The significance of the construction of corrugated steel small bridge and culvert
Since then, corrugated steel pipe culvert products have been widely applied in highway and railway engineering in the US and Canada, and the corresponding technical standards and design manuals, construction and installation manuals have been worked out.
Japan, South Korea and other East Asian countries began to formulate technical specifications for metal bellows and culverts from 80s to 90s in the last century, which began to be widely used.