A421 upgrade

Diversions and closures

A421 closure dates

The A421 road will be closed from 8pm on Friday 31 May until 6am on Monday 3 June. The closure will take place from Eagle Farm Roundabout to Junction 13 of the M1. The closure will take place from the roundabout by the Eagles' Rest housing development and the Magna Park and Altitude logistics parks, down to Junction 13 of the M1. This is to allow the Cranfield Road bridge to be demolished.

Diversion routes

We will only make closures when the M1 road is open. However, our diversions show the alternative routes for drivers who can’t or who don’t want to use the motorway.

There is a diversion route for drivers who would normally take the A421. This route avoids villages and goes via the A421 Bedford Western Bypass and then the A422 towards Milton Keynes.

A421 closed diversion route

The lorry restrictions remain in place for the local villages.

Cranfield Road bridge closure

The existing Cranfield Road bridge will need to be demolished and a replacement, permanent bridge, constructed. We’ve closed the Cranfield Road bridge from 13 May 2019 for up to 12 months whilst the road improvements are done. We are working with our contractor to reduce this period, if possible.

Please use the following diversion route in the meantime.

Cranfield road bridge diversion

The lorry restrictions remain in place for the local villages.

Rights of way

Temporary closures to public rights of way will be in effect during the work.

Download the cycle diversion route (PDF 2.2MB) .

We apologise for any inconvenience caused, and thank you for your patience during the roadworks.

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