Based on where you are from, different countries have different terms for "storm drain". abc

Based upon where you are from, different countries have different terms for "storm drain".
Accordingly to Wikipedia, a storm drain is largely 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 states, this is commonly known as commercial floor drain covers " or "storm sewer".
In great britan, this is popularly known as "surface water drain" or "surface water sewer".
In Australia and New Zealand, it is also known as "stormwater drain".
And there you have it, the next time you hear someone mentioning "storm drain", "storm sewer", "surface water drain","surface water sewer" and "stormwater drain", you now know they mention exactly 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 avoid flooding.
Although storm drains perform 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 might eventually trigger flooding.
To make sure 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 concentrate on steel reinforced drain covers (gratings) that cover your storm drains while preserving the aesthetic elements of the architecture around the drain covers.