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Hardwick Roundabout

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Hardwick Roundabout
Location Map ( geo)
A10-A47 Interchange near King's Lynn - Geograph - 4627659.jpg
Traffic signals on the main roundabout's circulatory carriageway, with the flyover in the background carrying the A47 over the junction
Cameraicon.png View gallery (6)
Hardwick, King's Lynn
Highway Authority
National Highways
Junction Type
Signalised Roundabout with flyover and satellite roundabout
Roads Joined
A10, A47, A149
This article is about the roundabout near Kings Lynn between the A10, A47 and A149.
For the interchange on the A428 west of Cambridge, see Hardwick Interchange
For the gyratory between the A40, A465 and A4042 near Abergavenny, see Hardwick Gyratory.


The A47 bridging the roundabout

Hardwick Roundabout, or Hardwick Interchange is the name of a primary route junction to the south-east of King's Lynn, in Norfolk. The A47 and the A149 cannon here, plus it serves as the northern terminus of the A10. With the A47 being a major route from the Midlands to East Anglia and the A10 being the main route to London, this is one of the busiest junctions in the area.


Before the 1970s, this used to be a simple fork, linking the route from Norwich into King's Lynn (present day A47 eastbound to the A149 westbound) and the route to Cambridge and Ely (present day A10) meeting here. In 1922, the A17 forked off the A10, which went into the centre of the town. After 1935, the A47 took over the east-west route.

The Hardwick Roundabout itself came into being in the 1970s when King's Lynn's southern bypass and A149 eastern bypass were constructed and met at this junction. Provision was made for the A47 to fly over the top, with the western A47 flaring down to the junction, and a mound of earth in the middle of the junction. Part-time traffic signals were added to the junction as the route became significantly busier.

Finally in the early 2000s the flyover was constructed, but not as originally envisioned. The mound of earth was removed, and a single carriageway flyover constructed with a 40 mph speed limit. The flares on the westernt A47 remain as sliproads, but a roundabout (officially called 'Constitution Hill Roundabout', but known locally as 'Hardwick Satellite Roundabout') was built on the eastern A47 to provide access to the other side of the junction. At the same time, the lanes were reconfigured and the part-time lights converted to be full-time.

the junction in the late 1950s

The above image of the 70s - 90s doesn't quite show the full picture - there was a one way sliproad to bypass the roundabout at the northern end between the Kings Lynn A149 and the bypass. This was removed when a new two way link road was built along with a new roundabout further north on the bypass - see Jubilee Roundabout.


Route To Notes


Downham Market, Thetford (A134)


Wisbech, Sleaford (A17), Saddlebow Ind Est


Norwich, Swaffham


Cromer (A148), Hunstanton, Sandringham, North Ind Ests, Docks, Hospital


King's Lynn, Hardwick Ind Est, Retail Park
Harwick Narrows Ind Est


Hardwick Roundabout
Related Pictures
View gallery (6)
HardwickNew.pngHardwickOld.pngA47 Hardwick flyover - Geograph - 466912.jpgA10-A47 Interchange near King's Lynn - Geograph - 4627659.jpgA47 approaching roundabout at Constitution Hill - Geograph - 4996653.jpg
Other nearby junctions
Kings Lynn
Junctions on the A10
Bank • Shoreditch • Dalston Junction • Stoke Newington • Seven Sisters • Bruce Grove • Great Cambridge Junction • Halfway House • Turkey Street • Waltham Cross Interchange • Turnford New River Arms • Hoddesdon Sun Roundabout • Hailey Interchange Amwell Roundabout • Rush Green Interchange • Westmill Interchange • Moles Interchange • Westfield Interchange • Milton Interchange • Oakwood Corner • Hardwick Roundabout
Junctions on the A47
Ashted Circus • Spitfire Island • Longshoot • Dodwells Roundabout • Desford Crossroads • Hinckley Road Roundabout • St Nicholas Circle • Leicester Road Junction • Duddington Roundabout • Wansford • Sutton Roundabout • 14 Castor • 15 Thorpe Wood • 16 Bretton Gate • 17 Bretton Way • 18 Lincoln Road • 19 Fulbridge • 20 Dogsthorpe Roundabout • Welland Road Roundabout • Littlewood Roundabout • Eye Green Roundabout • Oversley Lodge Roundabout • Station Road Roundabout • New Cut Roundabout • Guyhirn Roundabout • Redmoor Lane Roundabout • Wisbech Roundabout • Shoreboat Roundabout • Pullover • Saddlebow • Hardwick • Swaffham • Norwich Road Roundabout • Toftwood • Honingham Roundabout • Easton Roundabout • Longwater • Watton Road • Thickthorn • Ipswich Road • Trowse • Postwick • Cucumber Lane Roundabout • Blofield • Reedham Road • Acle Roundabout • Vauxhall Roundabout • Pasteur Road Roundabout • Harfreys Roundabout • Beccles Road Junction • Victoria Road Roundabout • Middleton Road Roundabout • Links Road Roundabout • Station Road Roundabout • Rackhams Corner • Tesco Roundabout • Jubilee Way Roundabout • St Peters Street Roundabout • Gordon Road Roundabout • Station Square
Junctions on the A149
Southgates Roundabout  • Hardwick Roundabout  • Jubilee Roundabout  • Knights Hill Roundabout  • Castle Rising Junction  • Butlers Cross  • Alderman Pratt Roundabout • Ken Hill Roundabout • Redgate Hill Roundabout  • Vauxhall Roundabout

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