Royal Mail delivery trucks are being blamed for the crumbling state of the road in Springburn.
And the damage is so bad you can see it from space, with the deterioration clearly visible on satellite images taken for Google maps without zooming in to ground level.
The affected stretch in Turner Road is outside the busy Royal Mail sorting office and the high volume of traffic has taken its toll on the road surface.
The street is also used as a rat run for drivers getting to and from nearby Tesco and Costco stores.
Residents told the Evening Times the intersection is becoming increasingly dangerous.
Alan Sutherland, 47, from Springburn, said: "I've bashed into it driving before – it's very dangerous. During the winter I thought I had damaged the axle of my car driving over it. I notified the council but it just gave me the run-around.
"The delivery drivers just zoom through and don't care. It's been like that for so long, years not months.
"It was in around April last year when I started noticing how badly sunken it was."
Fellow resident, Malcolm Henderson, 57, also from Springburn, added: "It's just something that will never change. It's the Royal Mail trucks and traffic that is causing it definitely.
"You see them driving over it all the time. There are bricks on the road, I've had to swerve to avoid them. It's so dangerous to drive on."
James Kinlan, 65, from Springburn: "It's sunk in because of all the heavy traffic that passes over the top of it. It must just have been eroded away with all the lorries turning in to the depot."
Google images, taken as far back as last autumn, and possibly later, show the roundabout has been crumbling for months if not longer.
A spokeswoman for the Royal Mail said: "The roundabout at Turner Road is subject to use by heavy goods vehicle traffic from a number of outlets both sited within and outside the industrial estate.
"Royal Mail has contacted the local authority helpline on a number of occasions to bring this matter to their attention."
A Glasgow City Council spokesman said: "It is undoubtedly true that frequent use by heavy vehicles will take a toll on the road, particularly where they cut across obstacles, such as roundabouts, rather than using them properly. The damage will be assessed and scheduled for repair against our annual programme."
The Evening Times Pothole Watch campaign has been charting the state of the city's roads and has received thousands of complaints from readers about their roads.
We have exposed the damage done to city centre streets by utility firms digging up roads and failing to repair them properly.
And the problem does not just affect motorists – we've told of difficulties faced by cyclists and even pedestrians hit by flying pieces of road surface.
Just last month, we reported how a crater opened up in George Square, trapping a double decker bus.