George Staunton was keen on bridges - by the time he had finished his garden there were five of them in total. This one was the grandest, which was described as "a brick bridge, of one arch, surmounted with a Corinthian Portico, and placed across the chief outlet. It is taken from a design in Papworth's Garden Architecture."
The 'Corinthian' name comes from the type of column used in the design. Classical Greek architecture defined the Corinthian style as having a slim fluted column with an ornate carved top showing acanthus leaves.
Staunton admits that his design was not original, but copied from one by John Buonarotti Papworth, a prolific architect of the early 19th century.