Last Sunday I was 86 miles from home and I hit a speed bump. The car crashed going on the up side and them crashed on the down side. I hit it hard but every thing seemed okay until a little down the road the temperature light came on. I stopped and about that time all kinds of steam came out from under the hood. I busted the radiator. Glad I had AAA, I had a 100 miles towing range
Most of our speed bumps around here have two white triangles on the approach side, plus signs posted prior to the speed bump or table. The only ones I've encountered that were not very visible were at a municipal complex where a nearby county has it's government offices. My explorer Sport Track didn't take very kindly to them, either. I think that county didn't mark them, intending for them to do damage, even at the posted speed limit. They simply looked like a brick crosswalk, difficult to see the elevation. If your speed bumps weren't marked, you may have a case for damage recovery.
In that case, I want damage recovery for the prius-sized, unmarked potholes, too.
In my truck, I rarely bother to slow down for speed bumps. The wheels just go blump-blump as I drive over them, and I hardly feel the bump in the truck. In the Impala, I used to hit the brakes right before the bump, then hit the gas, and drive over. In my Fiero, I'd rather not encounter speed bumps, road destruction, tar, or bugs.
Speed bumps here are rarely marked, other than being painted yellow. Sometimes, bumps due to uneven pavement are marked on highways.
Installed the new radiator yesterday. Fill it up with coolant and let it run while in the garage while doing other work in the garage. It overheated. Checked and the radiator fan is not coming on. I'll check that out tomorrow.