You are here: Home » Motorway Database » M898


Route of the M898

This tiny little spur is the highest numbered motorway in the UK. It connects the Erskine Bridge to the motorway network at the M8, and that's it.

It's a motorway designed and built in the earlier part of Scotland's motorway programme, and so it was designed to a set of standards that allowed less heavily-used routes to be built without hard shoulders and some other concessions. That sort of route would have emergency lay-bys at regular intervals instead, but at one mile in length, it's too short to have those either, so really it's just a dual carriageway with delusions of grandeur.

Its most impressive point, the three-level free flowing interchange with the M8, is less impressive when you realise its sliproads are all only one lane wide! When the motorway first opened each sliproad had two narrow lanes and no hard shoulder, which made it unwise to actually attempt overtaking, so it's for the best that the paintwork has been revised and the number of lanes reduced.

The motorway is, in fact, so short that by the time the sliproads have come together to form the mainline, you're already passing the direction signs for the terminus.

As of mid-2006, the Erskine Bridge tolls have been removed and the crossing is free.


Start Erskine (M8)
Finish Erskine Bridge (A898)
Passes None
Length 1 miles
Connects to M8


Views of the M898 from on and off the road. If you have a photo to contribute, contact me.


Exiting the M8, here's a sign of things to come. It sets the tone for the rest of the motorway.
Photo by Steven Jukes


At junction 1, heading northbound, the sliproad has one lane and two sharp bends - sharp enough to be signposted this way. Traffic staying on (what remains of) the motorway doesn't get let off the hook - they have to STOP AT TOLL BARRIER.
Photo by Steven Jukes


Southbound on the main carriageway, this doesn't look much like a motorway! The first sign is a mileage sign following the northern junction; the second is half a mile from the terminus on the M8.
Photo by Steven Jukes


Just off the northern end of the motorway, the toll booths approaching the A898 Erskine Bridge. The toll has now been abolished and the bridge is free to use.
Photo by Steven Jukes

Construction Timeline

When the various parts of the M898 were built, listed in chronological order.

Open Jct Section
Nov1975 Entire motorway

Exit List

All the junctions and destinations along the route.

Junction   Northbound               Southbound
1 Dumbarton
Erskine Bridge

Toll Plaza Interchange (Non-standard interchange)

N/A More information about this junction
LanesLanesLanesLanesSigns LanesLanesLanesLanesSigns
1 mile, 2 lanes Up   Down 1 mile, 2 lanes
(M8 J30) N/A M8


Greenock M8 Link
Glasgow Airport
M8 Link
More information about this junction
LanesLanesLanesLanes LanesLanesLanesLanes

With thanks to John for information in this section.