The Haul Road I Could Not See the End Of

People ask me what it is like to drive a haul truck and they always imagine the size first. The tyres taller than a man, the tray you could park two bakkies in, the ladder you climb to reach a cab that sits where a second storey would be. They are right that the size is the first thing. What they never guess is the second thing, which is the dust. For most of my working life the dust was the real story of the job, and nobody outside the mine ever heard it.

I started driving on the haul roads when I was twenty-six. I am forty-eight now. In between I have moved more tons of rock than I could count if I lived three lives, up and down the same ramps, in a cab high enough to see the curve of the pit. And for a long time I drove most of that distance looking into a brown cloud that I had made myself, because the truck in front of me had made its own, and the wind, when there was wind, only moved the problem around.

What the brown cloud really was

You have to understand what a dry haul road does. It is not a tar road. It is crushed rock and earth, graded flat, and a fully loaded truck rolling over it at speed lifts a wall of fine dust off the surface that hangs in the air long after you have passed. On a still day in the dry season the whole pit could disappear into its own haze by mid morning. I have crept down a ramp at walking pace because I genuinely could not see the tail lights of the truck ahead, and on a haul road a thing you cannot see is a thing that can kill you.

We talked about it, the drivers, the way you talk about weather you cannot change. We taped up the cab vents and still found a fine grey film on the dashboard every morning. We blew our noses at the end of a shift and I will not describe what came out, except to say it was the colour of the road. The older men coughed in a way the younger ones did not, and we all understood without saying it that the coughing was the road too, breathed in a little at a time over decades.

For years I thought of dust as simply the price of the work. It was in my clothes, my food, the creases of my hands. It was in the filters we changed too often and the windscreens we could never keep clear. And it was dangerous in ways we felt but did not measure. Sight lines gone. The spotter on the ground invisible to the man in the cab. Two machines the size of houses sharing a road neither driver could fully see.

The morning the road behaved differently

I remember the first stretch of road they treated properly, because I thought something was wrong with my eyes. I came over the top of the ramp expecting the usual brown wall and instead I could see all the way to the bottom. The truck ahead of me was throwing up almost nothing. The surface had a darker, firmer look to it, packed down rather than loose, and it held together under the weight instead of flying apart into the air.

I asked the shift boss about it at the break and he explained it was a proper dust suppression programme, not just the old water bowser driving up and down wetting the surface so that it turned to mud in one hour and dried to powder in the next. What they had put down actually bound the fines in the road surface so they stayed in the road where they belonged. I did not care about the chemistry. I cared that for the first time in years I could see the end of the road I was driving on.

That was when I started to understand that dust control was not a comfort or a nice-to-have. It was a safety thing, as fundamental as the brakes and the seatbelt, and we had simply been living without it for so long that we had stopped noticing the absence. A driver who can see the whole road can see the spotter, the water truck, the light vehicle that has no business being there, the edge. A driver in a brown cloud is guessing, and guessing with a hundred and more tons under him.

The difference it made to the body, not just the sight

The sight lines were the thing I noticed first, because they were dramatic and immediate. The thing I noticed slowly, over the seasons that followed, was my own body. The film on the dashboard was lighter. The thing in my handkerchief at the end of the shift was less. I did not cough the way I had started to in my late thirties, the cough that had frightened me when I heard it echoing in the older men.

I have no way to prove, as one man, what those years of cleaner air did or did not do to my lungs. But I know what the mine's own monitoring showed, because they put the numbers up, and the airborne dust readings on the treated roads were a fraction of what they had been. A proper dust suppression system is not for the comfort of the drivers, whatever we might selfishly feel about being able to see. It is because fine mineral dust breathed in, shift after shift, year after year, is one of the oldest and most patient killers in this industry, and it does its work so slowly that a young man cannot feel it happening.

What I tell the new drivers now

I am a trainer now as well as a driver. My knees have opinions about the ladder these days and I spend more time teaching than hauling. And when the young ones climb up for the first time, excited about the size, always the size, I tell them the same thing an older man should have told me at twenty-six.

The machine will not be what tests you. The machine is engineered and inspected and it will mostly behave. What tests you is the road and the air above it. I tell them that good dust suppression is the difference between a road you can read and a road that reads you, and that on a day when the pit is clear to the bottom they are safer than they will ever know, because the danger that did not happen leaves no mark.

Some of them get it straight away. Some of them, the ones who have only ever driven on treated roads, look at me as if I am an old man telling war stories, which I suppose I am. They have never crept down a ramp blind into their own cloud. They have never breathed a shift's worth of road and spent the evening coughing it back up. I am glad they have not. That is the whole point of the thing I am trying to explain to them.

I still drive sometimes, on a quiet afternoon, up to the top of the ramp where you can see the whole operation laid out below like a model. On a good day it is all sharp edges and clear air, the trucks small and distinct against the terraces, and you would never guess what it used to be. You cannot photograph the dust that is not there. You can only remember the years you drove into it, and be quietly, deeply grateful to see the end of the road.