M4 Junction 23A: Magor (A4810)
Junction 23A links the M4 to the B4245 for Magor and Undy, and the A4810 Newport southern distributor road. Magor Services is at the junction. Penhow Woodlands National Nature Reserve is about a mile and a half north. Newport Retail Park is about four and a half miles west.
Whether you live in Magor or Undy, are stopping at the services, or are delivering to the businesses along the Newport road, the map below shows what is around this junction.
The M4 in England: live M4 speed flow map · latest M4 traffic news (Junctions 1 to 23)
M4 Junction 23A: 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.
- Junction M4 J23A, Magor
- Roads at this junction A4810
- Nearest town Caldicot, 3.7 miles east
- Junction before J23, Rogiet, about 1.1 miles in a straight line
- Junction after J24, Coldra, about 3.9 miles in a straight line
Around M4 Junction 23A: Magor: Towns and Places on the Map
| Place | What it is | From the junction |
|---|---|---|
| Penhow Woodlands National Nature Reserve | Park or nature reserve | About 1.5 miles north |
| Penhow Castle | Historic house or castle | About 2 miles north |
| Caldicot | Railway station | About 3.5 miles east |
| Whitson Court | Historic house or castle | About 3.5 miles south-west |
| Newport Retail Park | Shopping | About 4.5 miles west |
| Newport Medieval Ship museum | Attraction | About 5 miles west |
