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 is 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.
I know you all have been waiting with baited breath to find out the in's and out's of the last two considerations when evaluating a large diameter flow thermoplastic sewer solution. To recap, typically, the larger diameters tend to have far less directional changes and lateral connections. Also, interceptors tend to have deeper heights-of-cover
The need for large and ultra-large sanitary sewers is growing as community populations and conveyance flow requirements increase. Many expert studies have estimated that the sanitary sewer market will grow at a 6% compound annual growth rate (CAGR) in the coming years. With this growth, alternative materials, such as thermoplastics, are being
Engineers widely use plastic chambers for retention and/or infiltration of stormwater. These systems are comprised of rows of open bottom arch-shaped chambers in a stone backfill. Stormwater is stored in the chamber volume as well as the void space in the surrounding stone. Manifolds for chamber systems typically consist of 12" to 24" HDPE
Bioretention has been the principal form of Low-Impact Development (LID) used to slow, treat, retain and infiltrate stormwater runoff, mimicking a site's natural, pre-development hydrology.
One aspect of bioretention that has some scientists and regulators concerned is the phenomenon known as nutrient leaching. Nutrient leaching occurs when the bioretention media, which often contains compost, breaks down and releases phosphorus to downstream receiving waters.