Delays of 50 minutes are being reported around the junction for Walsall as drivers are diverted while a second four-lane bridge spanning the width of the road is constructed.
Replacing the 50-year-old bridges currently in place, the two new, wider structures will tackle the congestion encountered at the busy Walsall junction.
The motorway will be closed in both directions until 6am on Monday.
All the beams have now been installed using a crane which is being dismantled now but delays remain as the junction is still closed.
Highways England tweeted at 1.30pm saying: “The crane has left for the South West. Safety checks continue. Currently delays of nearly 50mins. Avoid M6 in this area. Thank you for your patience.”
They added: “We are replacing the temp barriers and have begun sweeping the carriageway. Please avoid the area as delays of 50 mins on the M6 are being experienced locally.”
Work has already been carried out on the north bridge which involved installing 44m-long steel beams across the M6, each weighing between 90 and 120 tonnes.
Traffic using the motorway is following an ‘up and over’ diversion at Junction 10 which leaves the motorway at the junction, travels over the roundabout and then re-joins the M6 on the other side.
The transformation of the junction will replace the existing bridges in place across the motorway and double the number of lanes around the bottleneck junction from two to four.
The works are expected to be completed by 2023.
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