The A66(M) is a tiny little spur from the A1(M) to connect it to Darlington, which disappointingly ends on a single-carriageway road. It's quite odd that it was given its own number as it doesn't last much longer than a mile.
More interestingly this road is a link from the new A1 (or rather A1(M)) to the old A1: the road's original course is now the unclassified road to Barton. It would be nice to get rid of the mismatched capacity at the end of the spur by providing a dual-carriageway bypass for Darlington instead, tying neatly in to the existing A66 towards Middlesbrough. But that won't happen.
There are no photos in this section yet.
When the various parts of the A66(M) were built, listed in chronological order.
All the junctions and destinations along the route.
|1 mile, 2 lanes||1 mile, 2 lanes|