Woolston Eyes
Park · Warrington
Road bridge
The Thelwall Viaduct (grid reference SJ664883) is a steel composite girder viaduct in Lymm, Warrington, England. It carries the M6 motorway across the Manchester Ship Canal and the River Mersey. It is between junctions 20 and 21 of the M6, the former also being junction 9 of the M56.