The eastbound M4 will be closed between junctions 3 and 1 overnight between 10pm and 5am for four nights from Monday 11 March for drainage maintenance. Road users will be directed to follow a fully signed diversion route via the A4.
Narrow lanes and a 50mph speed limit are in place, with a free recovery service operating 24 hours a day. There will be additional lane and slip road closures as required, which will be carried out overnight when traffic flow is lowest.
The anti-clockwise exit and entry slip roads will be closed overnight between 10pm and 5am on Wednesday 6 February for litter clearance. Drivers will be directed to follow a diversion route via the M40 junction 1 for the exit slip road and via junction 18 for the entry slip road.
Work continues this week on an upgrade to the central reservation barrier along the M25 between junctions 5 (Sevenoaks) and 6 (Godstone), ahead of a major improvement project scheduled to start in the spring.
Narrow lanes and a 50mph speed limit are in place, with a free recovery service operating 24 hours a day. There will be additional lane and slip road closures as required, which will be carried out overnight when traffic flow is lowest.
Hampshire Police say that the A34 is likely to remain closed in both directions for most of the day as repairs are made to the road surface following a serious accident overnight.
It's understood that a transporter lorry hit the central reservation near Whitchurch in Hampshire, causing the cars it was carrying to fall onto both the north and south bound carriageways.
Police and Highways Agency staff have been at the scene since 11:10pm last night.
No one was hurt in the accident and no other vehicles are believed to have been involved.
Drivers hoping to use the A34 today are being advised to take alternative routes.
Police, the Highways Agency and local councils are today warning of chaos on the roads around the Olympics.
With cycling and rowing near the M25 drivers, are being warned to expect long delays.
Despite substantial investment in the roads to Weymouth, the Highways Agency says visitors should also allow for plenty of time to get to the sailing events.