Used for the conveyance of Sanitary Sewerage intersections and clean out points. Design Precast & Pipe, Inc. offers a full line of Sanitary Sewer Components ranging from small diameter manholes to large diameter round and square lift stations.

We also offer precast concrete inverts, or flow channels, to eliminate the need to precast these in the field. 

Inverts 004.jpg
Sewer Manholes

  • No lifting holes in any sanitary sewer structure

  • Any size round manholes up to 120" diameter

  • Single offset gasket joint or Butyl Mastic joints


ASTM C 478 - Standard specification for Precast Reinforced Concrete Box Sections for Culverts, Storm Drains, and Sewers​

AASHTOM M 199 - Standard specification for Precast Reinforced Concrete Manhole Sections

ACI Standard 318 - Building Code Requirements for Structural Concrete

Sewer Manhole
Wet Wells- Lift Stations

  • Many different types, can be made to meet state and local requirements

  • Square and Round available

  • Allows ability to set well in one day

  • Reduces having scaffolding and forms to pour in field, also reduces the amount of sheet piles and excavations necessary

Wet Well
Lift Station
Pipe Invert

  • New equipment provides Design Precast the ability to pour a perfectly formed invert/flow channel at the plant 

  • Reduces time in field

  • Structure ships complete with invert and boots, all the contractor does is set it in place!

Pipe Invert
Protection Options

  • Coating with specified material 

  • Waterproofing admixtures

  • Anti-Microbial Admixtures

Xypex Manhole