SAN JUAN, Puerto Rico—A Puerto Rico dam damaged by heavy rains from Hurricane Maria was in danger of failing on Sunday, posing a risk to communities downstream, as people across the U.S. territory sought to dig out from the deadly storm.
Some 70,000 people who live downstream from the compromised Guajataca Dam in the northwest of the island were under orders to evacuate, with the structure in danger of bursting at any time.
