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V1 Media, the publisher of Informed Infrastructure Magazine, is an approved AIA continuing-education provider. AIA-approved courses are a valid form of Learning Units (LU) and Professional Development Hours (PDH) for the Architecture, Engineering and Construction (AEC) industries via self-learning courses in all states.

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Precast Structural Alternatives for a Green Solution

Course Information

Concrete plays an integral role in urban development, from the fabrication of underground sewer lines to the construction of bridges and interstate highways. However, this development increases impervious surfaces that, in turn, generate more stormwater runoff, which often carries pollutants produced by the activities that occur on the impervious surfaces. These pollutants can include trash and debris, sediment, nutrients, dissolved metals, and petroleum hydrocarbons. Increased stormwater runoff also can erode and degrade the urban streams that ultimately receive the flow and may cause flooding issues for existing development downstream. The quality and quantity of stormwater runoff can threaten wildlife, natural systems and aesthetics. Fortunately, concrete also is part of the solution to these problems.


Jay Holtz, P.E

Learning Objectives

• At the conclusion of this article, the reader should be able to understand the following:

• Advantages of precast manufacturing vs. cast-in-place concrete

• Natural stormwater treatment using structural bioretention systems.

• Precast structural bioretention system installation and maintenance

• Using stormwater detention systems to reduce peak flow and mitigate flooding

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