The town of Santee is looking into a sinkhole that erupted overnight, according to authorities. The Times and Democrat of Orangeburg reported the sinkhole is about 20-feet wide and 6-feet deep, and it’s not the first time in that area this has happened. Witnesses said they remember about five years ago there was another sinkhole about the same size, reported in the same area.
According to the USGS website, “sinkholes are common where the rock below the land surface is limestone, carbonate rock, salt beds, or rocks that can naturally be dissolved by ground water circulating through them. As the rock dissolves, spaces and caverns develop underground. Sinkholes are dramatic because the land usually stays intact for a while until the underground spaces just get too big. If there is not enough support for the land above the spaces then a sudden collapse of the land surface can occur. These collapses can be small, or they can be huge and can occur where a house or road is on top.”
Santee State Park manager Nathan Maiwald told the Associated Press the areas around Lake Marion are within the lines of a sinkhole system that he knows travels from North Carolina to Florida.
Santee officials are continuing to investigate and monitor the current sinkhole.