The Brooklyn Bridge has a few features that make it comparatively easy to pull off. Here's a street view link that should give you an idea: https://www.google

The Brooklyn Bridge has a few features that make it comparatively easy to pull off. Here's a street view link that should give you an idea: https://www.google.com/maps/@40.705226,-73.995817,3a,90y,130.57h,83.25t/data=!3m4!1e1!3m2!1sfM0UuW-XaebvDIV2vx8Kkw!2e0 https://www.google.com/maps/@40.705226,-73.995817,3a,90y,130... - The bike+pedestrian path is suspended over the roadway. - There are some suspension cables leading from the suspended pedestrian path, and trusses leading to the other cables. - The cables are pretty thick and have railing-like cables, likely for maintenance. - There is only a small metal door preventing people from running all the way up the cables. The railing-like cables look useful for climbing over the door. It's possible that with the right skills, nothing is necessary but the new flag and tins, a plan, and a little luck.