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.
We know that every minute counts. That's why we make it as easy as possible to get started with your project. Whether you need design guidance, specifications, site-specific drawings, or cost estimates, we’re here to help.
All the tools you'll need to research and design your next project, right at your fingertips.
Tell us what you need and we will respond with pricing within 24 hours.
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
There are so many things that have a basic togetherness, when you name one the other pops into your mind. For example, cookies and milk, peanut butter and jelly (or banana, yum!), Tom and Jerry; you get the idea. In civil engineering, this is true too: slopes and erosion control, concrete and rebar, stormwater and storm sewer, storm sewer and
As a biofiltration surface layer, mulch can support water retention, weed suppression, organic replenishment, pollutant treatment, aesthetics, media protection from scour, and moderate media temperature. Landscape mulches can include organic mulches like fresh wood chips or aged composted mulch, as well as inorganic mulches such as rock and rubber
Installing a Stormwater BMP is an important step towards protecting our waterways, but for them to perform as designed, they must be maintained regularly. Where do we dispose of the material removed from catch basins and stormwater treatment systems after maintenance? I get that question regularly from both private and municipal maintenance