Pipe Issue Blog

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North America's underground infrastructure is crumbling at an alarming rate, so smarter, more cost-effective and sustainable practices are needed.

Broader use of PVC pipe would solve this problem and enable municipalities to spend taxpayer dollars more wisely. To do this, local governments and utilities need to modernize outdated procurement practices that ignore corrosion-proof PVC pipe.

Explore our web site and visit my blog to learn about the exceptional performance and environmental attributes of PVC pipe, and why it should be included in every bid for water and wastewater infrastructure. To connect to my blog, bookmark this page or link our Pipe Issues Blog to your RSS feed program.

Industry expert and Uni-Bell PVC Pipe Association Executive Director Bruce Hollands shares the facts.

PVC Pressure Pipe Under Roads

Posted By Bruce Hollands on Apr 18, 2018

Some pressure pipe designers and owners are not comfortable with the use of PVC pressure pipes under roads. Their concern is that traffic loads will cause the pipe to over-deflect (ovalize).


Engineering analysis and experience have shown that over-deflection is not a problem:

  • Calculations demonstrate that properly designed and installed PVC pipes will undergo deflections that are much less than allowed by AWWA standards.
  • PVC pressure pipe has been successfully installed and operated under roads for more than fifty years.

For our Tech Brief on PVC pipe under roads, click here. The calculated pipe deflections shown in the tables provide large safety factors that should alleviate the industry’s concerns.