Drivers are anticipating disruption as parts of the A11 are closed to allow tests to be carried out on the road surface.
Highways England will carry out concrete surveys on the A11 between Wymondham and Spooner Row, to check the quality of the road structure.
The work, which begins on Thursday, February 13, will take around one month to complete.
A section of the A11 between Wymondham and Spooner Row will be closed between 8pm and 6am on week days, with diversions in place via local roads.
The A11 Northbound from Wymondham to Spooner Row will be closed between Thursday, February 13 and Wednesday, February 26.
Two sections of the A11 Southbound will be closed from Thursday, February 27, until Thursday, March 12, between Spooner Row and Wymondham.
Highways England said it expected the diversions to add around 10 minutes to peoples' journeys.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here