There have been traffic signals on Abingdon Bridge for a couple of weeks as one of the arches needs repairing.
Looking down stream there are rounded arches.
On the other side are some older looking arches.
From Elizabeth Drury & Judith Thomas’s book More of Abingdon Past & Present, I see the bridge was built in 1416, first widened in 1820, and a major reconstruction took place in 1929 when the navigation arch was made wider.