M4 closed between Junction 10 and Junction 11 near Reading, 18 to 21 September 2026

M4 Junction 49

M4

M4 Junction 49: Pont Abraham (A48, A483)

Map of M4 Junction 49: Pont Abraham
M4 Junction 49: Pont Abraham. Map data © OpenStreetMap contributors. Map drawing © Corporate Ace Limited.

Junction 49 at Pont Abraham is where the M4 ends and the A48 carries on west to Carmarthen, with the A483 heading north to Ammanford and Llandeilo. Pont Abraham Services is at the junction. Llanedi is the nearest village.

This is where the M4 ends and west Wales begins. If you are heading for Carmarthen, Ammanford, a holiday in Pembrokeshire or family further west, the map shows how the roads carry on from here.

The M4 in England: live M4 speed flow map · latest M4 traffic news (Junctions 1 to 23)

M4 Junction 49: Live Traffic Information

This junction is on the M4 in Wales. National Highways’ live data, which our news, speed strip and records use, covers the M4 in England up to Junction 23. In Wales the motorway is run for the Welsh Government by Traffic Wales, so this page does not yet show live accidents, incidents, roadworks or speeds for this junction. We are working on adding them. Until then, check Traffic Wales before you travel.

Around M4 Junction 49: Pont Abraham: Towns and Places on the Map

Map of the area within about 5 miles of M4 Junction 49: Pont Abraham, showing the towns, villages, roads and places to visit
The area within about 5 miles of M4 Junction 49. Map data © OpenStreetMap contributors. Map drawing © Corporate Ace Limited.

Junctions Either Side

M4traffic.co.uk is dedicated to the latest M4 traffic news, checked every five minutes, 24 hours a day. The M4 meets the M25 at Junction 4b near Heathrow and the M5 near Bristol — see M25 Traffic and M5 Traffic.