Manholes: The Ultimate Resource

Covers, accessories, engineering, installation, maintenance and more. Everything you’ve ever wanted to know about the underground world of manholes.

Manhole Basics

According to Dictionary of Construction, a manhole is, “a vertical access shaft from the ground surface to a sewer or stormwater line…, usually at a junction, to allow cleaning, inspection, connections, and repairs.”

manholes: the ultimate guide for everything manholes

The Purpose of Manholes

Manholes serve many purposes when it comes to sewer or stormwater systems. The four main purposes of a manhole are:

  1. To facilitate inspections of the sewer or stormwater system as well as maintenance projects such as cleaning or removal of obstructions within the sewer or stormwater line
  2. To assist in ventilation of the sewage system by allowing gases to escape
  3. To allow the municipality to join sewer or stormwater systems, change the direction of the sewer or stormwater system, or align the sewer or stormwater system
  4. To assist in ensuring the sewer or stormwater line is laid in convenient lengths