|Location Map ( geo)|
|From:||Toddington Interchange (TL019297)|
|To:||Ampthill bypass (TL029364)|
|Distance:||4.5 miles (7.2 km)|
|Meets:||M1, B530, B5120, A507|
|Old route now:||B5120|
|Route outline (key)|
The A5120 is a semi-rural road in south Bedfordshire.
The route begins on the M1 at J12 and heads north-east through Westoning and Flitwick, where it zigzags over the Midland Main Line (and the station) between a full-size and a mini-roundabout. The High Street runs alongside the railway line, then the road winds into Ampthill Road. There's a brief glimpse of fields before the road ends at a roundabout, known as the One-o-One, on the A507 Ampthill bypass.
The A5120 was originally part of the B556; however it was swiftly upgraded and the A5120 number was applied to the route by the late 1930s.
When the number was first allocated, the route ended on what is now the B530 (then the A418) in Ampthill; however when Ampthill was bypassed in 1983 the A5120 was slightly shortened, to end on the bypass.
The route was re-aligned through the Toddington Interchange in 2012 during the M1 J10-J13 smart motorway upgrade, as part of work to change the junction from a diamond to a folded-diamond interchange.