Editing Sutton Bridge (section)

==Swing bridge==
[[File:Cross Keys Swing Bridge - swung fully - geograph.org.uk - 578617.jpg|thumb|right|Cross Keys Bridge – swung open]]
The swing bridge which spans the River Nene is a notable feature of the town and the current version, known as [[Cross Keys Bridge]], was built in 1897 at a cost of £80,000 and is the third bridge to cross the river. The bridge was originally dual purpose, serving both road and rail traffic until 1959 when the railway closed.

The first bridge, opened in 1831, was designed by [[John Rennie the Younger]] and [[Thomas Telford]] as part of the Wash Embankment works. It was of a timber and cast iron construction and opened up rather like London's famous [[Tower Bridge]]. However it was eventually found to be awkwardly sited and in 1850, its replacement designed by [[Robert Stephenson]] was opened.

The position of the second bridge was approximately halfway between the original and the present day bridge. It was a swing bridge and was used only for road traffic until 1864 when the [[Midland Railway]] acquired powers to also use it for rail traffic. When the current bridge was constructed it was hoped that the 1850 bridge could be left in position for rail use but the river authorities decided that two bridges so close together constituted a hazard for shipping, and it was removed.