John J.
Senior Member.
This follows the plot of the book, which was also popular -- embedding this stuff in the public consciousness.
Going off-topic (i.e. not humorous),
read or heard somewhere, years ago, a theory that maybe some of the many Point Pleasant residents who used the Silver Bridge somehow sensed some change or clue on the edge of perceptibility, e.g. a sound or vibration, resulting from the bridge's failing structure. This caused anxiety, and in turn hypervigilance/ fatigue/ unease, perhaps contributing to some of the strange reports from that town before the disaster.
For a long time I thought this was quite an interesting idea. In retrospect, it probably falls foul of Occam's razor; sadly we don't seem to have a "hidden" sense of structural integrity. Some frequencies of infrasound appear to cause disquiet in at least some people, https://en.wikipedia.org/wiki/Infrasound, but from what is known of the mechanism behind the Silver Bridge's collapse (the rapid failure of a single eyebar causing immediate catastrophic overloading and failure of other structures), it must be unlikely that there was any indicator that could be detected by human senses, excepting close visual examination of the compromised eyebar:
Wikipedia, https://en.wikipedia.org/wiki/Silver_BridgeExternal Quote:The bridge failure was due to a defect in a single link, known as eyebar 330... ...A small crack was formed through fretting wear at the bearing, and grew through internal corrosion, a problem known as stress corrosion cracking. The crack was only about 0.1 inches (2.5 mm) deep when the link failed, breaking in a brittle fashion.
There doesn't appear to have been any reduction in the use of the bridge prior to its collapse, and (AFAIK) a significant overlap between regular bridge users and those reporting strange happenings in Point Pleasant was never established.
In addition, the accuracy of the most influential commentator on the Mothman (and other claimed strange events around Point Pleasant), John Keel, has been questioned in more recent years; Wikipedia https://en.wikipedia.org/wiki/John_Keel
It is likely coincidence that the few reports of strange happenings around Point Pleasant- sometimes contradictory, some probably explainable by misidentified wildlife; hoaxers; and some only attested to by Keel- occurred not long before the Silver Bridge disaster. Had Keel not linked the two, the Mothman might not have the presence in popular consciousness that he does.