The A1 in North Yorkshire will be closed overnight during August.
Drivers are advised that the A1 in North Yorkshire will be closed overnight during 2 Saturdays in August to build a new bridge which will form part of the A1 Leeming to Barton major road scheme.
The A1 will be closed on Saturday 15 August and Saturday 22 August in both directions from 8pm to 10am between Scotch Corner and the A1(M) Junction 56.
Highways England Project Manager, Tom Howard, said:
This is a significant milestone for the scheme and a complex piece of engineering.
Large cranes will be used to install steel girders weighing more than 112 tonnes therefore it is essential we close sections of the motorway to install them safely.
Work has been planned to minimise disruption but we would advise road users to allow extra time to complete their journeys. We thank drivers for their patience.
The new Kneeton Hall Bridge will be built alongside the existing bridge to ensure continuous access for road users whilst the major work to upgrade the A1 to motorway standard between Leeming and Barton takes place. The old bridge will be demolished at a later date.
Clearly signed diversions will be in place and drivers are advised to allow an extra 15 to 30 minutes to their journey time.
Once completed the A1 Leeming to Barton scheme will unlock growth and boost the economy by creating a continuous motorway-standard route between London and Newcastle (including the M1 and A1M). It will also improve journey times and increase safety.
When the scheme opens to traffic in 2017, journey times between Leeming and Barton are expected to be reduced by approximately 20 per cent, and over a sixty-year period, the improvements are predicted to save around 20 lives and prevent around 450 serious accidents.
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.