GeoGraph - photograph every grid square

The Manchester, Sheffield and Lincolnshire Railway, later part of the Great Central, built this bridge en route to Grimsby and Sheffield. The bridge was shared with the line from Lincoln to Doncaster, part of the Great Northern Railway, which crossed the MS&LR at this river bridge. However, the MS&LR exercised its rights by forcing the Great Northern lines to approach either side of the entrance to the bridge by means of a dog-leg, causing GN trains to cross more slowly, to avoid damaging 'their bridge'.
The River Trent is tidal to this point, and upstream to Newark. Tidal waves, called aegres or aegirs, spectacular before channel deepening following locally disastrous 1947 floods, are associated with the highest tides in spring and autumn.