M4 closure tonight (Monday)
Published: 16:10, 20 August 2012
| Updated: 12:15, 21 January 2015
The work is being carried out overnight, between 10pm and 6am, when traffic flows are lowest, to minimise disruption.
The westbound carriageway will be closed between the exit and entry slip roads between 10pm and 1am.
Following this carriageway closure, the westbound exit slip road at junction 14 and one lane of the main carriageway will be closed between 1am and 6am for bridge inspections to take place.