Access Chamber
An access chamber (or manhole) is a structure designed to allow access to an underground service, such as a stormwater pipe or a sewer.
Drainage
In the drainage arena an access chamber might be typically be referred to as a Junction Pit, but the Queensland Urban Drainage Manual refers to both manhole chambers and junction structures.
Sewerage
In the case of sewerage WSAA prefers the use of the term maintenance hole to manhole.
Construction
Access Chambers are usually constructed from reinforced concrete, either precast or formed insitu.
Other construction materials that can be used to construct manholes include: