Manholes are typically used to provide access to pipelines, junction points, valve chambers, sump pits, and underground detention tanks.
Ocean Pipe manufactures precast circular manholes in 900mm to 3000mm nominal diameters. Manhole riser sections in diameters up to 2400mm are stocked in standard 0.3m, 0.6m, 0.9m, and 1.2m heights. Manhole sections can be customized to suit unique project specifications by adding flat bases, prebenching, cored holes and flexible connections.
Ocean Pipe manufactures manholes to meet the following standards:
- ASTM C478 Standard Specification for Precast Reinforced Concrete Manhole Sections
- CSA 257.4 Standards for Concrete Pipe and Maintenance Hole Sections