The images here show Da Vinci's bridge designs in some of Leonardo's original sketches of the design and a permanent version of the design that is used as a foot bridge in Denmark. The permanent design is to give a better idea of what it might look like in actual use and to more clearly see the geometries used by Leonardo.
“Leonardo Da Vinci: Self-Supporting-Bridge.” Leonardo3, Leonardo Museum, www.leonardo3.net/en/l3-works/machines/1355-self-supporting-bridge.html.
Sniderman, Debbie. “Leonardo Da Vinci.” ASME, The American Society of Mechanical Engineers, 10 Apr. 2012, www.asme.org/topics-resources/content/leonardo-da-vinci.
Noe, Rain. “Leonardo Da Vinci's Ingenious Design for a Self-Supporting Bridge.” Core77, 6 Apr. 2017, www.core77.com/posts/65043/Leonardo-da-Vincis-Ingenious-Design-for-a-Se….