Scheduled roadworks will close Macquarie Pass for five nights from Sunday.
The road will be closed from Sunday, March 17 to Friday, March 22 from 7pm to 4am.
Maintenance crews will undertake resurfacing works during this time.
Light vehicle can detour via Jamberoo Mountain Road.
Motorists are advised to allow for 10 minutes additional travel time.
Heavy vehicle detours are in place via the Hume Motorway, Picton Road and the M1 Princes Motorway.
These routes will add an additional 40 minutes travel time.
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