M1 Junction 15 (A45, A508)

Map of M1 Junction 15 — M1 Junction 15. Map data © OpenStreetMap contributors. Map drawing © Corporate Ace Limited.

Junction 15 is the turn for Northampton, about three and a half miles north, on the A508 and the A45. Grange Park and Collingtree are right beside it. Brackmills Country Park and Hunsbury Hill Country Park are each about two and a half miles away, and Northampton Services about the same distance north-west, at Junction 15A.

Grange Park and Collingtree residents, workers at the Brackmills industrial estate, and van drivers delivering across south Northampton use Junction 15. Look here before you leave, then check the live map for the rest of the trip.

Check this junction now: live M1 speed flow map · latest M1 traffic news · M1 serious incidents · M1 accidents

M1 Junction 15 Now: Accidents, Incidents and Roadworks

Live traffic news at M1 Junction 15

Incidents and roadworks between Junction 14 and Junction 16 that we are aware of.

Lane 1,2 closure southbound

PlannedRoadworksSouthbound

Time now: Wednesday, 21 October 2026, 22:02 (10:02pm)

21:50 (9:50pm)21 Oct 2026reported 11 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

🚧HA scheduled: 20:00 (8pm) Wed 21 Oct 2026 → 06:00 (6am) Thu 22 Oct 2026 underway until 06:00 (6am) Thu 22 Oct 2026

This is the news for Junction 15 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 22:02 (10:02pm) Wed 21 Oct 2026

Live Traffic Speeds at M1 Junction 15

The speed strip below shows the M1 around this junction, both directions, from National Highways’ live data, checked every five minutes.

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Key

60 mph +50–5930–4915–29under 15

closedM62connecting motorwayA6A road👈M1our site: tap for its map

services, on the side you can reach them

crashincidentqueueroadworksspeed limitspeed shown on the signsstop-startoverhead sign

reported by drivers, which can’t always be relied onconfirmed by National Highways

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Go to our live M1 traffic speed flow map ›

In an emergency call 999. To report a problem on a motorway, call National Highways on 0300 123 5000 (24 hours).

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 J15 in Our Records

Incidents here, last 13 days61 collision, 5 breakdowns or obstructions

Typical time to clear58 minutesthe middle value of 6 cleared

Slowest daytime hour northbound14:00–15:00average 62 mph (typical 62 mph)

Slowest daytime hour southbound07:00–08:00average 61 mph (typical 61 mph)

Most incidents we recorded at J15 were breakdowns or obstructions; 1 of 6 were collisions. In both directions, traffic usually keeps close to its typical speed through the day.

Average speed by hour of day at J15

our average, last 13 daysNational Highways’ typical speed

Northbound

Southbound

Incidents per week at J15

collisionsbreakdowns and obstructions* part week: we started recording during it

The latest 5 here

Mon 19 Oct, 15:38 (3:38pm) Broken Down Vehicle ✓Reported by National Highways
M1 northbound between junctions J14 and J15
✓ Cleared after about 11 minutes
Sat 17 Oct, 07:02 (7:02am) Broken Down Vehicle ✓Reported by National Highways
M1 southbound between junctions J15 and J14
✓ Cleared after about 34 minutes
Fri 16 Oct, 04:32 (4:32am) Collision ✓Reported by National Highways
M1 southbound between junctions J15 and J14
✓ Cleared after about 76 minutes (1.27 hours)
Thu 15 Oct, 13:01 (1:01pm) Broken Down Vehicle ✓Reported by National Highways
M1 northbound between junctions J14 and J15
✓ Cleared after about 58 minutes
Tue 13 Oct, 00:00 (midnight) Vehicle Fire ✓Reported by National Highways
M1 northbound between junctions J14 and J15
✓ Cleared after about 86 minutes (1.43 hours)

Built from our own records of National Highways’ live data for the M1 either side of J15: 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 J15
Roads at this junction A45, A508
Nearest town Northampton, 3.6 miles north
Junction before J14, about 12.1 miles in a straight line
Junction after J15A, Rothersthorpe, about 2.7 miles in a straight line

Around M1 Junction 15: Towns and Places on the Map

Map of the area within about 5 miles of M1 Junction 15, showing the towns, villages, roads and places to visit — The area within about 5 miles of M1 Junction 15. Map data © OpenStreetMap contributors. Map drawing © Corporate Ace Limited.

Places on the Map Near M1 Junction 15
Place	What it is	From the junction
Brackmills Country Park	Park or nature reserve	About 2.5 miles north-east
Hunsbury Hill Country Park	Park or nature reserve	About 2.5 miles north-west
Northampton Services	Motorway services	About 2.5 miles north-west
Go Ape	Attraction	About 3 miles south-east