Pont Antoinette, Railway arch bridge in Sémalens, France.
Pont Antoinette is a stone railway bridge in Sémalens that spans the Agout river for approximately 89 meters with a single arch. It carries both rail and vehicle traffic simultaneously on its structure.
Engineer Paul Séjourné designed this structure in 1884 as part of France's railway expansion during the 19th century. The project was built when France was rapidly extending its rail network across regions.
The bridge reflects the industrial development of the 19th century and shows how local building traditions were combined with modern transportation requirements of that era.
The bridge is inspected and maintained regularly to safely carry trains and vehicles. Visitors can view the structure from the Agout riverbanks or from nearby roads that provide clear views of its design.
The bridge employs a dual-level design with both transportation types, a rare solution for river crossings of that era. This system allowed trains to operate independently from road traffic without requiring a separate structure.
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