M32 motorway B4469 providing access to Horfield. Midway through, a speed limit begins. The motorway continues further south and ends just beyond junction 3, north of St Paul's. A dual carriageway continues as the A4032 into the centre of Bristol, with a speed limit. The M32 is a trunk road, therefore its maintenance and upkeep is paid for by Highways England, the national roads authority. Most of the road has two lanes in each direction, though an extended sliproad north of junction 2 provides a climbing lane, and the short section between junction 1 and the M4 has three lanes both ways.
M4 motorway Usk bridge two crossings (east/westbound) were added as a connection from the M4 (at the newly constructed junction 25a) to the north/southbound A4042 Heidenheim Drive. M4 motorway Usk bridge The M4 motorway Usk bridge (or St. Julians Bridge) carries the M4 motorway across the River Usk in the city of Newport in the United Kingdom. The bridge is actually two separate bridges for the eastbound and westbound carriageways. When travelling westbound, the bridges lead directly into the twin Brynglas Tunnels. Work commenced on both the bridge and the tunnels on 10 September 1962, two months after work commenced on the George Street