Credit to Geraldo Rivera for this. Who were ON the Key Bridge?

[haele]

50. Who says they were undocumented Geraldo?

The two who survived had reportedly been in the country 17 and 19 years. They probably had documents. They could have just as easily been Naturalized Citizens or here on a green card or work/asylum visa.
Not all immigrants in the US born south of the border are undocumented.

This being said - construction work is one of the most dangerous jobs in the world. Long, irregular hours. Tedious, repetitive physical work. Unsafe, unprotected environments. Unscrupulous employees, with a labor force that is typically considered fungible and unskilled and not enough oversight to ensure they are properly trained, outfitted, and in some cases, not really compensated for the profit their labor brings their employer.
Construction workers are too often treated with less respect than the rental equipment used on the job. Especially "day labor", hired on for a small job and let go once they aren't needed.
And often they face enormous risks for crippling injuries and death daily without compensation to them or their families should something happen to them at work.
All so the rest of us can have living, shopping, and office spaces; roads, utilities infrastructure, and other "nice things" that we barely notice as we go about our own business.
Immigrants typically get these jobs because most citizens refuse to seriously work low paying temp jobs. People in the US somehow associate construction labor with slacker dudes that are between or can't hold down real jobs, older teens, or college students on break. I don't know why, it's a hard, underpaying business that operates on razor thin margins when approached honestly. And it's extremely dangerous, with long-term affects on health even if all the safety measures are followed.

Haele