How much concrete is used by highway departments to make all those barriers?



  1. 0 Votes

    That is a good question and I couldn’t find a specific answer. Jersey barriers, so named because (the sources seem to conflict) either they were first used in New Jersey or because in cross-section they are shaped somewhat like the state of New Jersey, are ubiquitous on highways in the US, and variations of them are used in countries all over the world. We’re most familiar with the 3-foot tall barriers that slope upward from their base, but they can be and often are manufactured in numerous different sizes depending on their applications–for example, specially-made Jersey barriers are employed as security devices to defend against car bombs. Consequently, you can’t really tell how much concrete is used in Jersey barriers of all types. What is clear, but not known to most people, is that the Jersey barrier is a pretty complex piece of engineering. It’s designed to deflect automobile impacts in specific directions and specific ways, and its design has changed over the years partly because automobile design has also changed. You can read all about the basics of Jersey barriers at the second link I’m posting under this answer.

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