The westbound A14 between junctions 24 (Godmanchester) and 23 (Spittals) will be closed overnight, between 10pm and 5am, from Saturday (25 April) for two nights.
There will be clearly signed diversion routes in place.
Drivers travelling westbound will be diverted back along the A14 eastbound to junction 32 and join the A428. Traffic will re-join the northbound A1 and return to A14 at Brampton Hut interchange. Traffic will also be diverted from the northbound M11 at junction 13 onto the A1303 and A428. Westbound traffic will be advised of the closure from junction 32 onwards and on the M11.
Drivers using this section of the A14 are advised to plan their journeys and allow some extra time to reach their destinations.
Live traffic information is available on the Highways England website and mobile app, and drivers can also listen to traffic bulletins on local radio for updates.
Members of the public should contact the Highways England customer contact centre on 0300 123 5000.
Journalists should contact the Highways England press office on 0844 693 1448 and use the menu to speak to the most appropriate press officer.