Cave found in Brushy Creek neighborhood grows in size as new chamber is discovered

Cambria Cavern in Williamson County has now grown in size after a new chamber was discovered. (Photos courtesy: Williamson County)

A newly-discovered cave in Williamson County is now being measured at 200 feet long after a new chamber was found.

On Friday, geologists mapped three chambers in a cave that they thought stretched 170 feet.

By Monday, a fourth chamber had been discovered, adding an extra 30 feet to a cave that sits in the middle of a Brushy Creek neighborhood.

22 feet under the 8400 block of Cambria Drive, more discoveries are being made. On Monday, structural engineers, a biologist and geologists slipped through a hole in a plywood cover and dropped into a cave now labeled Cambria Cavern.

“They're looking over the cave and taking additional measurements,” said Connie Odom, Public Affairs Manager for Williamson County.

A picture, taken near the hole in the plywood cover, shows the biggest chamber in the cave.

Two other chambers were mapped last week, but now a fourth room is being investigated.

“It's smaller. It's not one you can walk into,” said Odom.

The discovery of the fourth chamber lengthens the cave to 200 feet. Structural engineers are checking the stability of its limestone roof.

“Does it look like there's a crack or not in there? So they're just trying to determine if it's been disturbed in some way or if it looks like it's the same cave that's been there a million years,” said Odom.

The roof of the cave underneath Cambria Drive collapsed last week.

“This was right underneath where the roof had collapsed,” said Terron Evertson, a Williamson County engineer, as he held up a 15 pound, 20 inch long stalactite.

The sinkhole destroyed stalagmites and stalactites that had been forming for thousands of years.

“It's littered down there with some of those that fell down,” said Evertson.

In addition to cave formations, Williamson County is also investigating if any endangered species live in Cambria Cavern. Beck Preserve is also located in the Brushy Creek neighborhood. Five of the seven caves on the preserve are home to an endangered species that is best described as a tiny, blind Daddy Long Legs.

“That Daddy Long Leg relative could just about stretch out and cover Mr. Lincoln's head on this penny,” said Gary Boyd, Director of the Williamson County Conservation Foundation.

Scientists and engineers emerged Monday from Cambria Cavern without all the answers. They'll spend the next few days investigating what, if anything, has taken up residence in the cave and how safe it is for anyone to call the houses sitting on top of it home.

Structural engineers should have a report put together by the end of this week or early next week.

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