Round Rock residents woke up Thursday morning to discover a cave under a road in a subdivision.
During the past decades, hundreds of sinkholes have been reported around the world. The incidents are graphic examples of the dangers of taking geology for granted. Earth is not always as solid as a rock. Texas residents in Round Rock subdivision never expected to wake up to a deep hole in their neighborhood.
“It looks like the roof of the cave just collapsed and when it collapsed it broke our water line and also exposed a natural gas line,” Mike Petter, general manager for Brushy Creek MUD.
Authorities aren’t sure why the road collapsed uncovering the sizable underground formation, which caused at least 10 homes in the Woods of Brushy Creek subdivision to have water service interrupted. Round Rock locals never knew there was a massive cave underneath their feet.
“What exactly caused the opening is not known at this time,” Connie Watson, the spokesperson with Williamson County, said in a statement. “However, the initial examination of the karst feature shows that the limestone bed that forms the cave ceiling is scored and thinner where the utility lines were installed, and the cave ceiling appears to be more stable outside of that area.”
Classically, sinkholes occur in locations where water, unable to flow laterally, percolates through soluble rock, creating caverns and cavities. Often, the surface will gradually subside, causing a cover-subsidence sinkhole.
The U.S. Geological Survey says about 20 percent of the United States overlies karst terrain; the worst sinkhole damage occurs in Florida, Texas, Alabama, Missouri, Kentucky, Tennessee and Pennsylvania
Holy cow y'all!! Did you see this street collapse in West RR today?? Apparently, it's an underground cave!!!