A levee has been breached at Columbia Lakes in Brazoria County, which is south of Houston, the Houston Chronicle reports.
Public-safety officials are urging residents to evacuate immediately.
“Get out now,” officials say.
The levee is along the Brazos River,
That area has already received a historic amount of rain and flooding, and a rejuvenated Tropical Storm Harvey is expected to pose an even greater threat to the water-logged region.
Harvey has already set a record for total rainfall from a tropical system, with 49.2 inches.