
Unlike circular pipes, arch-shaped culverts present a unique challenge when it comes to structural rehabilitation. Their non-round geometry and sometimes integrated parapet walls mean that standard sliplining methods don't always apply. However, just because a culvert isn’t round doesn't mean it can’t be effectively relined.

Why have a preconstruction meeting for pipe? Engineers have been designing various types of pipe for hundreds of years, while contractors have been installing it for hundreds of years. What needs to be discussed? It’s fair to say that all stake holders (owner, engineer, contractor and manufacturer) want a successful project. Taking the time a week prior to installation to cover key items will save time, and money, by recognizing and mitigating any issues before they arise.

There are limited options for verifying a large to ultra-large diameter sewer pipe. You can do visual inspections, low-pressure air using isolation rigs & bladders or hydrostatic methods. These are either not effective or expensive and time consuming. A new method has been introduced to the industry via Contech Engineered Solutions’ (Contech) DuroMaxx® Steel Reinforced Polyethylene (SRPE) Pipe and the QuikJoint® Ultra High-Performance Technology.

We are often asked, “How much does a reline project cost?” While this is a straightforward question, the answer depends on multiple factors. Before attempting to provide a cost estimate, it’s important to consider the broader perspective—particularly in comparison to traditional open-cut replacement.

Our commitment to quality is not just about meeting industry standards; it’s about exceeding expectations, ensuring peace of mind, and delivering long-term value. Customers choose Contech because they know they can rely on our products to perform as promised, even in the most demanding conditions. This dedication to quality manufacturing enables us to stand out as a trusted partner in the industry, ensuring that every product we deliver is crafted with precision, integrity, and care.

In the realm of sanitary sewer storage solutions, large diameter pipes stand out as a beacon of cost efficiency and practicality. These pipes, often ranging from 30 inches to 120 inches in diameter, offer a multitude of benefits that cater specifically to the needs of municipal and industrial wastewater management systems.

When faced with designing culverts, storm sewers, or underground detention systems, one of the critical decisions you’ll make as the Engineer of Record is pipe selection. Corrugated Metal Pipe (CMP) is often the go-to solution for stormwater applications, and for good reason.
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