A3 Disruption at Hindhead is reported to be expected as the A3 closes for a weekend in March.
The road is closing as part of the Hindhead Tunnel works and the work will involve installing two new roundabouts for the Hazel Grove junction.
It means the section between Headley Road and Crossways Road must be closed.
Traffic will be diverted via the A31 and A325, passing through Bordon and Farnham.
Highways Agency spokesman Stuart Thompson said: 'Progress on the A3 Hindhead tunnel scheme is good and we will soon need to connect the new junction for the scheme into the existing road network at Hazel Grove.
'It has been decided to close the A3 between 10pm on Friday night and 5am on Monday morning on the weekend of March 27 to 29.'
The Hindhead Tunnel is due to open in the summer of 2011.
