 Eventually Bath stone from Bathampton Down was used enabling greater stability.The aqueduct consists of three arches and is long with a central elliptical arch of 60 ft (18.3 m) span with two side arches each semicircular and 34 ft (10.4 m) across, all with V-jointed arch stones.The spandrel and wing walls are built in alternate courses of ashlar masonry and rock-faced blocks.