Corrugated metal pipe culvert

A corrugated metal pipe culvert is a type of culvert that is made from corrugated metal pipe (CMP). Culverts are structures that allow water to flow underneath roads or other obstacles. They are commonly used in the construction of drainage systems for roads, highways, and other infrastructure projects.

Corrugated metal pipe culvert

A corrugated metal pipe culvert is a type of culvert that is made from corrugated metal pipe (CMP). Culverts are structures that allow water to flow underneath roads or other obstacles. They are commonly used in the construction of drainage systems for roads, highways, and other infrastructure projects.


Corrugated metal pipe culverts are made by rolling a sheet of metal into a wave-like shape and then joining the edges of the sheet together to form a tube. The corrugations, or waves, in the metal provide additional strength and rigidity to the culvert, making it more resistant to damage and collapse.


CMP culverts are available in a range of sizes and shapes to meet the specific needs of different applications. They can be round, oval, or box-shaped, and they can be made from a variety of different metals, including steel, and aluminum.


In addition to their use in the construction of culverts, CMP culverts are also used in a variety of other applications, including irrigation, water supply, and sewage systems. They are known for their strength and durability, as well as their ability to withstand high levels of pressure and stress. Corrugated metal pipe culvert’s shape also helps maintain the natural environment into which pipes are installed. For example, the arch shape allows wildlife to pass through without difficulty and also leaves stream beds intact.


Depth of cover

The minimum allowable depth of cover is the largest of:

For roads H=B/8+0.2(m) H=B/6(m) and not less than 0.6(m)

For railways H=B/4 and not less than 0.6(m)

There is a possibility to reduce depth of cover provided that suitable checking calculations will be made.


Durability

Flexible structurePlate thicknessKinds of standard corrosion protectionRequired average min value(um)
plates≧6mmHot zinc galvanizing85
≧3mm do < 6mmHot zinc galvanizing70
≧1.5mm do < 3mmHot zinc galvanizing55
Bolts and nuts-Hot zinc galvanizing45



  • Highway ConstructionHighway Construction
  • Mine ProjectionMine Projection
  • Municipal EngineeringMunicipal Engineering
  • Irrigation EngineeringIrrigation Engineering
  • Railway Construction ProjectionRailway Construction Projection
  • Other ApplicationOther Application

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