A1(M) Junctions 34 to 38: the Doncaster Bypass
The Doncaster Bypass runs 15.13 miles from Blyth, in the far north of Nottinghamshire, to Skellow in South Yorkshire. It opened in 1961 and is one of the oldest motorway sections in Britain. Reports for this section are shown below.
The junctions on this section
- Junction 34, Blyth — the A614 for Bawtry and the A631 for Gainsborough, with Blyth services. South of here the road is the A1.
- Junction 35 — the M18, which is the M18’s own Junction 2. It leads west to the M1 for Sheffield, and north-east to the M180 for Scunthorpe and the M62 for Hull.
- Junction 36 — the A630 for Rotherham and Doncaster.
- Junction 37 — the A635 for Doncaster and Barnsley.
- Junction 38, Skellow — the A638 for Wakefield, northbound only. The motorway ends and the A1 continues north towards Darrington.
Live traffic speed flow: A1(M) Junctions 34 to 40
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 A1(M) traffic speed flow map ›
NOTE: The speed flow, overhead sign messages or other information shown on our live traffic speed flow map is updated every few minutes. We cross check the data and aim to provide warnings if there could be a delay or an inaccurate speed reading. There can be occasions, beyond our control, and despite our best efforts where the speed flow could be inaccurate. We cannot therefore guarantee the speed you can expect on any stretch of the motorway is always accurately shown. However we hope you will find our live traffic speed flow map a useful tool in trying to plan your journey. Safe driving.
Two lanes, lots of lorries
Unlike most of the A1(M), the Doncaster Bypass has two lanes in each direction. It also carries a heavy share of freight: lorries are about 17% to 18% of traffic on every stretch, and between Junctions 35 and 37 more than 15,000 lorries a day.
How busy is this section?
| Stretch | All vehicles | Lorries | Share lorries |
|---|---|---|---|
| J34 to J35 | 55,811 | 9,965 | 17.9% |
| J35 to J36 | 86,982 | 15,173 | 17.4% |
| J36 to J37 | 91,038 | 15,740 | 17.3% |
| J37 to J38 | 79,360 | 14,129 | 17.8% |
© A1MTraffic.co.uk · Statistics from the Department for Transport
The M18 changes the road. South of Junction 35 the count is 55,811; north of it, 86,982, as traffic to and from the M1 and M180 joins. The Department for Transport records the Junction 34 to 35 stretch at two count points with the same figure, shown once here. Between Junctions 37 and 38 a second count point records 77,019.
Sheffield and the M1
This is the first place north of the M25 where the A1(M) and the M1 are joined by another motorway. From Junction 35 the M18 runs west to the M1 at its Junction 32, the usual way between the A1(M) and Sheffield. For the M1, see M1 Traffic; for the M18 and M180, see Traffic News England; for how the two motorways connect, see the A1(M) and M1 link roads.
Beyond this section
Previous section: Junctions 14 to 17. Next: Junctions 40 to 46. The gaps either side are the A1; see A1 traffic news.
Traffic count figures on this page are from the Department for Transport road traffic statistics, 2025.
Live traffic news at A1(M) Junctions 34 to 38
Incidents and roadworks between Junction 33 and Junction 39 that we are aware of.
A1m southbound Jct 35 to Jct 34 Lane 1 closure (11/3 8/7)
04:42 (4:42am)10 Nov 2026reported 4 min ago
- Location
- A1(M) southbound between J35 and J34
- Direction
- Southbound
- Lanes closed
- Lane closures
- Reason
- Other
- Schedule
- 21:20 (9:20pm) Mon 9 Nov 2026 → 06:00 (6am) Tue 10 Nov 2026
+ 4 more near Junctions 34 to 38 - see all the A1(M) traffic news →
This is the news for Junctions 34 to 38 only, not the whole A1(M). For the rest of the motorway see all the latest A1(M) traffic news, the overhead signs and the speed limits in force now.
Updated 04:47 (4:47am) Tue 10 Nov 2026