The construction of the Aberdeen Western Peripheral Route/Balmedie to Tipperty (AWPR/B-T) project will take a significant step forward over the next three weekends.
Around 20 beams are to be lifted into place over the A96 Aberdeen to Inverness trunk road to form a new bridge.
To ensure the safety of road users and construction workers, the A96 near Craibstone will need to close overnight from 8pm to 6pm at weekends to allow the beams to be lowered into place.
The overnight closures will take place over three weekends, between Friday May 13 and Sunday, May 15; Friday, May 20 and Sunday, May 22; and Friday, May 27 and Sunday, May 29.
Diversions will be clearly sign-posted for westbound and eastbound traffic.
Westbound traffic will be in dedicated lanes from the Sclattie Roundabout.
Traffic travelling onto Dyce Drive should take the right hand lane.
Traffic travelling westbound should take the left hand lane and then turn left onto Forrit Brae and onto the C89C Chapel of Stoneywood-Fairley Road.
A one-way system will be in place on the C89C Chapel of Stoneywood while this diversion is in place.
Eastbound traffic will turn left onto the U53C Chapel of Stoneywood-Newton Kirkhill Road.
A one-way system will be in place until road users reach the Dyce Drive junction.
An AWPR/B-T spokesperson said: “This is the longest road construction project currently underway in the UK, and the placement of these beams will ultimately allow AWPR traffic to travel over the A96 so this is a major milestone for the project.
“We have been working closely with Police Scotland and the local authorities to minimise any inconvenience that these beam lifts may cause to road users.
“The diversions have been carefully planned to ensure that anyone who needs to use the A96 during the closures has a safe alternative route.
“Drivers are strongly encouraged to follow the road signs in place throughout the diversion.
“We would like to take this opportunity to thank road users and the local community for their on-going support and patience during the construction works.”
The beams, which were delivered at the beginning of April, are already on site.