Contech provides innovative, cost-effective site solutions to engineers, contractors, and developers on projects across North America. Our portfolio includes bridges, drainage, erosion control, retaining wall, sanitary sewer, and stormwater management products.
Supporting every aspect of your project, our extensive network of local experts are here to help, providing agency and regulatory guidance, engineering calculations, site-specific drawings, solution development, cost estimates and installation support. We look forward to working with you on your next project.
Pipe materials for drainage systems, culverts, and sanitary sewer applications.
Biofiltration, treatment, and detention solutions for every site.
Temporary and permanent erosion control & hard armor solutions for any application.
Innovative, modular solutions for crossings, culverts, and bridges.
Segmental retaining wall systems to fortify infrastructure, secure soil, and reinforce grade change.
Permanent, fully structural solutions for rehabilitating culverts and pipe.
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When there is a need for a pipe, and it is in a salt water application, there is really only one perfect solution…….CORLIX!!!Contech’s CORLIX® pipe, also known in the industry as Corrugated Aluminum Pipe (CAP), has an endless number of characteristics that makes it the best choice when dealing with salt water or brackish conditions. First and
First thing’s first, let’s talk about some basic hydraulics. Most shorter length culverts are inlet controlled and just about all storm sewers are outlet controlled. So for storm sewers, the flow is limited by the outlet conditions of the pipe and the roughness inside the pipe matters. The primary method to determine the flow rate (Q) of a storm
In last month’s blog post, we took a look at the Point on a Curve sizing methodology. In this month’s post we will look at the other common HDS sizing methodology; Net Annual Sizing. As a reminder, proper sizing should start by checking local regulations.The summation process of the Net Annual Sediment Removal Method is used when a specific removal
Proper sizing of hydrodynamic separators (HDS) should start with checking applicable regulations. In many cases, local or state regulations will dictate how to size an HDS system and even provide a list of what products are approved for use. If there are no regulatory requirements, the engineer must identify which pollutant(s) need to be removed