M4 Planned Roadworks: Closure & Delays at M4 eastbound between J18 and J17

Other

M4 both directions Jct 15 to 22 – mobile lane closure

Road Network: M4 (East bound)

Affected Sectors:

  • Sector 1: M4 eastbound between J18 and J17

Status & Certainty: Scheduled Maintenance (Probable)

Restrictions: Mandatory compliance required.

Carriageway & Lane Capacity

  • Total Closed Lanes: 1
  • Lanes Remaining Open: 3

Schedule Window

  • Scheduled Start: 20/08/2026 at 20:00
  • Estimated Completion: 21/08/2026 at 06:00
  • Schedule data last synced/updated by National Highways on: 18/08/2026 at 01:22
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