Engineered for Big Challenges
Custom-fabricated HDPE systems designed for large-scale, high-capacity infrastructure—built to perform in demanding structural applications.
Solutions for the Largest and Most Complex Projects
Across combined and sanitary sewer systems, process water applications, outfalls, and vertical shafts, large-diameter and structural HDPE solutions require engineering precision, proven durability, and on-site expertise. Infra Pipes’ Weholite® technology delivers high-performance, custom-engineered systems for gravity flow and low-pressure applications—offering structural strength, installation flexibility, and long-term reliability without the corrosion risks of traditional materials.
Explore Infra Pipes Products for Large Diameter & Structural Systems
Strength, Flexibility, and Customization in One System
HDPE large-diameter and structural products offer unmatched benefits for specialized infrastructure:
Manufactured in diameters up to 132 inches (3.35m)
Lightweight for easier transport and faster installation
Fully customizable to project specifications
Fusion-welded joints for leak-free performance
Resistant to corrosion, abrasion, and chemical exposure
Applications Include:
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Combined sewer overflow (CSO) / sanitary sewer overflow (SSO) detention systems
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Stormwater storage and treatment tanks
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Outfalls and marine pipelines
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Vertical access shafts and manholes
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Culverts, rehabilitation liners, and structural rehab solutions
Fabricated to Meet the Highest Standards
Infra Pipes large-diameter and structural systems are manufactured and tested to meet or exceed:
ASTM F894 for profile wall HDPE pipe
Custom-engineered specifications for unique designs
Lighter Weight, Lower Impact, Longer Life
Large-diameter HDPE systems offer a reduced carbon footprint compared to concrete and steel due to lighter weight and easier transport. Their long service life minimizes the need for replacement, and corrosion resistance reduces maintenance. At the end of their operational life, HDPE components can be recycled—supporting the circular economy while meeting long-term infrastructure goals.
Have a complex or large-scale project? Infra Pipes’ in-house team provides guidance and support for custom system development, bid preparation, and solutions tailored to the most demanding structural challenges.