M6 Junction 21: Woolston Interchange – A57 Warrington
Junction 21 of the M6, known as the Woolston Interchange, is where the M6 meets the A57, for Warrington. The nearest town is Warrington, about 3.5 miles to the west, with Partington (4 miles east) and Irlam (5 miles north-east) also close by. Villages right beside the junction include Lymm.
Roads that meet at or beside this junction: A57, B5210. The main road at the junction is the A57.
From here, the drive north to junction 21A (Croft interchange) is about 1.7 miles and the drive south to junction 20 (Lymm interchange) is about 2.1 miles. Junction 21 is about 94 miles from the start of the M6 at junction 1 and 117 miles from the end at junction 45.
- Junction M6 J21 · Woolston Interchange
- Signed for A57 · Warrington (Woolston)
- Nearest town Warrington, 3.5 miles west
- Map section Section 4: J16–J21A, Cheshire, Knutsford and Warrington
We also have a page on M6 Junctions 20 to 21: Thelwall, with the traffic counts and news for that stretch.
Live traffic at M6 junction 21
The speed strip below shows the M6 from junction 19 to junction 22, both directions, from National Highways’ live data, checked every five minutes.
Live traffic speed flow: M6 Junctions 19 to 22
Untick all three to see just the speeds. We show the important overhead signs and the mandatory speed limits (red ring); see every overhead sign.
Go to our live M6 traffic speed flow map ›
Junctions either side
- J20Lymm InterchangeM56 · Lymm interchange (M56 to Manchester Airport & Chester)Nearest town: Warrington, 4.4 miles
- J21ACroft InterchangeM62 · Croft interchange (M62 to Manchester & Liverpool)Nearest town: Warrington, 2.9 miles
Live traffic news at M6 Junction 21
Incidents and roadworks between Junction 20 and Junction 22 that we are aware of.
M6 Northbound and Southbound mobile hardshoulder closure (MP 290/5 - 346/6)
00:305 Oct 2026reported 12 min ago
- Location
- M6 southbound between J23 and J22
- Direction
- Northbound
- Lanes closed
- Hard shoulder closed
- Reason
- Sweeping of road
- Schedule
- 20:35 Sun 5 Apr 2026 → 23:59 Fri 31 Mar 2028
+ 8 more near Junction 21 - see all the M6 traffic news →
This is the news for Junction 21 only, not the whole M6. For the rest of the motorway see all the latest M6 traffic news, the overhead signs and the speed limits in force now.
Updated 00:42 Mon 5 Oct 2026