Hanson Pipe & Precast

Home / Products / Precast Manholes and Wet Wells

Uses
Precast Circular Manholes are used in sanitary sewer and storm drain systems for access, observation and junctions.

Precast Circular Vertical Structures are used for pump stations, wet wells, stormwater management structures and impoundment overflow structures.

Sizes
Precast Circular Manholes and Vertical Structures are normally available in diameters of 48 inches (1200mm) through 120 inches (3600mm).

Application
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 Vertical Structures can be used for the following:

	Wet wells
	Sanitary or stormwater pump stations
	Overflow structures for ponds

Precast Circular Manholes and Vertical Structures can be provided with the following features:

	Protective linings
	Flexible pipe-to-manhole connections
	Custom openings
	Custom tops

Joints
The following joints are normally available for Circular Manholes and Vertical Structures:

	Single-offset with profile rubber gasket
	Confined O-ring rubber gasket
	Preformed mastic or butyl gasket

Applicable Specifications
The following specifications apply to precast circular manholes and vertical structures:

	ASTM C478/AASHTO M199 — Precast Reinforced Concrete Manhole Sections
	ASTM C443/AASHTO M198 — Joints for Circular Concrete Sewer and Culvert Pipe Using Rubber Gaskets
	CSA Standards CAN/CSA A257.4 Precast Reinforced Circular Concrete Manhole Sections, Catch Basins and Fittings

	© 2007 Hanson Pipe & Precast. All rights reserved. Site Map Legal