Filterra is similar to bioretention in its function and application, but has been optimized for high volume/flow treatment and high pollutant removal. Its small footprint allows it to be used on highly developed sites such as landscaped areas, parking lots and streetscapes. Filterra is exceedingly adaptable and can be used alone or in combination with other BMPs.

Easy installation and proven durability with a variety of shapes, sizes and treatments for spans from 5 ft to 45 ft. Contech Engineered Solution's steel and aluminum structural plate offerings have a long history of strength, durability and economy. These structures meet a wide range of site-specific challenges with a variety of sizes and shapes available. They offer unique design elements, including sloped ends, beveled cuts and elbows. Many are specifically suited for rehabilitation due to fast installation and extensive technical support. Contech aluminum and steel structural plate products are designed for rapid assembly and low installation costs for small bridges, culverts, underpasses, enclosures, tunnels, and more. Over 45,000 structural plate products have been installed worldwide.

The Jellyfish Filter is a stormwater quality treatment technology featuring high flow pretreatment and membrane filtration in a compact stand-alone system. Jellyfish removes floatables, trash, oil, debris, TSS, fine silt-sized particles, and a high percentage of particulate-bound pollutants; including phosphorus, nitrogen, metals and hydrocarbons. The Jellyfish Filter has been tested in the field and laboratory, and is performance verified by the New Jersey Department of Environmental Protection, as well as numerous other stormwater regulatory agencies.

Contech's corrugated metal pipe's (CMP) stormwater detention and infiltration systems store stormwater exceeding a site's allowable discharge rate and releases it slowly over time. Systems can be sized and shaped to meet site-specific needs, and are available fully or partially perforated.

No one knows post-construction stormwater management like Contech. For more than two decades we have been helping engineers, contractors, and developers satisfy stormwater mitigation requirements on land development projects across North America. Regardless of your project's objectives and constraints, our team of Stormwater Design Engineers, Regulatory Managers and local Stormwater Consultants are here to provide you with expert advice and assistance. If your goal is to eliminate or detain runoff, you can rely on Contech for a wide range of subsurface infiltration, detention, and rainwater harvesting solutions. If treatment is needed, our landscape based bioretention or subsurface filtration designs can fit into virtually any site and can be tailored to address specific pollutants. At every stage of your project, count on Contech to provide engineering services including: Regulatory guidance and permitting assistance Preliminary standard details and/or site specific final CAD drawings and specifications Low Impact Development design assistance Engineering calculations for hydraulics/hydrology, rainwater harvesting, and detention/retention Review of preliminary site design, feasibility screening, and layout assistance Value Engineering - cost estimates and options analysis Pre-construction support, project scheduling, and contractor coordination Installation and construction support Maintenance support The result - an efficient design process, the right product, more land space savings, and faster permitting.

The StormFilter stormwater treatment system uses rechargeable, self-cleaning, media-filled cartridges to absorb and retain the most challenging pollutants from stormwater runoff including total suspended solids, hydrocarbons, nutrients, metals, and other common pollutants. StormFilter performance has been verified by the State of Washington Department of Ecology and New Jersey Department of Environmental Protection, as well as numerous other stormwater regulatory agencies.

The ChamberMaxx corrugated, open-bottom plastic infiltration chamber system allows you to meet stormwater runoff reduction requirements and maximize available land space by providing economic infiltration below grade. ChamberMaxx maximizes storage volume in a small footprint, and its low profile shape is ideal for sites with shallow footprints.

Terre Arch is a modular, multi-chambered, precast concrete stormwater storage system engineered for underground installation. Terre Arch's strength, storage capacity, and fast installation make it the most economical concrete system available.

DuroMaxx Rainwater Harvesting Cisterns are constructed of DuroMaxx Steel Reinforced Polyethylene (SRPE) for a strong and durable storage solution. DuroMaxx cisterns are available in sizes up to 120 inches in diameter and 48 foot lengths. DuroMaxx cisterns are leak tested and labeled with the UPC seal to ensure a reliable long term storage solution. Contech hydrodynamic separator and filtration products provide pretreatment for stormwater prior to storage to provide the best water quality and reduced maintenance costs for the most demanding rainwater harvesting applications.

Removing pollutants from stormwater runoff is an important component of any stormwater management plan. Stormwater pollution - sediment, trash and debris, nutrients, and metals - is one of the leading causes of water quality impairment we are facing today. There are numerous technologies available for treating runoff - and the right system for your site should be selected based on your local requirements, your target pollutant, and specific site characteristics. As no two projects are the same, there is no one size fits all answer. Our treatment projects are flexible and customizable - and are effective as either conventional end-of-pipe BMPs (best management practice) or small-scale decentralized IMPs (integrated management practices) in a low impact development (LID) design. Filters can help you remove the most challenging pollutants from stormwater, including nutrients like phosphorus. There are many variables to consider when designing a stormwater filtration system. It's critical to use a balanced approach that incorporates hydraulics, longevity, and performance. Hydrodynamic separators were the initial underground water quality devices developed 20 years ago. We've been there since the beginning - and our systems are widely accepted for effective solids removal. Especially efficient on gross solids, trash and debris, they are an optimal choice for pretreatment systems.

Strong, safe and durable vehicular and pedestrian truss bridges in a wide variety of bridge styles to clear span from 20 feet to 300 feet and more. Our prefabricated truss bridges are durable and aesthetic solutions. Modular, prefabricated construction means fast installation and substantial cost savings. A truss bridge is typically erected and installed in one to three days, without the need for field welding. Contech truss bridges feature timeless bridge design and construction that is customized and manufactured to your specifications. Our truss manufacturing facilities are AISC Major Bridge Certified with fracture critical and sophisticated paint coating certification. A variety of styles, finishes, decking and rail options are available for every project, including unlimited customized options.

ArmorFlex is a flexible, interlocking matrix of cellular concrete blocks of uniform size, shape, and weight used for hard armor erosion control. ArmorFlex blocks have specific tested hydraulic capacities and are laced longitudinally with revetment cables to provide ease-of-handling and rapid installation.

The CDS hydrodynamic separator uses swirl concentration and continuous deflective separation to screen, separate and trap trash, debris, sediment, and hydrocarbons from stormwater runoff. CDS captures and retains 100% of floatables and neutrally buoyant debris 2.4mm or larger, effectively removes sediment, and is the only non-blocking screening technology available in a stormwater treatment device.

DuroMaxx steel-reinforced polyethylene (SRPE) pipe combines steel and polyethylene (PE) to make an exceptionally strong and durable pipe for stormwater detention and infiltration applications. DuroMaxx is unique as it has fewer joints to assemble on site, can be made watertight, and can be used in applications with corrosive soils.

CON/SPAN is a modular, precast concrete arch system designed to provide economical, large volume stormwater detention or infiltration below grade. CON/SPAN's distinctive arch top and vertical side walls maximize storage volume while providing enhanced structural integrity.

Vortechs is a hydrodynamic separator that combines swirl concentration and flow controls into a shallow treatment unit that traps and retains trash, debris, sediment, and hydrocarbons from stormwater runoff. Vortechs removes sediment down to 50 microns and is the ideal solution for projects that require a shallow treatment device due to groundwater, utility or bedrock constraints.