The A5758 is the long-planned link from Switch Island, near Aintree, to the A565 at Thornton. The road was opened on 19th August 2015 and replaced the parallel A5207 (now renumbered B5207).
The road starts at Switch Island, which was redesigned to accommodate it; it is no longer obvious that the road was once a full roundabout. Westbound M57 traffic continues ahead onto the A5758 (although the same is not true in the other direction), after which we pass through the junction via a couple of sets of traffic lights and continue west along Broom's Cross Road.
A farm access track is crossed at traffic lights, after which we swing round to the left to cross the B5422, again at traffic lights. After passing to the north of a cemetery the road ends at a roundabout on the A565.