Mills Hill Bridge, Chadderton
in Chadderton, near Oldham
Also known locally as Th'iron Dongle.
This attaractive skewed iron bridge carried the railway from Rochdale to Manchester over the Rochdale Canal, adjacent to Lock 61 (Scowcroft).
Geograph entry here
Numerous photos, showing details, here.
Note: The older Todmorden - Gauxholme No. 2 Viaduct is of similar construction, but has been much altered.