UTL is about exploring past, present and future urban technologies in science and fiction, etc...
https://en.wikipedia.org/wiki/Abernethy_Bridge , https://www.youtube.com/watch?v=JCKGxPCv4jU
https://www.i205corridor.org/abernethy-bridge
https://www.oregon.gov/odot/projects/pages/project-details.aspx?project=K22467