I walk a lonely road...............The only one that I have ever known

To get there, we crossed the mississippi on this little old bridge that my grandma had a funny story about - one time when she was a teenager, she and a few of her friends packed into a car (there weren't too many of those around), drove on the bridge until it started sloping down, them got out, set a ball on the road, and followed it i the car as it rolled down the bridge.