As noted in the introduction, the search for scary bridges started in New Mexico. However, living in Chile provided some of the best specimens. Many Chilean bridges are quite good, probably because the earthquakes knock down anything that isn't. Also, Chilean engineers have put a huge amount of work into insuring that Chilean structures are able to survive the amazingly large earthquakes to which they are subjected. But Chile also has some bridges that are, ummm, lacking...
Click the images for a large version.
One is a foot bridge in the wilderness near Cochamo, about a days hike from the nearest road. Cochamo is near Puerto Montt, which is in northern Patagonia.
Safety of engineering structures and components follows a hierarchy:
The aim should be to work as high up this list as possible.
And there is a great view of the water fall and river while you pause (half way across) to determine that the duct tape is, in fact, not structural:
Readers should note that the Cochamo area is, in fact, a wonderful place to backpack and rock climb. Other pictures taken on the same trip can be found here.
Another scary bridge is in Torres del Paine National Park, which is near the southern end of Patagiona. Not quite the end of the world, but a few hundred kilometers northwest. This is the most picturesque scary bridge that I know of. The sign makes this one even more scary (be sure to zoom in to read it).
In the cities things are a lot better. Here is a both safe and good looking foot bridge in Punta Arenas:
In Chile there is a lot of new construction going on. And thankfully most of it seems to be of higher quality. It is not clear if every construction site comes with a dog, or every dog with a construction site. But they have a lot of both. And unlike the U.S. dogs, almost all of the Chilean dogs are friendly.
This is one of the stranger looking construction sites. It is not clear what they are making - it looks like 3 closely spaced hollow cylinders. They could be a support for something, but what? It does not look much like a bridge, but it could be. There is a road right there, but not of anything to cross. Maybe some sort of waterworks?
The good news is that the author escaped all the scary bridge encounters uninjured.