Subject to where you are from, different countries have different terms for "storm drain".
Accordingly to Wikipedia, a storm drain is basically a tunnel that carry runoffs (rain) from What is grate ? . For a layman, it helps to think along the line of sewage system which works beneath our cities.
In the US, this is popularly known as "storm drain" or "storm sewer".
In What is grate ? united kingdom, this is also known as "surface water drain" or "surface water sewer".
In Australia and New Zealand, it is commonly known as "stormwater drain".
And there it is, the very next time you hear someone mentioning "storm drain", "storm sewer", "surface water drain","surface water sewer" and "stormwater drain", congratulations, you know they mean 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 in order to avoid flooding.
Although Precisely what is grating ? do 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 go into the storm drains and cause choking which may eventually cause flooding.
To guarantee storm drains serve their purposes while minimizing the potential risks posed to pedestrians and to prevent choking of the drains, drain covers (gratings) are widely-used to cover the inlets (openings) of the storm drains to achieve the two purposes.
At Jonite, we specialise in steel reinforced drain covers (gratings) that cover your storm drains while preserving the aesthetic areas of the architecture around the drain covers.