List of longest arch bridge spans
This list of the longest arch bridge spans ranks the world's arch bridges by the length of their main span. The length of the main span is the most common way to rank bridges as it usually correlates with the engineering complexity involved in designing and constructing the bridge. If one bridge has a longer span than another it does not necessarily mean that the bridge is longer from shore to shore or from abutment to abutment.
Since each bridge has its own specific characteristics, and these are large structures, the very definition of span can vary from one bridge to another. Most use the span at the axis of the arch, as if the structure had a very thin thickness, and the intersection of this axis with the arch's fixed supports, similar to a hinged arch bridge. This definition is called calculated span. Others use the entire arched bridge section, separated from its approach viaducts, which is often the value between the two piers on each side of the arch. This is the case for bridges with multiple spans, large suspension or cable-stayed bridges use this definition of the span at the axis of their towers. Some, however, use the net span or the total external length of the arch.
Completed bridges
Notes: CFST is concrete filled [steel tube].| Name | Span meters | Material | Year opened | Location | Country | Ref | ||||||||||||||||||||||||
| Tian'e Longtan Bridge | Concrete | 2024 | Tian'e County, Guangxi |  ChinaConvert|560|m|ft|0|abbr=on|sortable=on|adj=ri0Coord|type:landmark|qid=Q109351361|format=dms|display=inlineUnder construction
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ChinaConvert|600|m|ft|0|abbr=on|sortable=on