Chiselhampton has long been important as a crossing over the
River Thame. A bridge has existed since at least 1398, when a
presentment complained that "the King's road" at "Cheselhampton Brygwey" was flooded so that "men with horses and carts cannot pass thereby". In 1444 the villagers of Chiselhampton were granted
pontage: the right to levy a toll to maintain the bridge. At that time it had timber spans built on stone piers. A 1628 estate map recorded the bridge as "Doyley Bridge". Over the years it has been rebuilt with stone arches, altered by successive repairs, extended, and in 1899 widened with steel troughing. It is now long and has eight stone arches, By the time the
English Civil War broke out in August 1642 Chiselhampton was a strongly
Puritan community. In November of that year
King Charles I withdrew his court to
Oxford.
Royalist control of the bridges over the River Thame became vital to Oxford's defence, and by March 1643 the Royalists had gated Chiselhampton Bridge and allowed none to cross it "but on market days and sometimes during the daytime". By June 1643 the bridge was reported too damaged for vehicles to use, but still passable on horseback. On the night of 17 June
Prince Rupert led about 1,000 cavalry and 800 infantry from Oxford across the bridge After the
English Civil War the damage to the bridge was repaired. Its west face and parapet are 20th-century, from when the bridge was widened. Historically the
Oxford–Stadhampton main road has been called Oxford Lane where it passes through Chiselhampton. In 1664
John Doyley was licensed to divert part of the road to make room for him to enlarge his mansion. In the village it is joined by a road from
Clifton Hampden. This forms part of the route between
Abingdon and
Stadhampton and historically in Chiselhampton it has been called Abingdon Lane. Both roads are shown on estate maps dated 1628 and 1743. Since the early 1920s the main road has been classified B480 and the Clifton Hampden road has been classified B4015. ==Air crash==