Daniel's fallen down the ironworking rabbit hole, and honestly, I get it. He started with "skyscraper worker" on YouTube, ended up watching rivet catcher teams from the nineteen thirties, and now he wants the whole arc. How did ironworking become its own trade, distinct from every other kind of construction labor? Why is it so generational in the States, and why have Native crews, Mohawk ironworkers especially, been so central to it? He's also asking the blunt question: how many people still do this, and where do they work besides high-rises? And then there's the Israel angle. We're surrounded by tower cranes right now, but from the street you rarely spot high-vis vests up on the steel. Is the trade being mechanized away, or are we just not seeing it? And underneath all of that, he wants to know if ironworking is dying or evolving, especially for the people who understand fastening and forging on structures where you need the absolute highest strength.
The first thing to get straight is that ironworking isn't a job title, it's a family of trades. In the U.S. you've got structural ironworkers, the ones walking the iron and bolting up the frame. You've got reinforcing ironworkers, the rebar crews who build the skeleton inside concrete. Ornamental ironworkers handle railings, stairs, facades. Bridge ironworkers are their own breed entirely. The union that represents all of them, the International Association of Bridge, Structural, Ornamental, and Reinforcing Iron Workers, goes back to eighteen ninety-six. That's one of the oldest building trades unions in North America.
Eighteen ninety-six. So this trade predates the skyscraper boom that made it famous.
It does, and that's the part most people miss. Ironworking didn't start with buildings. It started with ships and bridges. Before structural steel frames existed, you had riveted hulls, boilers, bridge trusses. The Bessemer process made cheap structural steel possible in the late nineteenth century, and suddenly buildings could go up instead of out. The people who knew how to fasten steel at height came from the shipyards and the bridge crews. Same skills, same nerve, new skyline.
So the trade is older than the skyscraper, but the skyscraper is what turned it into a distinct identity. The vocabulary gives it away. Walking the iron, bolting up, plumbing up. That's not generic construction language. That's a craft with its own grammar.
And its own safety culture, which was basically nonexistent by modern standards but was still a culture. You trusted the person next to you because your life depended on it. Not metaphorically. If the guy throwing you a rivet missed, you could die. If the guy bolting next to you lost his grip on a beam, you could die. That trust is why the trade became generational. You didn't hire a stranger to stand next to you on a beam eight hundred feet up. You hired your nephew.
Which gets us to the Mohawk story, and this is where the history gets interesting. The Kahnawake and Akwesasne reserves near Montreal sit right on the St. Lawrence River. In the eighteen eighties, a bridge was being built across the river, and Mohawk men from those communities got hired to work on it. The story goes that the bridge company needed workers, the Mohawk men took the jobs, and something about working at height just... Clicked.
The Dominion Bridge Company, that was the one. And the legend is that the Mohawk workers would climb up onto the bridge structure during lunch breaks and walk the beams, just to see who could go higher. The foremen noticed they weren't afraid. By the time the bridge was done, Mohawk crews had a reputation. When the skyscraper boom hit New York in the nineteen twenties, the same families went south.
And they built everything. Empire State Building, Rockefeller Center, the World Trade Center decades later. The phrase "Mohawk ironworker" became synonymous with high-steel work. Entire communities in Brooklyn, especially around the Gowanus area, became home to Mohawk ironworker families who'd moved down from Canada for the work.
There's a neighborhood in Brooklyn called Little Caughnawaga, that's what it was called. Caughnawaga being the anglicized version of Kahnawake. You had hundreds of Mohawk families living there, fathers and sons and uncles all working the same jobs. The pipeline wasn't a metaphor. It was literal. You grew up watching your father walk iron, and when you were old enough, he got you on a crew.
Why do you think it stuck? Beyond the initial bridge job, I mean. Lots of trades are generational. Farming, fishing. But ironworking has a particular cultural weight.
Part of it is economic. The work paid well, and it was steady during the boom decades. For Native communities that had been pushed to the margins economically, a trade that paid union wages and didn't require a college degree was a real path. But there's also something about the way the work was organized. Mohawk crews often worked together, whole gangs from the same community. That reinforced the pipeline. You weren't just an individual worker; you were part of a crew that was part of a community. The skills got passed down on the job, not in a classroom.
And the trust thing you mentioned. If you're going to work with someone at height, you want someone you've known your whole life. Someone whose family knows your family. The social bonds and the safety bonds are the same bonds.
And that's still true today, by the way. The Mohawk presence in high-steel work hasn't gone away. It's smaller than it was at the peak, but there are still crews from Kahnawake and Akwesasne working major projects. The generational pipeline is still there.
Now let's talk about the riveting era, because this is what Daniel was watching on YouTube, and it's hard to believe. Hot riveting was the dominant fastening method for steel structures until the mid twentieth century. A rivet is basically a steel pin with a head on one end. You heat it until it's glowing, shove it through a hole in two steel plates, and then hammer the soft end into a second head. When it cools, it shrinks, and that shrinkage pulls the plates together. That's what holds the joint.
The choreography is the wild part. A rivet gang had four jobs. The heater ran a portable forge, heating rivets to around eighteen hundred degrees Fahrenheit. The thrower took the hot rivet with tongs and threw it to the catcher, sometimes thirty or forty feet, sometimes up several stories. The catcher snagged it out of the air, usually with a metal can or a leather pouch, and inserted it into the hole. Then the bucker-up held it in place from one side while the riveter hammered the head from the other. All of this happening on a beam, in the wind, hundreds of feet up.
The thrower and catcher were the stars. The throw had to be accurate enough that the catcher could catch it without looking away from his work. And the catcher had to trust the thrower completely. If that rivet hit you in the face, you weren't just burned. You were falling.
There's a persistent myth that catchers caught rivets bare-handed. Some did, as a stunt, to prove something. But standard practice was a metal can, heavy gloves, or a leather pouch. The bare-hand catch is the kind of thing that makes a great story and a terrible job description.
The heat was the part nobody romanticizes. Standing next to a forge in July, wearing long sleeves and gloves because you had to, while the rivet you just caught is still radiating heat through the can. The height was scary, but the heat was constant.
And then the whole system went away. High-strength bolts and welding started replacing riveting in the nineteen fifties. A bolted connection doesn't need to be heated, doesn't need a four-person gang, and high-strength bolts can be torqued to precise specifications. The crew structure changed completely. One bolter-up with a torque wrench could do what a rivet gang did, faster and with less risk.
But the new skills are different. Torque control, weld inspection, understanding metallurgy. The rivet gang was a team sport. Modern bolting is more individual, but it demands a different kind of precision. You have to know exactly how tight that bolt needs to be, and you have to prove it.
That's the transition in a nutshell. The trade didn't get easier. It got more technical. The physicality is still there, the height is still there, but now there's a layer of engineering knowledge that the old riveters didn't need.
So that's the historical arc. Shipyards to bridges to skyscrapers, rivets to bolts, generational crews to... well, let's talk about who's doing this now.
The union represents somewhere around a hundred twenty to a hundred thirty thousand members in the U.S. and Canada. Total ironworkers, including non-union, is probably over two hundred thousand in the U.S. alone. So it's not a huge trade. It's smaller than electricians or carpenters. But it's not tiny either, and it's not going away.
And the work is more diverse than people think. High-rise structural work is the glamorous part, but ironworkers are also on bridges, in industrial plants, in shipyards doing repair work, on offshore oil platforms. The reinforcing side, the rebar crews, those guys are on every concrete project anywhere. Ornamental ironworkers are doing railings and stairs. The trade is everywhere, just not always visible.
Which brings us to Daniel's Israel question. We're in the middle of a construction boom here. Tower cranes everywhere. But from the street, you don't see many people in high-vis vests up on the steel. Why?
I've wondered about this too. I see the cranes, I see the concrete cores going up, but the actual steel work seems to happen behind the concrete.
That's because most high-rise construction in Israel is concrete-dominant. In the U.S., a high-rise is typically a steel frame with concrete floors. Here, you're more likely to see concrete cores, precast panels, and post-tensioned slabs. The ironworkers are still there, but they're doing rebar, not walking steel beams at the edge of the building.
So the high-vis vests at height are there, but they're inside the concrete core, tying rebar, not out on the perimeter where you can see them from the ground.
Right. And there's another factor. A lot of the visible labor on Israeli construction sites is done by foreign workers, Thai and Chinese crews especially, and by Palestinian workers. The specific trade of ironworking, as a distinct craft with its own union and culture, is less prominent here because the building methods don't demand as much structural steel work. It's not that the work is mechanized away. It's that the work was never as steel-centric to begin with.
So the answer to Daniel's question is: you're not seeing them because the construction method is different, not because the trade has been automated.
Mostly. There is mechanization happening, but not in the way people imagine. Tower cranes have been around for decades. Automated welding exists, but it's mostly in fabrication shops, not on site. Prefabrication is the bigger shift. Steel components are increasingly cut, drilled, and sometimes partially assembled in factories, then shipped to the site. That reduces the number of workers needed on site per ton of steel.
But the steel still has to be aligned, bolted, and welded at height. The crane can lift the beam into place, but someone has to guide it, connect it, torque the bolts. That's not automated. That's a person on a beam.
And that's why I don't think the trade is dying. It's evolving. The low-skill end is being automated or prefabricated away. The high-skill end is more valuable than ever. If you're building a stadium or a bridge or a high-rise in a seismic zone, you need people who understand high-strength bolting, weld certification, torque calibration. You need people who know metallurgy well enough to know when a joint is right and when it's going to fail.
Daniel picked up on this in the documentaries. The crews aren't just strong. Some of them know forging and fastening at a level that's basically engineering. The highest-strength structures don't tolerate guesswork.
Welding certification alone is a whole career. You have to understand different welding processes, different filler materials, preheat requirements, post-weld inspection. A bad weld on a bridge can kill people. A bad torque spec on a high-strength bolt can kill people. The modern ironworker is a skilled technician who also happens to work eight hundred feet up.
Which is a wild combination when you think about it. The physical courage of the old riveters, plus the technical knowledge of an engineer, plus the paperwork of a compliance officer.
The paperwork is real. Fall protection is mandatory now, and that's a good thing, but it comes with documentation. Harness inspections, anchor point certifications, rescue plans. The old-timers complain about it, and I understand why, but the fatality rates have dropped dramatically. The trade is safer now than it's ever been.
Safer but still physical. That's the thing Daniel kept coming back to. The pouches, the tools, the sheer weight of the components. Even with cranes, even with better rigging, the job is still about moving heavy steel at height. The crane gets the beam to the right floor, but the ironworker has to guide it, shim it, bolt it. That's manual work.
And the beam doesn't care about your feelings. It weighs what it weighs. If it swings, you brace it or you get out of the way. The physicality is inherent to the job. You can't automate away the person who has to be there to make the connection.
So where does this leave the future? The trade is shrinking in raw numbers, probably. Prefabrication and modular construction will keep eating into the on-site work. But the remaining ironworkers will be more specialized, more technical, and arguably more essential.
The recruitment challenge is real, though. The generational pipeline that worked for the Mohawk communities and for white ethnic working-class families in the twentieth century is weaker now. Fewer young people are entering the trades in general. The union is actively trying to bring in apprentices, but it's a hard sell. The work is dangerous, seasonal in some regions, and physically brutal. You can make good money, but you earn it.
Yet the cultural register persists. Walking the iron is still a badge of honor. The bravado, the pride, the sense that you're doing something most people couldn't do. That culture hasn't gone away, even as the tools have changed.
That's the thing about ironworking. It's not just a job. It's an identity. You don't just work as an ironworker. You are an ironworker. And that identity has survived the shift from rivets to bolts, from shipyards to skyscrapers, from the nineteen twenties to now. I don't see that disappearing.
The question is whether the identity can survive the next shift. When the work becomes more technical and less physical, when the crews are smaller and the prefab is bigger, does the culture hold? Or does it become something else?
I think it holds, but it changes. The pride shifts from pure physical courage to technical mastery. Instead of bragging about the rivet you caught, you brag about the weld you made that passed inspection on the first try. The height is still there, the danger is still there, but the skill is different.
The generational pipeline? The Mohawk crews, the family connections?
That's the open question. The Mohawk presence is still real, but it's not what it was in the nineteen twenties. The communities are smaller, the economic pressures are different. The union is trying to build new pipelines, but you can't manufacture a century of cultural tradition overnight.
That might be the thing worth watching. Not whether the trade survives, because it will. But whether the cultural transmission survives. Whether the next generation of ironworkers comes from the same families, the same communities, or from somewhere entirely new.
Hilbert: The thrower was the job.
What?
Hilbert: Everyone talks about the catcher. The catcher's the one in the photographs, the can, the glove. But the thrower was the job. He had to read the wind, the distance, the angle. He had to put a rivet the size of a finger into a space the size of a fist, forty feet away, four stories up, while standing on a beam. The catcher just had to be where the rivet was going.
That's a fair correction. The thrower doesn't get enough credit.
Hilbert: I did it for a summer. Nineteen seventy-eight. Bridge repair crew in Ohio. I was the heater, not the thrower, but I watched the thrower every day. Portable forge, rivets glowing orange, July heat. I lasted six weeks. Dropped a rivet out of the tongs, it landed on my boot, burned through the leather before I could shake it off. That was the end of my riveting career.
You were the heater. So you were standing next to a forge in Ohio in July.
Hilbert: Long sleeves, heavy gloves, leather apron. The heat was the worst part. The height didn't bother me. The heat did. Hundred and ten degrees outside, and I'm standing next to a forge that's running eighteen hundred degrees. You'd drink a gallon of water and never pee.
That's the detail that never makes it into the documentaries. The dehydration, the heat exhaustion. The romantic version is all about the height and the danger. The reality is that half the job was just not passing out from the heat.
Hilbert: I caught one bare-handed once. Just to prove I could. The thrower put it right in my palm. You have to move fast, catch it and drop it into the hole in one motion. I did it. Still have the scar.
Of course you do.
Hilbert: The tongs are in my garage. Rusted now. I can't throw them out. Every time I see them I think about that summer and I'm glad I only did it once.
The bare-handed catch is exactly the kind of thing that becomes legend. It wasn't standard practice, but everybody on the crew had a story about someone who did it. It was a way of proving you belonged.
Hilbert: The young guys today have it easier with the fall protection and the cranes. But they have it harder with the paperwork. Every bolt has a torque spec, every weld has an inspection, every harness has a certification date. We just threw rivets and hoped.
The trade's evolving, but the stories stay the same. The scar, the tongs, the summer on the bridge. That's the generational pipeline in miniature.
Hilbert: I wouldn't do it again. But I'm glad I did it once.
That's the thing about the trade. Most people couldn't do it at all. The ones who can, even for a summer, carry it with them.
The tongs in the garage. That's the whole story right there. The trade doesn't let you go, even after you've stopped.
The open question is whether the next generation will have their own version of the tongs. Whether the pipeline holds as the work gets more technical and less physical. The Mohawk crews are still there, but the communities are smaller. The union is recruiting, but the sell is harder.
The structures that need the highest strength will always need people who understand fastening and forging. That's not going away. The question is who those people will be, and where they'll come from.
That's the thing to watch. Not whether the trade survives. It will. But whether the culture survives with it.
This has been My Weird Prompts. Thanks to our producer, Hilbert Flumingtop, for keeping the show running.
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