Sinkhole creation

Some major factors that contribute to sinkhole formation:

Sinkhole forms

Sinkholes can develop gradually. Water filters down through crevices in the soil and weakens the underlying bedrock.

Hole widens

Underground voids develop. Holes widen as loose soil falls in, like sand falling inside an hourglass.

Hole grows

In as little as four hours a sinkhole can grow to more than 300 feet wide, 100 feet deep.