The Forth crossing (north of Edinburgh) seems to show this progression quite nicely. https://commons.wikimedia.org/wiki/File:Forth_Replacement_Crossing_Artist%

The Forth crossing (north of Edinburgh) seems to show this progression quite nicely. https://commons.wikimedia.org/wiki/File:Forth_Replacement_Crossing_Artist%27s_impression.jpg https://commons.wikimedia.org/wiki/File:Forth_Replacement_Cr... Three bridges built in 1890, 1964 and 2017 respectively (from right to left in the picture above).