A video of Taiwan commuters stopped on a bridge swaying after an earthquake with a preliminary magnitude of 7.4 on Wednesday is going viral on social media — and it’s unsettling to watch.

Congestion on the bridge is a real issue, but it is not caused by walkers, cyclists and others using the trail.

Of the 68 bridges listed, six are in the Bay Area. They are the Richmond-San Rafael Bridge, Carquinez Bridge, Benicia-Martinez Bridge, Antioch Bridge, San Mateo-Hayward Bridge, all owned by the ...