One of the most important (and innocuous) parts of the constructed environment. Look around and you’ll see retaining walls everywhere holding back slopes so we all have a little more space in our constructed environments. They might just look like a pretty concrete face on the outside, but now you know the important job they do and some of the engineering that makes it possible. Watch this video and the entire Practical Engineering catalog ad-free on Nebula: https://go.nebula.tv/practical-engineering Practical Engineering is a YouTube channel about infrastructure and the human-made world around us. It is hosted, written, and produced by Grady Hillhouse. We have new videos posted regularly, so please subscribe for updates. If you enjoyed the video, hit that ‘like’ button, give us a comment, or watch another of our videos! CONNECT WITH ME ____________________________________ Website: http://practical.engineering/ Twitter: https://twitter.com/HillhouseGrady Instagram: https://www.instagram.com/practicalengineering Reddit: https://www.reddit.com/r/PracticalEngineering Facebook: https://www.facebook.com/PracticalEngineerGrady​ Patreon: http://patreon.com/PracticalEngineering SPONSORSHIP INQUIRIES ____________________________________ Please email my agent at practicalengineering@standard.tv DISCLAIMER ____________________________________ This is not engineering advice. Everything here is for informational and entertainment purposes only. Contact an engineer licensed to practice in your area if you need professional advice or services. All non-licensed clips used for fair use commentary, criticism, and educational purposes. SPECIAL THANKS ____________________________________ This video is sponsored by HelloFresh. Thumbnail photo and intro footage by Mike Kruce Photography. https://www.mkjphoto.net/ Stock video and imagery provided by Getty Images, Shutterstock, and Pond5. Tonic and Energy by Elexive is licensed under a Creative Commons Attribution License Source: https://www.youtube.com/watch?v=U6fBPdu8w9U Producer/Writer/Host: Grady Hillhouse Assistant Producer: Wesley Crump Script Editor: Ralph Crewe