The Bell Roundabout
|The Bell Roundabout|
|Location Map ( geo)|
|The roundabout to the north of the M25|
|M25, A1081, B556|
|Junctions related to the A1081|
|Airport Way Roundabout • Ancient Briton Junction • Bignells Corner • Capability Green • Gipsy Lane Junction • Kidney Wood Roundabout • London Colney Roundabout • London Luton Airport Roundabout • Peahen Crossroads • Pepperstock|
The Bell Roundabout is junction 22 of the M25. It used to be a roundabout on the A6 at the southern end of the London Colney bypass, with the old route and the B556. It had flared carriageways for future grade separation (possibly as the M10), which can still be seen on the northern side of the junction.
When the final bit of the M25, between the A41 and A1(M) was built, the A6 dual carriageway south of here was upgraded to motorway and the junction turned into a modified dumbell (with an extra two roundabouts on the south side of the motorway) keeping the original roundabout.
Access to a large retail park was built off the original A6 route just off the main roundabout, adding a lot of traffic to the junction.
|Watford, Heathrow Airport, (M1, M4)|
|Dartford Crossing, Harlow (M11)||was A6|
|St Albans, Riverside Ind. Estate||was A6|
|South Mimms, R.S.P.C.A Kennels||forms non-motorway route alongside old A6 bit of M25|
|London Colney, Hypermarket, Hertfordshire Business Centre||original A6 northwards|
|Colney Heath, Welham Green|