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

Based upon 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 landscape drainage solutions . For a layman, it helps to think along the line of sewage system that works beneath our cities.
In the states, this is also known as "storm drain" or "storm sewer".
In great britan, this is actually also known as "surface water drain" or "surface water sewer".
In Australia and New Zealand, it is commonly 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", congratulations, you know they talk about 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 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 go into the storm drains and cause choking which can eventually lead to flooding.
In order to guarantee storm drains serve their purposes while minimizing the 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 two purposes.
At Jonite, we concentrate on steel reinforced drain covers (gratings) for your storm drains while preserving the aesthetic aspects of the architecture around the drain covers.