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.
Helical-spiral HDPE • Culvert renewal made simple
We're Not Just Another Pipe CompanyWe reshape infrastructure.
Revolutionary helical-spiral HDPE pipe technology for superior culvert renewal solutions.
Trusted for DOT & municipal projectsDesigned for rapid trenchless installs
CulvertRenew installation in progress along 540 ft springs
Next-gen Materials • Proven in the field
Culvert Renew Advanced Pipe Technology
Engineered for durability, performance, and seamless installation.
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
Culvert Renew in Action
See how design turns into real-world performance with rapid trenchless installs.
Video courtesy of Poly Systems, Inc. For step-by-step installation, see theInstallation Bulletin
Latest news
Updates and announcements
Read the latest from Poly Systems, Inc.
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.
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