Careful walking in downtown Portland sidewalks, people. Alot of structures? Likely newspaper stands or something have been taken away leaving an exposed bolt stuck in the concrete sticking out only a mere inch above ground but plenty tall to cause some tripping.
I watched a lady trip and fall, and through the accident receive a nasty gash on her leg where I eventually called 911. EMS came and put a cone. Cone is long gone and these stumps are all over the city, if you look for them. I even tripped on one the other day not seeing it because it was a little dark. It wasn't a bad trip and I didn't fall, but that one inch stump is tall enough that it could cause major damage to someone especially if you aren't looking at the ground where you walk thinking some one inch bolt is protruding from the ground that could make you trip.