Subject to where you are from, different countries have different terms for "storm drain".Based on where you are from, different countries have different terms for "storm drain".
Accordingly to Wikipedia, a storm drain is essentially a tunnel that carry runoffs (rain) from urban areas. For a layman, it helps to think along the line of sewage system that works beneath our cities.
In the US, this is actually typically referred to as "storm drain" or "storm sewer".
In great britan, this is commonly known as "surface water drain" or "surface water sewer".
In Australia and New Zealand, drainage grill is best known "stormwater drain".
And there you have it, the very next time you hear someone mentioning "storm drain", "storm sewer", "surface water drain","surface water sewer" and "stormwater drain", you now know they mention the same thing.
Functions of storm drain include draining excess water (rain or storm water) and ground water from pavement, streets and carparks into rivers and streams to prevent flooding.
Although storm drains accomplish a amazing job of draining excess water from the urban areas, the inlets are essentially openings where left uncovered can pose a hazard to pedestrians. Left uncovered, rubbish will enter the storm drains and cause choking which can eventually cause flooding.
In order to guarantee storm drains serve their purposes while minimizing the dangers posed to pedestrians and to prevent choking of the drains, drain covers (gratings) are used to cover the inlets (openings) of the storm drains to achieve two purposes.
At Jonite, we specialise in steel reinforced drain covers (gratings) that cover your storm drains while preserving the aesthetic components of the architecture around decorative drainage grates .