In Seattle, the old I90 floating bridge across Lake Washington had a "bulge" where a section of the roadway could be pushed into the bulge to make room for boat passage. When the section was retracted, the highway abruptly ended, and a barrier was put up.

The Bulge was infamous for traffic accidents where you suddenly had to swerve right then left then right at highway speed, with narrow lanes lined with concrete walls. This was a challenge for my old car with its loosey goosey suspension. I remember news radio at the time would report on another "flamer" at The Bulge.

Time moves on, and it was time to replace the bridge with a modern, safe one. The construction crew was astonished to find a car at the bottom where the highway abruptly ended when the bridge was retracted. In it was a woman who had been missing for 20 or 30 years. It was a famous case when she went missing, and people searched everywhere for her, including forests where psychics claimed she was.

Apparently, she was simply driving one night, didn't realize that the bridge was out, drove through the barrier into the water and nobody noticed.