Initially, William's elder brother Robert was intended to take over his father's business, but when Robert opted for a military career, William began to assist his father, surveying land for the
Eau Brink Cut, on the
River Great Ouse, in 1797. He also undertook work on the
Gloucester and Berkeley Canal. he became chief engineer of the company, a post he held until 1861. He joined the
Institute of British Architects on its foundation in 1834, and the
Institution of Civil Engineers in 1842. He gave evidence to
Edwin Chadwick's
Health of Towns reports of 1844–1845. ==Personal life==