Many cities have a notorious choke point that torments commuters and keeps urban planners awake at night. In Cincinnati, it is the Brent Spence Bridge, a 1960s structure that straddles the Ohio-Kentucky border.
It is creaky and rust stained. It is known for traffic jams and car crashes. People who live in both states avoid it if they can.
“I’m scared to drive over it,” Emily Essell said recently as she visited a park near the bridge. She said that she rolls down her windows when she crosses the bridge so that she can escape if her car falls into the Ohio River.
The bridge, which could cost $2.5 billion to fix, has bedeviled politicians for decades. And then four days before the 2016 presidential election, Donald J. Trump came to Ohio and promised to replace it.