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Illustrated diagram of a masonry bridge with labels for its structural components: parapet, fill, backfill, spandrel walls, arch barrel, pier, abutment, wing, and wing walls.

Illustrated diagram of a masonry bridge with labels for its structural components: parapet, fill, backfill, spandrel walls, arch barrel, pier, abutment, wing, and wing walls.

an image of a masonry bridge, well labelled, illustrates the key elements to a masonry bridge. Basic structural element of masonry bridge comprises the fill, arch barrel, spandrel walls, abutments, wing wall, pier, parapet, and backfill. it must show arrows See more