Is there anything to the claim that material and trucks were stored on the bridge the day of the collapse?
Yes, the investigators were sent a pic from someone who had just flown over the bridge in a commercial plane which gave great detail of what u r wondering about. Sorry I cannot give you a link altho it may be on one of the TC tv webpages as I saw it on thier newscasts..
I have seen claims that materials and heavy equipment were stored on the bridge, but I can’t say I’ve seen proof of this.
I recall one image showing small, maybe a little bigger than golf carts, buggies for carrying sand or gravel, some images of men with jackhammers breaking deck for replacement, and maybe one or two dump trucks, but that’s all I have photo support for.
I’ve looked for piles of gravel or sand in the post collapse imagery and have not found them. Not saying there weren’t any, just that so far most of the evidence supporting heavy materials and equipment stored on the bridge, from what I’ve actually seen, is hearsay only.