Big R Bridge® steel rolled girder superstructures are pre-engineered and prefabricated in the controlled environments of our AISC-certified facilities, which offer precise tolerances, superior welding and continuous quality control versus location-built bridges.
The Cascade Separator is the newest innovation in stormwater treatment from Contech. The Cascade Separator was developed by Contech's stormwater experts using advanced modeling tools and Contech's industry leading stormwater laboratory.
This innovative hydrodynamic separator excels at sediment capture and retention while also removing hydrocarbons, trash, and debris from stormwater runoff. What makes the Cascade Separator unique is the use of opposing vortices that enhance particle settling and a unique skirt design that allows for sediment transport into the sump while reducing turbulence and resuspension of previously captured material. These two factors allow the Cascade Separator to treat high flow rates in a small footprint, resulting in an efficient and economical solution for any site.
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.
Big R prefabricated steel cattle guards are designed to meet BLM or USFS specifications and are ideal for standard highway use and also meet off-road or haul-road requirements.