After recently completing a PDH article for Informed Infrastructure entitled, ""How to Design a Culvert Reline Project." I thought it apropos that we take some

Hello all… how about a quick blog on PVC pipe and UV protection? I am often asked about the effects of UV exposure caused by sunlight on PVC sewer pipes and how

Reclaim Tunnels A Reclaim Tunnel refers to a buried conduit that encloses a material conveyor. The conduit is used to transport aggregate, sand, coal or other

During his State of the Union address earlier this year, President Trump called on Congress to produce a plan to introduce $1.5 trillion dollars in investment

*Not Quite Everything****More of a Refresher What exactly is liquid limit? What does plasticity actually mean? What’s the cut-off between a gravel and a sand? We

When a culvert or storm sewer reaches the end of its useful service life, the option to excavate and replace is commonplace. However, having the additional

WHAT IS FINITE ELEMENT ANALYSIS? Can you solve this equation by hand? x + 4 = 7How about this one? Now we need to solve that another 1000 times to get our

Ever had a project with an inconvenient site, whether it was crowded or remote? Or maybe even a project where lots of pipe was needed-and fast? Contech offers

I’ve recently been seeing engineers choosing what I feel are inappropriate Manning’s “n” coefficients for sewer design. Some choose too conservative values,

I am often asked, "How much does a reline project cost?". Before making an attempt to answer this let’s begin with some perspective, relative to traditional