Drivers using the M4 in Wiltshire this morning Thursday, September 24, can expect severe delays as the road is closed in both directions between junctions 17 (Chippenham) and junction 18 (Bath) due to two serious collisions.
The road is expected to be closed for some time and drivers are advised to avoid the area if possible and find alternative routes.
Drivers heading westbound are advised to follow the solid diamond diversion route on road signs. Exit the M4 at junction 17 and take the first exit from the roundabout onto the A350 and travel approximately 2.5 miles towards Cepen Park North.
At the roundabout take the second exit and follow the A350 through two further roundabouts until reaching the roundabout for the A420. Take the third exit from the roundabout onto the A420, follow the A420 for approximately 10 miles through Giddeahall, The Shoe and Marshfield. At the junction with the A46 take the A46 northbound for approximately 3.5 miles, then take the first exit at the roundabout to re-join the westbound M4 at junction 18.
Drivers wishing to travel east are advised to follow the solid square diversion route on road signs.
Exit the M4 at junction 18 and take the A46 southbound for approximately 3.5 miles until reaching the roundabout with the A420. Take the first exit onto the A420 eastbound towards Cepen Park North for approximately 10 miles travelling through Marshfield, The Shoe and Giddeahall. Then take the first exit on the roundabout to follow the A350 north for approximately 3.5 miles.
Then take the fourth exit on the roundabout to re-join the eastbound M4 at junction 17.
Delays are likely on the approach to the closure, with additional journey times also expected on diversion routes.
Drivers are advised to check before they travel and to allow extra time for their journeys if travelling in the area, or to consider alternative routes.
More details: www.trafficengland.com or Twitter feed at @HighwaysSWEST, or customer contact centre on 0300 123 5000.