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2. Trench drain - Wikipedia

   en.wikipedia.org/wiki/Trench_drain

   Concrete will need to be poured to surround the trench drain so that the load can be transferred from the channel and grate to the surrounding areas. Pre-cast trench drains generally come in 4-inch (100 mm) widths but can range anywhere from a 1.75-inch (44 mm) slot to 2-inch (51 mm) wide channels with grates, and up to any size imaginable ...

3. Land drains - Wikipedia

   en.wikipedia.org/wiki/Land_drains

   The earliest type consisted of a "u" shaped trough onto which a flat lid was placed. Later the extruded clay pipe was developed. These are still used. These can be laid in an excavated trench, or a horizontal hole is formed in the ground using a mole plough and the pipes are forced in by means of a hand or mechanical press. By this means, heavy ...

4. Manhole cover - Wikipedia

   en.wikipedia.org/wiki/Manhole_cover

   Scotland's "great drain robbery" saw more than a hundred vanish in a few days. From Montreal to Gloucester to Kuala Lumpur, unsuspecting pedestrians stumbled into holes. In Newham, East London, nearly 200 grates and covers were stolen in 2004. [22] A manhole cover designed by artist Antony Gormley was stolen in 2013, ten years after its ...

5. Drainage - Wikipedia

   en.wikipedia.org/wiki/Drainage

   The interception rate of channel drainage is greater than point drainage and the excavation required is usually much less deep. The surface opening of channel drainage usually comes in the form of gratings (polymer, plastic, steel or iron) or a single slot (slot drain) that run along the ground surface (typically manufactured from steel or iron).

6. Grating - Wikipedia

   en.wikipedia.org/wiki/Grating

   A grating covering a drain (as illustrated) can be a collection of iron bars (the identical, elongated elements) held together (to ensure the bars are parallel and regularly spaced) by a lighter iron frame.

7. Storm drain - Wikipedia

   en.wikipedia.org/wiki/Storm_drain

   Storm drain grate on a street in Warsaw, Poland Storm drain with its pipe visible beneath it due to construction work. A storm drain, storm sewer (United Kingdom, U.S. and Canada), highway drain, [1] surface water drain/sewer (United Kingdom), or stormwater drain (Australia and New Zealand) is infrastructure designed to drain excess rain and ground water from impervious surfaces such as paved ...