Drivers are once again reminded to steer clear if possible from a major commuting motorway that is currently undergoing extensive work. 

Planned overnight closures will continue this week on the M4 which could cause severe delays for some motorists. 

The planned list of closures is as follows: 

Monday, September 30

M4-Westbound

M4 westbound Jct 12 entry slip road closure from 9 pm to 6 am. 

M4 westbound jct 4 exit slip road closure from 10 pm to 5.30 am. 

M4 westbound Jct 18 entry slip closed from 9 pm to 6 am. 

 

Tuesday, October 1

M4-Westbound

M4 westbound Jct 12 entry slip road closure from 9 pm to 6 am. 

M4 westbound Jct 15 exit slip road closure from 9.30 pm to 6 am. 

M4 westbound jct 4 exit slip road closure from 10 pm to 5.30 am. 

M4 westbound Jct 18 entry slip closed from 9 pm to 6 am. 

 

M4-Eastbound

M4 eastbound Jct 15 entry slip road closure 9.30 pm to 6 am. 

 

Wednesday, October 2

M4-Westbound

M4 westbound Jct 12 entry slip road closure 9 pm to 6 am. 

M4 westbound Jct 14 exit slip road closure from 9.30 pm to 6 am. 

M4 westbound Jct 14 entry slip road closure from 9.30 pm to 6 am. 

M4 Westbound Jct 1 to Jct 3 carriageway closure from 10 pm to 5.30 am. 

M4 westbound Jct 18 entry slip closed 9 pm to 6 am. 

 

Thursday, October 3

M4-Westbound

M4 westbound Jct 12 entry slip road closure from 9 pm to 6 am. 

M4 Westbound Jct 1 to Jct 3 carriageway closure from 10 pm to 5.30 am. 

M4 westbound Jct 18 entry slip closed from 9 pm to 6 am. 

 

M4-Eastbound

M4 eastbound Jct 14 entry slip road closure from 9.30 pm to 6 am.

M4 eastbound Jct 14 exit slip road closure from 9.30 pm to 6 am.