Complex sentence: It was built by John Rennie and chief engineer John Thomas, between 1797 and 1801 and completed in 1805 and named after Charles Dundas, the first chairman of the Kennet and Avon Canal Company.
Split into simpler sentences: It was built by John Rennie and chief engineer John Thomas, between 1797 and 1801 and completed in 1805. It is named after Charles Dundas, the first chairman of the Kennet and Avon Canal Company.