ProductNov 01, 2025
From way back in time: Contech applies Culvert Renew in 1994
A look back at one of the earliest installations of Culvert Renew® HDPE slip-lining system in 1994.
Culvert Renew® by Poly Systems
HDPE Culvert Liner & Pipefor Rehabilitation and New Installation
Culvert Renew HDPE culvert liner installation during trenchless culvert rehabilitation
Culvert Renew® | HDPE Culvert Liner - Q & A
What It Is?
A helical-spiral HDPE culvert liner and pipe system manufactured by Poly Systems, Inc. for culvert rehabilitation and direct-buried HDPE pipe installations. 46 psi pipe stiffness per ASTM D‑2412 / F894, Thread‑Loc® interlocking joints, and 100‑year design life. Technical specifications cover sizing, wall profiles, and engineering data. For quick answers on fit, standards, and sizing, review the full culvert liner FAQ.
When to Specify It?
- Deteriorating metal, concrete, or plastic culverts needing culvert relining
- New culvert installations via open trench culvert installation or direct burial
- DOT, municipal, rail, or drainage projects requiring ASTM specification‑grade HDPE
- Sites where trenchless installation reduces cost, traffic disruption, or environmental impact
Best Fit Project Types?
- CMP culvert rehabilitation and concrete culvert relining
- Storm drain rehabilitation and replacement
- Highway, DOT, and railroad culvert infrastructure
- Municipal stormwater and drainage systems
- Direct-buried culvert pipe for new construction
See project examples from completed installations.
ASTM D-2412 / F894 • Specification-grade HDPE
Why Engineers Specify OurHDPE Culvert Liner
Culvert Renew® is engineered for municipal, DOT, rail, and drainage work where engineers need ASTM-based strength, reliable joints, and smooth hydraulic performance.
25+
Years in service
100 yrs
Design life
46 psi
Pipe stiffness
1M+ ft
Installs
Superior Strength
Pipe stiffness of 46 psi per ASTM D-2412 and ASTM F894, meeting municipal and highway specifications.
Field-tested performance
Thread-Loc® Connection
Interlocked helical joints that develop tensile strength and manage thermally induced seasonal contraction.
Field-tested performance
Versatile Installation
Push or jack into the host pipeline without joint separation. Flush ID/OD joint surfaces for smooth hydraulics.
Field-tested performance
Testimonials
What engineers are saying
“With proper prep, most culverts can be relined—avoids open‑cut headaches.”
Burlington Northern Santa Fe
We have learned through experience that with the proper preparation most all culverts can be relined using this type of culvert and it saves us the headaches that we faced when we used the open cut method.
Helical-spiral HDPE • Technology in action
See HDPE Culvert Liner Installation in Action
Watch how Culvert Renew® performs in the field and review the installation behavior engineers evaluate before specification.
Video courtesy of Poly Systems, Inc. For step-by-step culvert liner installation guidance.
Engineering news
Project Updates, Installation News, and Engineering Resources
Recent field stories, product updates, and installation guidance for engineers and contractors.
PressOct 29, 2025
Company Re-brands to Poly Systems, Inc.
New look reflects commitment to innovation and expanded capabilities in HDPE infrastructure solutions.
PressOct 29, 2025
Old site retired as Poly Systems forges ahead
After nearly three decades as Culvert Renew®, the company moves to Poly Systems, Inc., reflecting its capabilities in HDPE infrastructure solutions.
PressJun 10, 2025
Poly Systems Announces Leadership Transition
James Levingston named President & CEO, advancing the company’s mission in HDPE systems and infrastructure rehabilitation.
Common questions
Culvert Renew® | HDPE Culvert Liner FAQ
What is an HDPE culvert liner?
An HDPE culvert liner is a high-density polyethylene pipe inserted into a deteriorating culvert to restore structural integrity and extend service life. Culvert Renew® is a helical-spiral HDPE liner with interlocking Thread‑Loc® joints, 46 psi pipe stiffness per ASTM D-2412/F894, and a 100-year design life.
How does culvert relining compare to open trench replacement?
Culvert relining avoids full excavation by inserting a new HDPE liner into the existing host pipe. This reduces traffic disruption, lowers costs on most sites, and preserves the surrounding embankment. Open trench replacement may still be preferred when the host structure has fully collapsed or when alignment changes are needed.
What ASTM standards does Culvert Renew® meet?
Culvert Renew® meets ASTM D-2412 for pipe stiffness (46 psi) and ASTM F894 for polyethylene closed-profile wall pipe. It is also designed per AASHTO Section 18 for thermoplastic pipe structural requirements.
Can Culvert Renew® be direct-buried for new culvert installation?
Yes. Culvert Renew® can be direct-buried in open trench applications for new culvert installations where trenchless rehabilitation is not applicable. The same HDPE material, joint system, and pipe stiffness apply in both rehabilitation and direct-burial use cases.
What diameter range is available?
Culvert Renew® liners are manufactured in inside diameters from 10″ to 48″, sized to fit host pipes from 12″ to 120″. Contact engineering for sizing recommendations based on your host pipe material, diameter, and condition.
Have a project in mind?
Send pipe size, site conditions, and project goals. We’ll help you evaluate liner sizing, installation approach, and specification fit.