Motorists have been warned to prepare for disruption as more bypass bridge beams are lifted into place near Stonehaven this weekend.
The B979 Netherley Road will be closed from 8pm on Friday, October 27, until 6am the following Monday.
During this time, a crane will lower five 40-metre beams into place, which will form the new A90 northbound carriageway.
The trunk road itself will be reduced to one lane in each direction, subject to a 30mph restriction, during this time.
The route will also have to be brought to a complete halt each night for around 15 minutes as a safety precaution.
No pedestrians or cyclists will be able to use the Netherley Road during this time, but a minibus will be available to provide transfers to the other side of the diversion.
Further overnight closures are expected from Monday, October 30, through to Wednesday, November 1, while works at the side of the new bridge section are carried out.
A Transport Scotland spokesperson said: “This is a significant milestone for Stonehaven.
“These beams are a key part of the new junction, forming a new bridge that will provide additional width for the B979 below and allow the junction to operate effectively.
“The contractor has been working closely with Police Scotland and the local authorities to ensure anyone who needs to use this section of the B979 Netherley Road over this weekend and during the following overnight closures has an alternative available to them, while maintaining the safety of road users and road workers.
“We ask that road users who would normally use this route to plan their journeys in advance, and consider giving themselves additional travelling time, so that they can reach their destination safely and on time.”