Actually, it is.. Sort of. The Romans named them viaducts, and the earliest ones were erected in the same manner as the famed aqueducts. Viaducts are often made up of a sequence of several bridges joined by arch constructions or spans between towering towers built of stone, concrete, iron, or steel. The word "viaduct" comes from Latin via (way) + ducatum (shown), indicating a way over a river or other body of water.
The first known viaduct in Europe was built by Julius Caesar around 50 B.C. It was used to cross the River Rhone near Dijon, France. Other viaducts followed in Europe, some of which remain intact today. They were mainly used for military purposes or to provide access to major cities. For example, the Great Wall of China consists mostly of ancient European viaducts brought back by the Chinese after their conquest of Europe.
In North America, the first viaduct was built by Alexander MacKinnon in 1829 over the St. Lawrence River in New York City. It was an iron bridge that was later replaced by a wooden one. In 1832, another viaduct was built across the Niagara River in Buffalo, New York, this time of stone. Both these viaducts were demolished after they were no longer useful for transportation purposes.
The next viaduct to be constructed was the Welland Canal Bridge in 1872.
The Landwasser Viaduct became well-known among engineers due to the innovative procedures utilized in its construction. Scaffolding was not employed to construct the pillars, as was the case with previous arch bridges. Instead, steel towers were erected, and stone pillars were built around them, stone by stone. The whole process took more than two years.
This unique approach was chosen to provide workers with maximum visibility of the ongoing construction process. The decision was made by engineer Carl Hoffmann who wanted to have a close look at the work done by different teams of builders along the bridge site. Before this project, all pillar-supported bridges had been built without scaffolding. Here, for the first time, scaffolding was used to protect workers from heavy rain and wind.
The Landwasser Viaduct is an arch bridge that connects Landwasser with its suburb Ungarga in Austria. It carries six lanes of traffic over the A4 motorway. The bridge was opened to traffic on August 15, 2001. Its length is about 400 meters (0.3 miles). It is one of the smallest vehicular bridges in Europe. The total cost of the project was $18.5 million. The main contractor was Kieninger AG with contribution from ADM Bridge Group LLC. The design team consisted of 33 people including Hoffmann himself. The technical director was Heinz Werner Leitner. The architect was Dietmar Wübbe.
A viaduct is a long bridge or group of bridges that are generally supported by a number of arches or on spans between towering towers. A viaduct's function is to carry a road or railway over water, a valley, or another road. There are several types of viaducts: arch and tunnel, cable-stayed, floating, open, parabolic, roller coaster, truss, and wall.
The word "viaduct" comes from Latin via (way) + ducatum (shown), indicating a way over a river/lake/sea/gorge.
Examples of viaducts in use today include the Brooklyn-Queens Expressway in New York City, the Golden Gate Bridge in San Francisco, and the Sydney Harbour Bridge in Australia. Oldest known viaducts date back more than 5,000 years. They are found in North America at sites such as Rockbridge County, Virginia and Kirtland, Ohio.
It was during this time that the first modern viaducts were built, including one in Cincinnati that remains standing today. In 1835, the term was used for the first time to describe a bridge over the River Wye near Shrewsbury, Wales.