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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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When designing a Culvert or Storm Sewer the designer needs to take into consideration the type of end treatments that are available in the marketplace. The Federal Highway Administration (FHWA-HIF-12-026 Hydraulic Design Series Number 5) recommends that all pipe 48” in diameter and greater needs to have proper end protection. This selection is one of the major decisions as the Engineer of Record that you must make. Both prefabricated and constructed in place installations are available options for the designer.
This Pipe Blog article explores how effective drainage systems play a critical role in reducing hydroplaning potential, highlighting the importance of proper surface design and sheet flow interception. The article focuses on the benefits of Slotted Drain systems for capturing rainwater runoff across wide, flat airport surfaces such as runways, taxiways, and maintenance areas. Backed by decades of proven performance and extensive hydraulic testing, Slotted Drain provides continuous surface drainage, high structural strength for heavy aircraft loading, and long-term durability with multiple coating options designed to withstand harsh airport environments, including areas exposed to de-icing chemicals.
Infiltration systems can be an effective way to manage stormwater, reduce runoff, and support groundwater recharge. But like any stormwater BMP, they need to be protected if they are expected to perform over the long term. That is where pretreatment comes in. Pretreatment removes trash, sediment, debris, and other pollutants before runoff enters an infiltration system. This can help extend the life of the system, simplify maintenance, reduce long-term liability, and support local stormwater compliance requirements.
Stormwater BMP design usually starts with two basic questions: can the BMP treat the required flow or volume, and can it physically fit on the site? Those questions are important, but they are not enough as a BMP is not fully designed until someone can inspect it, clean it, and understand who is responsible for maintaining it. Maintenance should not be treated as a post-construction problem. It is a design decision.
