Slideshow

Manholes

Precast concrete manholes are used in sanitary sewer and storm drain systems for  maintenance access, observation points, changes in pipe size or direction, and junctions for multiple pipes.

 

EBR QPL:  Gainey’s is an approved manufacturer of Precast Manholes for EBR Parish.


Specifications

 

CONCRETE: Class 1 concrete with design strength of 4500 PSI at 28 days
REINFORCEMENT: Conforms to ASTM C478 – “Standard Specification for Precast Reinforced Concrete Manhole Sections”
CASTING: Cast iron manhole ring and cover shall be nominal 24 inch and shall be traffic duty.

 


Options

  • Straight Base or Extended Base  Sections
  • Riser Sections in 1’, 2’, 3’, and 4’ Sections
  • Eccentric Cones in 2’ and 3’ Sections
  • Grade Rings in 4” and 6” Sections or as Required
  • Flexible rubber connectors available in most sizes to accommodate pipe penetration
  • Interior/Exterior Coating and Steps

Standard Drawings Available

48″ Extended Base PDF
60″ Air Release PDF
EBR 48″ Standard PDF
48″ New Orleans Style with Brick Grade Rings PDF

 

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