New Semington Aqueduct carries the Kennet and Avon Canal

Kennet and Avon Canal

The Kennet and Avon Canal is a waterway in southern England with an overall length of , made up of two lengths of navigable river linked by a canal. The name is commonly used to refer to the entire length of the navigation rather than solely to the central canal section...

 over the carriageway of the A350 road Trowbridge

Trowbridge

Trowbridge is the county town of Wiltshire, England, situated on the River Biss in the west of the county, approximately 12 miles southeast of Bath, Somerset....

 Bypass, at Semington

Semington

Semington is a village and civil parish in Wiltshire, England. The village is about south of Melksham and about northeast of Trowbridge.The parish includes the hamlets of Littlemarsh and Littleton....

 in west Wiltshire

Wiltshire

Wiltshire is a ceremonial county in South West England. It is landlocked and borders the counties of Dorset, Somerset, Hampshire, Gloucestershire, Oxfordshire and Berkshire. It contains the unitary authority of Swindon and covers...

, England

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

. Although the construction of new canals is no longer common practice in England, new aqueducts such as this are sometimes built in relation to new roads or road widening schemes.

It has two channels of 5 metres with a 3.5 metres towpath and a 3.5 metres maintenance access path on either side.