Download or read book 21st-Century Tunnels written by LeeAnn Blankenship and published by Enslow Publishing, LLC. This book was released on 2018-07-15 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: As cities grow and Earth becomes more congested with millions of miles of roads and railways, tunnels offer access to some of our last available space. They pass through massive mountains, beneath bodies of water, and even under large cities. This resource introduces readers to underground engineering and explains how it works in connection with other disciplines to solve problems of tunnel design, safety, construction, and sustainability. No doubt tunnels of the future will revolutionize transportation and address other global issues. This insightful resource will inspire readers to consider a career in engineering so they can help make it happen.