Traffic lights are to be used on the A1 at Felton overnight tomorrow and Wednesday for bridge inspection works.
They will be in use from 8pm to 6am.
A convoy system is still in operation on the A1 at North Charlton. It will be in place between 8pm and 6am north and southbound with junction closures and diversions clearly signed.
Speed restrictions of 40mph and 10mph will apply, over-taking restrictions will also be in place during the day.
The works will be ongoing until July 9.