One minute, the street was there. The next, it was gone! It could mean only one thing: Omaha, Nebraska had uncovered yet another sinkhole.

Sinkholes are created when underground rock erodes. That means it washes away after being exposed to years of rain and snow. Sinkholes can be hundreds of acres big, or as small as a few feet. Some are deep enough to turn into ponds.

Usually sinkholes become sinkholes so slowly no one notices. But in the Omaha case, the sinkhole formed when the ground suddenly collapsed. With a loud noise, a section of a two-lane street sagged and then buckled. The sinkhole is about 25 feet wide and 15 feet deep. This has happened in Omaha three times in the last year!