North-east motorists are bracing themselves for a weekend of traffic chaos with a number of road closures being implemented.
The A90 at Charleston shut last night, and will remain so until Monday morning, to allow for work on the city bypass.
Now that the new flyover crossing the dual carriageway is complete, the old bridge will be demolished.
Transport Scotland has warned there will be a “significant” impact on road users.
While diversions are in place, motorists are being advised to avoid the affected sections of the A90 and A956 where possible.
A spokesman said: “This is the most significant road closure the contractor has implemented as part of the works and we are anticipating that all approaches and the surrounding roads will be affected.
“We would like to strongly advise road users that they should only travel via Charleston this weekend if it is absolutely necessary.
Queues are also likely on the A947 Aberdeen to Banff road.
The stretch between the River Don Bridge and Fountain Equestrian Centre has been closed for the last two weekends, and has shut again until 6am on Monday.
The spokesman added: “This weekend’s planned closure of the A947 has been postponed by the contractor, who is currently reprogramming the works in this area.
“The contractor is aware of, and will be making changes, to the existing road signs.
“Further information regarding the closure will be issued in due course.”