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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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One of the largest concerns municipalities have when sliplining an existing pipe structure is if the liner pipe will fit inside the host pipe. There are a myriad of potential host pipe problems which determine liner pipe clearance.
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.
The recent Executive Order on housing affordability has reignited a familiar debate: are stormwater regulations driving up the cost of new homes? Critics argue that compliance adds thousands of dollars per unit with unclear benefit. Defenders respond that these requirements protect waterways, reduce flooding, and provide long-term value. Both perspectives contain truth—but neither fully addresses the underlying issue.
Underground detention systems are often evaluated by storage volume, depth, and footprint, but the real performance impact starts and ends at the inlets and outlets. These connection points control how water enters the system, how energy is managed, and how reliably the system releases flow at the intended rate. In this post, we’ll break down the most common design questions engineers ask about inlets and outlets, so your system performs predictably, stays maintainable, and meets hydraulic goals.
