Cross-section drawing of the Lake Washington Floating Bridge tunnel, Seattle, ca. 1938 - Museum of History and Industry - University of Washington Digital Collections
![Black and white image depicting a cross-section view of two trains, running in tunnels set to the mud and silt of the bay, north of Hudson River, with a riverboat, and shoreline Black and white image depicting a cross-section view of two trains, running in tunnels set to the mud and silt of the bay, north of Hudson River, with a riverboat, and shoreline](https://c8.alamy.com/comp/PEDMG2/black-and-white-image-depicting-a-cross-section-view-of-two-trains-running-in-tunnels-set-to-the-mud-and-silt-of-the-bay-north-of-hudson-river-with-a-riverboat-and-shoreline-with-buildings-in-the-upper-register-1908-courtesy-internet-archive-PEDMG2.jpg)
Black and white image depicting a cross-section view of two trains, running in tunnels set to the mud and silt of the bay, north of Hudson River, with a riverboat, and shoreline
![Image 1 Cross section of tunnel available as Framed Prints, Photos, Wall Art and Photo Gifts #18555874 Image 1 Cross section of tunnel available as Framed Prints, Photos, Wall Art and Photo Gifts #18555874](https://www.steampicturelibrary.com/p/121/image-1-cross-section-tunnel-18555874.jpg.webp)