Precast concrete manholes are an integral component of any modern sewer system. A properly designed and installed precast concrete manhole system provides superior watertight performance compared with competing methods and materials. A typical precast concrete manhole can be installed 500 feet deep and more, because lateral forces act equally around the periphery, which places the section in pure compression - the ideal state for concrete. Precast concrete manhole sections are produced in a controlled environment, thus exhibiting high quality and uniformity.
Uses
Precast circular concrete manholes are used in sanitary sewer and storm drain systems for access, observation and junctions. They are a good choice for:
. Pump Stations
. Wet Wells
. Stormwater Management Structures
. Impoundment Overflow Structures
All manholes and vertical structures can be provided for highway, railroad or aviation loading.
Applications
Precast circular manholes can be used for the following:
. access to the system for maintenance
. observation points
. changes in pipe size
. changes in pipe shape
. changes in direction of pipe
. junctions for multiple pipes
Precast circular manholes and vertical structures can be provided with the following features:
. Precast Invert Channels
. Protective Linings
. Flexible Watertight Pipe-To-Manhole Connections
. Custom Openings
. Custom Tops
