West Burnside (in Portland, Oregon, where I live) seems to have a recurring problem with sinkholes magically appearing under the pavement. Typically they are huge. They can easily become potholes. Big-Ass Honking potholes if not caught in time.

And in classic Portland fashion, we can blame the problem, like all the other problems in the city, on the sewer system. Butt, of course we can.

Well, it looks like there may now be a solution to the problem of massive caves of poop water, oh ye engineers, and high school kids are the inventors:

Engadget: "Some high school students near Boston have figured out what has eluded transit agencies for hundreds of years: they have come up with the Road Iron, a device that detects and repairs potholes before they have a chance to form. The device looks for cavities below the pavement and then drills in and fills them, fixing the problems before they occur...

[Read more here]