Masonry Bridges, Viaducts and Aqueducts

For 2,000 years the most durable spanning structures have been built of masonry, and the surviving bridges of the Roman Empire have challenged master masons, architects and engineers to emulate and surpass them. Down the centuries, bridge-builders have been commissioned by monarchs, bishops, councils of state, cities, private individuals and, more recently, waterway and railway companies. The stud...