Interesting thread. I've been looking into this since it came up on a few other boards and the signal blackout claims are worth scrutinising carefully before we run with them.
The problem is that a lot of the "evidence" circulating is screenshots with no timestamps or proper geolocation. I've seen similar patterns with infrastructure anomalies reported before Lac-Mégantic and before the Buncefield fire - in both cases people retrofitted the cell disruption narrative after the fact by cherry-picking outage reports that happen constantly in any given area on any given day.
That said, I do think there's a legitimate question about why certain HAZMAT routing decisions were made on that corridor. That's documentable through actual public records rather than speculation about towers.
Has anyone here actually pulled the FCC outage logs for that area in the 48 hours prior? That would be the starting point for me. Anecdotal reports of phones "not working" are too vague to build anything on. If there's something real here it deserves proper sourcing, not the usual telephone game that ends up discrediting the whole line of inquiry.