Expressway Underpass Drainage System


At an expressway junction

This pump system serves to drain a municipal road that passes under an expressway junction, via two rainwater regulating pits.

Rainwater that falls over a wide area of the junction is not directly channeled to the small class river running nearby. Instead, while rain is falling, it is temporarily collected in a holding pond where it is held until it can be pumped safely to the river after the water level in the river has lowered.

A municipal road that passed under a national highway was extended in the east-west direction when the junction was built. Two rainwater drainage pits were built and pumps were installed to drain rainwater collected from the underpass.


Pumps with Channel Impeller Model : B [ 4 units ]
Pumps with Vortex Impeller Model : U [ 2 units ]

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