Dundas Aqueduct carries the Kennet and Avon Canal over the River Avon and the Wessex Main Line railway from Bath to Westbury. The nearest village is Limpley Stoke. It was built by John Rennie and chief engineer John Thomas, between 1797 and 1801 and completed in 1805. James McIlquham was appointed contractor. It is named after Charles Dundas, the first chairman of the Kennet and Avon Canal Company.