards but not by the standards of the time, while the southbound offslip took a much gentler alignment.

In the mid-1970s the A14 was upgraded to a dual carriageway, but the junction remained how it was. The flyover was still single carriageway and the new alignment used part of the southbound onslip, making that appear shorter and tighter.

The A14 was designated A604 and the northbound offslip - the main part of the loop - was closed. It was poorly aligned and had been rendered redundant by improvements to Thrapston Road near Brampton Hut. The other sliproads remained.

In 1998 the new A1(M) and A604(M) (since re-numbered) opened. This replaced the remains of the trumpet with a well-aligned fork: despite the simpler layout, it's much larger than the old trumpet. The old southbound onslip can still just about be made out, while no evidence remains of the loop, which would have been immediately south of the modern-day flyover.

Routes

Route To Notes

A1(M)

The NORTH, Peterboro', Stamford

A1(M)

London (City & West) Furthest north that The City is signed.

A1307

London (East), Huntingdon, Cambridge, Stansted Airport

A14(M)

London (East), Huntingdon, Cambridge, Stansted Airport

A604(M)

London (East), Huntingdon, Cambridge, Stansted Airport

Strip Maps


Links

Grid References



Alconbury North Interchange
Related Pictures
View gallery (6)
Alconbury North Interchange.jpgAlconbury Diverge.jpgA1(M) - Coppermine - 7353.jpgA1(M) - Coppermine - 7355.jpgAlconbury North Interchange 2020.png
Junctions on the A1/A1(M)
London - PeterboroughSt Paul's • Angel • Highbury Corner • Nags Head • Archway • Henlys Corner • Fiveways Corner • Mill Hill Circus • Apex Corner • Stirling Corner • Borehamwood • 1 Bignells Corner • 2 Roestock • 3 Roehyde • 4 Oldings Corner • 5 Lemsford • 6 The Clock • 7 Langley Sidings • 8 Coreys Mill • 9 Letchworth Gate • 10 Stotfold • Langford & Edworth Turns • Biggleswade South • Biggleswade North • Sandy • Black Cat • Wyboston • Hail Weston • Little Paxton • Buckden Roundabout • Brampton • Brampton Hut • Alconbury South • 14 Alconbury North • 15 Sawtry • 16 Norman Cross • 17 Fletton Parkway
Peterborough - Scotch Corner17 Fletton Parkway • Wansford • Carpenters Lodge • Wothorpe • Tinwell • Stamford • Tickencote • Bloody Oaks • Stretton • Colsterworth • Bridge End • Little Ponton • Spittlegate • Harlaxton Road • Barrowby • Gonerby Moor • Balderton • Coddington • Winthorpe • North Muskham • Carlton-on-Trent • Tuxford • Markham Moor • Twyford Bridge • Elkesley Junction • Apleyhead • Ranby • Blyth Flyover • 34 Blyth • 35 Wadworth Viaduct • 36 Warmsworth • 37 Ducker Holt • 38 Redhouse • Barnsdale Bar • 40 Darrington • 41 Holmfield • 42 Selby Fork • 43 Hook Moor • 44 Bramham • 45 Grange Moor • 46 Kirk Deighton • 47 Allerton Park • 48 Aldborough Gate • 49 Dishforth • 50 Baldersby • 51 Leeming • Catterick South • 52 Catterick Central • Catterick North • Scotch Corner • 56 Barton
Scotch Corner - Edinburgh56 Barton • 57 Blackwell Spur • 58 Burtree • 59 Aycliffe • 60 Bradbury • 61 Bowburn • 62 Carrville • 63 Blind Lane • 64 Vigo • 65 Birtley • 66 Eighton Lodge • 67 Coalhouse • 68 Lobley Hill • 69 Gateshead Quays • 70 Dunston • 71 Metro Centre • 72 Swalwell • 73 Derwenthaugh • 74 Scotswood • 75 Denton Burn • 76 Westerhope • 77 Kenton Bar • 78 Fawdon • 79 North Brunton • 80 Seaton Burn • Shotton Lane • Stannington • Clifton • St. Leonards • Fair Moor • Warreners House • Alnwick • Denwick • Charlton Mires • Chatton • Belford Station • Fenwick • Oxford • Scremerston Roundabout • East Ord Roundabout • Duddo • Duns Road • Highfields Roundabout • Cockburnspath Roundabout • Innerwick • Broxburn • Spott Roundabout • Thistly Cross Roundabout • Abbotsview • Oaktree • Gladsmuir • Bankton • Dolphinstone • Wallyford • Old Craighall • Newcraighall • Milton Link • East End
Junctions on the A14
Catthorpe -
Brampton
Catthorpe • 1 Naseby • 2 Kelmarsh • 3 Orton • 4 Junction 4 • 5 Rothwell Lodge • 6 Rothwell Grange • 7 Glebe Farm • 8 Broughton • 9 Wicksteed Park • 10 Junction 10 • 10A Junction 10A • 11 Junction 11 • 12 Junction 12 • 13 Thrapston • 14 Junction 14 • 15 Bythorn • 16 Fox Road • 17 Leighton Bromswold • 18 Spaldwick • 19 Easton • 19A Woolley • 20 Ellington
Brampton -
Cambridge
21 New Ellington • 22 Brampton • 23 Ermine Street • 24 Swavesey • 25 Bar Hill • 26 Girton
Cambridge -
Felixstowe
32 Histon • 33 Milton • 34 Fen Ditton • 35 Quy • 36 Nine Mile Hill • 37 Exning • 38 Waterhall • 39 Kentford • 40 Higham • 41 Risby • 42 Westley • 43 St Saviours • 44 Moreton Hall • 45 Rookery Crossroads • 46 Beyton • 47 Woolpit • 47A Elmswell • 48 Quarries Cross • 49 Tot Hill • 50 Cedars • 51 Beacon Hill • 52 Claydon Roundabout • 53 Whitehouse • 54 Sproughton • 55 Copdock • 56 Wherstead • 57 Nacton • 58 Seven Hills • 59 Trimley • 60 Dock Spur Roundabout • 61 Port of Felixstowe • 62 Dock Gate 1 Roundabout
Former Huntingdon -
Cambridge
Alconbury North • Alconbury East • 23 Spittals • Brampton Hut • Brampton & Huntingdon Racecourse • Spittals • Godmanchester • Hemingford Abbots • Galley Hill • Fenstanton • Trinity Foot • Lolworth • Bar Hill • Dry Drayton


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