The Houston Pilots Association has started moving vessels through the Houston Ship Channel, according to the U.S. Coast Guard.
Outbound ships began moving at 5 a.m. local time and inbound vessels an hour later, U.S. Coast Guard Lieutenant Michael Scott said in a telephone interview.
Fifty-one inbound ships were waiting to pass through the waterway, he said. No outbound vessels were backed up.
Vessel traffic was suspended Dec. 13 because fog hampered visibility.