A half viaduct is a structural construction that features the elevated portion of a bridge that spans over a river, valley, or any other gap, occupying only one side of the gap. It is a variant of a standard viaduct, which consists of a series of spans or arches supporting a roadway or railway track. However, unlike a conventional viaduct that typically spans the entirety of the gap, a half viaduct incorporates only one side, leaving the other side open.
The purpose of a half viaduct is to provide a passage for transportation while minimizing materials and construction costs. By utilizing just one side of the gap, it allows for a more economical design and efficient use of resources, as the construction of a full viaduct is often more complex and expensive. Half viaducts are commonly employed in scenarios where the geographical and environmental conditions are conducive to a one-sided construction, or when there are budget or time constraints.
These structures serve to connect two sections of land separated by a gap, enabling the smooth flow of vehicular or train traffic. The half viaduct provides stability and support to the elevated section of the road or railway track, ensuring safe passage over the void beneath. It is engineered to withstand the forces of weight, weather, and other external factors, often with the use of steel, concrete, or other construction materials.
In summary, a half viaduct is a bridge-like structure that spans half of a gap, offering a cost-effective solution to connect regions separated by a natural or man-made void, facilitating efficient transportation while optimizing resource utilization.
