Sandford Lock is a lock on the River Thames in England, situated at Sandford-on-Thames which is just south of Oxford. The first pound lock was built in 1631 by the Oxford-Burcot Commission although this has since been rebuilt. The lock has the deepest fall of all locks on the Thames at 8 ft 9in (2.69m) and is connected to a large island which is one of three at this point. The lock lies at the end of Church Lane in Sandford on Thames.

Nuneham Viaduct, also known as Nuneham Railway Bridge and the Black Bridge is near the town of Abingdon-on-Thames in Oxfordshire, England. It is a two-span, bowstring truss bridge that carries the Didcot to Oxford section of the Cherwell Valley Line across the River Thames between Abingdon Lock and Sandford Lock. Its name is derived from the neighbouring Nuneham House. The total length is 99 yards (91 m); the southern and northern ends are respectively 57 miles 24 chains (92.22 km) and 57 miles 29 chains (92.32 km) from Paddington.