A 7.5 tonne weight restriction remains in place on the M4 between Junctions 1 and 3 in both directions as a result of ongoing repair work at the Boston Manor Viaduct.
It is very important that drivers of vehicles of 7.5 tonnes or more comply with this restriction.
If you operate vehicles weighing 7.5 tonnes or more and use the M4 between junctions 1 and 3, please ensure your drivers follow the clearly signed diversion route using the dual carriageways of the A312 and A4. This applies to both eastbound and westbound traffic.
VOSA is working closely with the Met Police and the Highways Agency to identify and take action against road users who do not comply. This action includes the issuing of fixed penalties for vehicles not complying with the weight restriction and reporting repeat offenders to the Traffic Commissioner.