From Roader's Digest: The SABRE Wiki
|Length:||2 miles (3.2 km)|
|Route outline (key)|
The M181 is a spur from the M180, and is an important link to the industrial estates around Scunthorpe. It has no junctions and is arguably too short to have its own number. It is pretty much straight for its entire length and is entirely D2M in formation.