Sinkhole Reveals Cave Under Central Texas Street

Sinkhole Reveals Cave Under Street Brushy Creek Municipal Utility District

What started as a sinkhole discovered on a street in a Central Texas neighborhood -- ended up with a deeper discovery.

Workers with the Brushy Creek Municipal Utility District responded to a reported water outage Thursday in a neighborhood near Round Rock in Williamson County and discovered a sinkhole with a cave lying beneath the roadway.

Firefighters say high heat sparked a massive mulch fire that burned for hours overnight in Texas. The fire broke out around 10:15 p.m. Monday night at a mulch manufacturing company in northwest Houston. Firefighters say no homes or nearby businesses were affected by the fire.

(Published Tuesday, Aug. 14, 2018)

County officials described the cave as a karst feature, which is formed when rocks dissolve over time. The cave is reported to be 22 feet deep, according to KXAN.

Crews have covered the hole to prevent people from exploring the cave. The roadway is expected to be closed for several weeks. Williamson County officials said they are working with the Texas Commission on Environmental Quality to determine the next step in making repairs.