There are worse things you could find under a manhole cover. A British homeowner decided that, after decades of living at the same property, he would finally see what was hidden under a mysterious ...
Practical Engineering on MSN
Don't open that manhole – what's really happening beneath your feet
Sewer systems are mostly out of sight — and out of mind. But beneath every manhole cover is a complex network of pipes, ventilation paths, junctions, and maintenance access points that keep cities ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results