Gathurst Viaduct carries the M6 motorway across the Douglas valley at Shevington, Wigan, Greater Manchester, England.

Constructed in 6 spans, it crosses the Leeds-Liverpool Canal, the Manchester to Southport railway line and the River Douglas itself.

The reinforced concrete piers consist of five sets of four 6 ft (1.8 m) diameter columns supporting a cill beam.

The reinforced concrete deck is carried on ten 10 ft (3.0 m) deep continuous welded plate girders extending over the full length of the bridge.

[1] In design terms it is a sister bridge of the Rakewood Viaduct on the M62 motorway near Littleborough.