I’m not a road engineer, but it takes more conditioning of the road around the hole to patch (due to thermal events and traffic speed - especially in the US NE for example). A poorly filled pothole doesn’t remain filled very long if done poorly, but even if done well it may only last until the next winter. This then becomes the financial debate of patch vs replacement of road sections.
And to add to this, you also have to shut down said road for a time to repair the pothole, which could be costly (traffic-wise) in some areas at certain times.
There used to be a pothole in front of my house that always came back. It was at a low spot and sent waves of salty runoff into my yard in the winter every time someone drove through it.
During Covid I while I was working from home, I watched as some workers rolled up in a pickup truck, hopped out of the bed with two 5-gallon buckets of cold patch, and just dumped it into the puddle that was the pothole, loosely spread it around with a rake, hopped back in the truck and left. All within like 2 minutes. A few days later. Someone must have come by to actually top it off and tamp it down, but within days if not hours my yard and the sidewalk were full of little black pebble that had been splashed out.
I’m not a road engineer, but it takes more conditioning of the road around the hole to patch (due to thermal events and traffic speed - especially in the US NE for example). A poorly filled pothole doesn’t remain filled very long if done poorly, but even if done well it may only last until the next winter. This then becomes the financial debate of patch vs replacement of road sections.
And to add to this, you also have to shut down said road for a time to repair the pothole, which could be costly (traffic-wise) in some areas at certain times.
Speaking as a professional paver, this is absolutely the correct answer.
Audhd spotted
There used to be a pothole in front of my house that always came back. It was at a low spot and sent waves of salty runoff into my yard in the winter every time someone drove through it.
During Covid I while I was working from home, I watched as some workers rolled up in a pickup truck, hopped out of the bed with two 5-gallon buckets of cold patch, and just dumped it into the puddle that was the pothole, loosely spread it around with a rake, hopped back in the truck and left. All within like 2 minutes. A few days later. Someone must have come by to actually top it off and tamp it down, but within days if not hours my yard and the sidewalk were full of little black pebble that had been splashed out.