Never been to Bridgeport, but I have driven through Fresno and Bakersfield if only on the interstate. Can’t say I saw much blight from the four-lane. I will say parts of Barstow looked like it had been hit by a squadron of B-52s. Boarded up/half destroyed homes, and trash everywhere on the approach coming in from Victorville.
Bakersfield and Fresno are hampered by geography. Smog just sits there because there is a mountain range which it can’t blow over.
I go to Bakersfield a couple of times a year. It has old oil refineries, and there is poverty, but also a lot of tidy tract neighborhoods in different income ranges. My nephew, a left wing photographer who is into urban decay, took pictures of rough industrial buildings and occasional vagrants in Bakersfield for the past several years, but not one of litter or tagging. If there was something really disgusting, I think I would have seen a picture by now. I wonder if Bakersfield has gotten a bit of a bad rap here.