Note also that the route within Immingham has also changed.
From South Killingholme the 450 service no longer passes through the industrial part of the town but rather along Pelham Road from the Bluestone inn to terminate at The County inn as before (possibly via Habrough church?) and vice versa.
This is a more practical solution for people from the Barton direction who wish to visit the Civic Centre and Immingham museum.