How Are Structures Built Underwater? Amazing Underwater Structures

Despite being beautiful and useful, rivers, lakes, harbors, and oceans are not always the best places to build. Tools and construction materials work better when they are above water and dry but many types of infrastructure we depend on every day are built below water, including wharves, bridges, tunnels, and docks. How do they do it?Let's learn about it with the "Machinery & Technology" channel

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