M1 Junction 16 (A45, A4500)
Junction 16 is the western turn for Northampton, about five miles east along the A45, and for Daventry on the A45. Upper Heyford, Nether Heyford and Harpole are the villages beside it. The Althorp Estate is about three and a half miles north. The cinch Stadium at Franklin's Gardens is about four miles east.
Drivers from the Heyfords, Harpole and west Northampton use this junction, as does anyone turning off for Daventry. Here is the area and what our records say about its traffic.
Check this junction now: live M1 speed flow map · latest M1 traffic news · M1 serious incidents · M1 accidents
M1 Junction 16 Now: Accidents, Incidents and Roadworks
Live traffic news at M1 Junction 16
Incidents and roadworks between Junction 15 and Junction 17 that we are aware of.
Lane 1,2 closure southbound
21:50 (9:50pm)21 Oct 2026reported 6 min ago
- Location
- M1 southbound between J17 and J16
- Direction
- Southbound
- Lanes closed
- Lane closures
- Reason
- Maintenance work
- Schedule
- 20:00 (8pm) Wed 21 Oct 2026 → 06:00 (6am) Thu 22 Oct 2026
Forecast - not confirmed
This is the news for Junction 16 only, not the whole M1. For the rest of the motorway see all the latest M1 traffic news, the overhead signs and the speed limits in force now.
Updated 21:57 (9:57pm) Wed 21 Oct 2026
Live Traffic Speeds at M1 Junction 16
The speed strip below shows the M1 around this junction, both directions, from National Highways’ live data, checked every five minutes.
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 M1 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.
All the latest M1 traffic news →Live M1 traffic speed flow map →
M1 J16 in Our Records
More than half of the incidents we recorded at J16 were collisions (3 of 4). In both directions, traffic has been running faster than its typical speed, even at the slowest times of day.
Average speed by hour of day at J16
Northbound
Southbound
Incidents per week at J16
The latest 4 here
- Wed 21 Oct, 18:56 (6:56pm) Collision ✓Reported by National Highways
M1 northbound between junctions J16 and J18
✓ Cleared after about 77 minutes (1.28 hours) - Fri 16 Oct, 07:55 (7:55am) Broken Down Vehicle ✓Reported by National Highways
M1 northbound between junctions J16 and J18
✓ Cleared after about 62 minutes (1.03 hours) - Sun 11 Oct, 10:30 (10:30am) Collision ✓Reported by National Highways
M1 southbound between junctions J18 and J16
✓ Cleared after about 14 minutes - Sun 11 Oct, 10:13 (10:13am) Collision ✓Reported by National Highways
M1 southbound between junctions J16 and J15A
✓ Cleared after about 91 minutes (1.52 hours)
Built from our own records of National Highways’ live data for the M1 either side of J16: speeds from 13 days of five-minute readings, incidents from the last 13 days (we started recording incidents on 09/10/2026). Each incident is counted once. Updated every five minutes.
- Junction M1 J16
- Roads at this junction A45, A4500
- Nearest town Northampton, 5.1 miles east
- Junction before J15A, Rothersthorpe, about 3.3 miles in a straight line
- Junction after J17, Kilsby, about 8.4 miles in a straight line
Around M1 Junction 16: Towns and Places on the Map

| Place | What it is | From the junction |
|---|---|---|
| Upton Country Park | Park or nature reserve | About 2.5 miles east |
| Berrywood Hospital | Hospital | About 2.5 miles north-east |
| Althorp Estate | Attraction | About 3.5 miles north |
| Hunsbury Hill Country Park | Park or nature reserve | About 4 miles east |
| cinch Stadium | Venue | About 4 miles east |