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The Contech Design Center enables engineers to accelerate the design process for bridge and stormwater projects, generating project-specific drawings, engineering calculations, and CAD files while collaborating with Contech engineers. This helps reduce design time, ensures regulatory compliance, and improves constructability. |
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Most storm sewers are simply grouted into a manhole using non-shrink grout and a water-stop gasket, when appropriate. Contech has supplied both the “double fluted” and “single fluted” pipe gaskets for the “water-stop”, which is simply used to help the concrete/grout adhere to something other than the very smooth/slick PVC surface.
Civil engineers face a level of complexity and expectation that continues to rise year after year. Beyond mastery of core engineering principles, today’s professionals must navigate advanced digital design platforms, manage accelerated project timelines, interpret evolving regulatory frameworks, and coordinate seamlessly across multidisciplinary teams. At the same time, they are expected to deliver solutions that balance performance, constructability, sustainability, and cost—often amid tighter budgets and heightened public scrutiny.
As urban development intensifies and stormwater regulations grow more complex, engineers are challenged to design treatment systems that perform effectively within constrained site layouts. Engineered biofiltration has long been a proven solution, with vertical-flow systems like Filterra® delivering reliable, high-rate performance in compact sites. Building on that foundation, Contech’s Modular Wetlands® Linear (MWL) uses horizontal-flow technology that addresses hydraulic and spatial challenges, giving engineers even greater flexibility in how they design for water quality.
This article explains why underground detention systems need pretreatment to stay effective over time, and how hydrodynamic separators protect storage volume by removing sediment, trash, and floatables before they enter the system. It highlights how proper HDS sizing can extend maintenance intervals, reduce cleaning costs, and preserve hydraulic performance, making pretreatment one of the most cost-effective ways to protect underground stormwater infrastructure.
