The Texas Department of Transportation has reopened a section of U.S. Highway 287 near Memphis that was closed for nearly three days to clean up a hazardous chemical spill. TxDOT reopened the highway late Thursday after cleanup crews removed a truck, its contents and contaminated soils from the crash site, State troopers responded about 2:30 a.m. Tuesday to an overturned tractor-trailer that had spilled a chemical mixture of lead, calcium-zinc and Rea Tin 4435 onto the ground, Texas Department of Public Safety Trooper Chris Ray said.