A culvert is a tunnel or pipe that allows water to flow under a road, railway, or pathway. It's usually installed to manage stormwater or stream flow and prevent flooding or erosion.
A SIRIM culvert refers to a culvert that meets the Malaysian quality standards certified by SIRIM (Standards and Industrial Research Institute of Malaysia). These culverts are tested for:
Strength
Durability
Compliance with local construction codes
Reinforced concrete (most common for roadworks)
HDPE (plastic) for lighter or temporary uses
Steel or metal for heavy-duty or industrial projects
Road and highway drainage
Irrigation systems
Bridge and embankment support
Railways and footpaths
Rainwater and stormwater management