The Old Exe Bridge is a ruined medieval bridge in Exeter, England. Construction of the bridge began in 1190 & completed in 1214. The bridge is the oldest surviving bridge of its size in England and the oldest bridge in Britain with a chapel still on it. It replaced several rudimentary crossings which had been in use sporadically since Roman times. The project was the idea of Nicholas and Walter Gervase, father and son and influential local merchants, who travelled the country to raise funds. No known records survive of the bridge's builders. The result was a bridge at least 590 feet (180 metres) long, which probably had 17 or 18 arches, carrying the road diagonally from the west gate of the city wall across the River Exe and its wide, marshy flood plain.  The site at the time of visit has now been a haven for tent dwellers.

More info here: https://en.wikipedia.org/wiki/Old_Exe_Bridge