Isis Bridge is a modern road bridge across the River Thames

River Thames

The River Thames flows through southern England. It is the longest river entirely in England and the second longest in the United Kingdom. While it is best known because its lower reaches flow through central London, the river flows alongside several other towns and cities, including Oxford,...

 just south of Oxford

Oxford

The city of Oxford is the county town of Oxfordshire, England. The city, made prominent by its medieval university, has a population of just under 165,000, with 153,900 living within the district boundary. It lies about 50 miles north-west of London. The rivers Cherwell and Thames run through...

, England. It carries the Oxford Ring Road

Oxford Ring Road

The Oxford ring road is a ring road around the city of Oxford, England. It is a dual carriageway for most of its length apart from a short section to the North between the Woodstock and Banbury Roads....

, part of the A423 road

A423 road

The A423 road is a primary A road in England which leads from central Banbury to the A45 near Coventry. It starts in Banbury town centre as Southam Road and goes through the Southam Road Industrial Estate, then just north of Banbury it crosses over the M40, from there it passes close to several...

, across the Thames on the reach between Sandford Lock

Sandford Lock

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...

 and Iffley Lock

Iffley Lock

Iffley Lock is a lock on the River Thames in England near the village of Iffley, Oxfordshire. It is on the southern outskirts of Oxford. The original lock was built by the Oxford-Burcot Commission in 1631 and the Thames Navigation Commission replaced this in 1793...

.

The bridge was built in the 1960s and opened to road traffic in 1965 when the section of the ring road between South Hinksey

South Hinksey

South Hinksey is a village and civil parish just over south of the centre of Oxford. The parish includes the residential area of Hinksey Hill about south of the village....

 and Heyford Hill was opened. It is a single arch structure, built of 5,000m² steel by British Constructional Steelwork Association for Oxfordshire County Council

Oxfordshire County Council

Oxfordshire County Council, established in 1889, is the county council, or upper-tier local authority, for the non-metropolitan county of Oxfordshire, in the South East of England, an elected body responsible for the most strategic local government services in the county.-History:County Councils...

who are responsible for its maintenance. The bridge required a full wet and dry blast and coating system to the steelwork in 2003 when it was also strengthened.