[1][non-primary source needed] However, as it is more common to run pipelines for centralized heating systems overhead, for this application even small pipeline bridges are common.
As there is normally a steady flow in pipelines, they can be designed as suspension bridges.
[citation needed] One of the world's longest pipeline bridges, built in 1970, is 1,040 meters long and crosses the Fuji River in Shizuoka Prefecture of Japan.
[3] The highest at 393 m is Hegigio Gorge Pipeline Bridge in Papua New Guinea.
This article about a specific type of bridge is a stub.