sinkholes

A state report says water seeping through a pond's clay liner likely led to the massive sinkhole at a Branson area golf course.

The Springfield News-Leader reports the state Department of Natural Resources also says Bass Pro Shops, which owns the Top of the Rock Golf Course, should fill the sinkhole with rocks and install a plastic liner on top of the clay barrier to prevent future sinkholes.

The sinkhole, estimated to be about 60 feet in diameter and 30 to 40 feet deep, formed in May on the golf course's driving range.

Mapping sinkholes

Oct 2, 2014

The areas in red on the map below are where the Missouri Dept. of Natural Resources (DNR) has documented as having sinkholes.

Photo courtesy of Doug Gouzie

We put out some questions on social media to see what you wanted to know about sinkholes. First, here’s a clip of CoMo Explained where I explain everything we learned before talking to Missouri State University Associate Professor of Geology and sinkhole expert Doug Gouzie. You can also read about our previous sinkhole reporting here.


Missouri Department of Natural Resources

  On this week's Under the Microscope, Missouri is one of ten states at risk for sinkholes. 

Part 2: Sinkhole regulation in Boone County

Sep 25, 2014
Missouri Department of Natural Resources

The Boone County Storm Water Ordinance: What is it?

The Environmental Protection Agency (EPA) determined about 8 years ago that storm water can have a significant impact on the quality of streams and cave water in Boone County.

According to Stan Shawver, Director of Resource Management, “Rain water in itself is clean when it comes down from the sky, but when it hits particularly an open construction site with exposed earth works that can carry off construction debris, silt from the project, and those can make their way ultimately into the streams”.

Missouri Department of Natural Resources

What exactly is a sinkhole?

A sinkhole forms when the surface layer of ground collapses into a cavity underneath. Associate Professor of Geology at MU Martin Appold explains these features in more detail:

“They’re holes in the ground that form as a result of caves developing below the ground’s surface that come close enough to the ground’s surface that at some point the rock can’t support its own weight.”

“Ultimately the cause is from ground water that is percolating through the fractures, usually in limestone bedrock,” Appold said.