AA Traffic and Travel News states the closures is on A34 Southbound from A4185, Chilton Interchange to the M4 junction13.
No through traffic is allowed either in Field Road both ways from Sheep Leaze Lane to Hailey Lane.
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There are also temporary traffic signals due to water main work on Priors Court Road both ways between Ashfields Farm and Priors Court Road and Priors Court.
Drivers are warned to expect some delays in the area.
AA Traffic and Travel News has reported that ‘some traffic is leaking in from some of the very small side roads’ but not through the main closure on the A34.