Complex sentence: It has eight arches, is long and tall, and carries the Union Canal across Inglis Green Road and the Water of Leith at Longstone (just at the edge of Slateford) in south-west Edinburgh.
Split into simpler sentences: It has eight arches, is long and high above the Water of Leith. It carries the Union Canal across Inglis Green Road and the Water of Leith at Longstone (just at the edge of Slateford) in south-west Edinburgh.