That’s when he discovered the sinkhole. Authorities were called and the area was cordoned off. The sinkhole is approximately 40 feet deep and  is believed to have been caused by a collapsing vertical mineshaft.

The sinkhole has swallowed a tree and continues to grow.

For updates on this story, visit KCCI.

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Waymo autonomous vehicles operate across 65 square miles inside I-285 and have been involved in six incidents with Atlanta Public School buses since May. Waymo issued a recall because of their cars briefly stopping or slowing down before continuing forward while a bus was stopped and flashing its lights. (Courtesy of Atlanta Public Schools)

Credit: Courtesy of Atlanta Public Schools