CONTECH ENGINEERED SOLUTIONS

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.

Infiltration systems are a cornerstone of modern stormwater management—but are we designing them to last? As their use expands, especially underground, new research raises concerns about sediment buildup, maintenance challenges, and long-term performance. This article takes a closer look at whether our current practices are protecting infiltration capacity—or quietly eroding it.

Stormwater parks are an innovative solution for managing urban runoff while providing recreational and ecological benefits to communities. However, in dense urban areas, the large amount of land traditionally required for these parks poses a major challenge due to high costs, limited space, and competing land uses. This blog explores how high-rate bioretention systems offer a compact, efficient alternative that enables the development of successful stormwater parks even in space-constrained environments, with real-world examples from Washington State.