We tend not to notice manhole covers, doing their work to keep pedestrians and traffic safe, until one fails and reveals the potentially dangerous drop lurking below.

However, at Globic Groundworks, we take manholes and their covers very seriously. In this blog post, we explain why.

Some interesting facts about manhole covers

Manhole covers may be everyday objects, but there are enthusiast “spotters” who seek out and photograph rare and unusual designs and collect the names of manufacturers.

If you’re wondering what keeps people fascinated by manhole covers, here are some interesting facts:

  • The first manhole covers were invented by the Romans (no surprise) in the First Century AD. Instead of iron, they were made of sandstone.
  • Older covers have a grid pattern on them to ensure that horseshoes don’t lose their grip.
  • Japanese city streets are famous for brightly coloured and elaborately decorated manhole covers.
  • Applicants for a job at Microsoft were said to be asked why manhole covers were round, to test their ability to think in fresh ways about a familiar object.*

Manhole cover repair service

Manhole covers are traditionally made of cast iron because it can resist traffic load and is relatively cheap. However, covers will eventually crack or shatter after years of constant traffic and weathering.

Globic Groundworks use the latest CCTV cameras to inspect manholes quickly and safely. This technology shows up any problems or potential areas for structural failure.

We can also repair covers where necessary, using advance rehabilitation and coating techniques, grouts or resins to ensure their continued safety.

Based in Aldershot, Globic Groundworks provide a full range of road related services to local authorities, businesses and home owners.

To find out how we can help you, call our office on 01252 310515.

*Possible answers:

  • A round cover can’t fall down a hole of the correct size, even if turned on its side. Like a square or oblong cover.
  • They can be made smaller for the aperture
  • They can be more easily moved around by rolling on their side.