Before knowing the reason why manhole covers are mostly in round shape, we need to know first the basic facts answering to this question, what is a manhole cover?
Installation and Maintenance Considerations
As manhole manufacturers, we often get asked about the purpose of manholes and the uses of manholes. And the answer is, that there are many functions of manholes when it comes to sewer or stormwater systems. The four main purposes of a manhole are:
Enhancing Security