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Who doesn't love a good tunnel? 🥑 For 16 free meals with HelloFresh PLUS free shipping, use code PRACTICAL16 at Many cities across the world maximize the use of valuable land on earth’s surface by taking advantage of the space underneath for bypassing floods. This video discusses some of the challenges and solutions to these massive projects. Watch this video ad-free on Nebula: Signed copies of my book (plus other cool stuff) are available here: 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 ____________________________________ Webs
