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PDH Articles

The PDH Article Series is a unique opportunity for engineers to earn continuing education credit by reading focused articles written by engineers at Contech Engineered Solutions. Just read the article and take to quiz to receive your PDH credit.

Current PDH Articles

Concrete erosion control blocks are arranged on a sloped embankment beside a small body of water, with construction equipment nearby.
Concrete Armor Units Advancing Scour Protection

By Brian Looney, P.E. 
October 2025

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Large metal pipes are laid out at a construction site, with a red crane and equipment visible in the background.
Mastering the Design of CMP Detention & Infiltration Systems

By Robert Chapman and Andreea Simescu, P.E. 
September 2025

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Finish Considerations for Steel Bridges

By Cameron Abernathy, P.E., and Justin Reardon, P.E.
December 2024

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A black corrugated plastic pipe with a connector is installed in a trench lined with gravel and soil.
Installed Joint Testing for Large-Diameter Sewer

By Andrew M. Jenkins
October 2024

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The Value of High-Rate Biofilters for Urban Stormwater Retrofits

By Derek Berg, Alex MacLeod, P.E., and Dan Dodson
September 2024

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Siting Considerations for Precast Buried Open-Bottom Bridge Structures

By Julia Frazier, P.E. and Rachel Lageman, P.E.
December 2023

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CSP for Vertical Applications | Understanding Design Practices

By Darrell Sanders, P.E., Noah Schenck, & Marcela Arbaiza
October 2023

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The Fundamentals of Stormwater Quality Regulations

By Derek Berg & Vaikko Allen
September 2023

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Click here to view archived PDH articles.