HDPE Caissons

What is an HDPE caisson?

An HDPE caisson is a large, cylindrical structure made from high-density polyethylene, designed for deep foundation or containment use. It’s commonly used in environmental, industrial, or municipal applications where durability and chemical resistance are critical. These caissons are lightweight, corrosion-resistant, and built to handle harsh conditions.

What are the advantages of HDPE caissons over concrete or steel?

HDPE caissons are much lighter than concrete or steel, making them easier to transport and install. They won’t rust or corrode, and they offer excellent chemical resistance—especially important in wastewater or landfill environments. Plus, HDPE is flexible, helping the structure adapt to soil movement without cracking.

What sizes are available for HDPE caissons?

HDPE caissons can be fabricated in a wide range of diameters and lengths based on the needs of the project. Custom fabrication allows for precise sizing to fit job-specific requirements. Plastic Fusion can design and build caissons tailored to your specs for both new installations and retrofits.

Where are HDPE caissons commonly used?

They’re commonly used in landfill gas collection, stormwater control, leachate management, and deep foundation systems. HDPE’s chemical resistance makes it ideal for environmental containment, while its strength and low weight are well-suited to construction and civil infrastructure.

How long do HDPE caissons last?

With proper installation, HDPE caissons can last several decades. The material is UV-resistant, non-corrosive, and unaffected by most chemicals found in soil and groundwater, which all contribute to a long service life with minimal maintenance.