The bridge is part of the lock. Note the split where the horse's towing rope used to go in-between.

Photograph taken by Mike and Ethel Cummins on 20 February 2015 and was added to the database on Friday the 20th of February, 2015

This photo is of Aston Lock No 26 Footbridge on the Trent and Mersey Canal (Main Line - Great Haywood to Etruria)