Portion of Sea-Tac Airport Closed Due to Flooding

July 26, 2023
The flood, which began just before 7 a.m., closed all A gates south of A10. These gates are used by airlines such as United, Delta and some international carriers.

Jul. 25—A large flood of water closed the south portion of the A Concourse at Seattle-Tacoma International Airport on Tuesday morning.

The flood, which began just before 7 a.m., closed all A gates south of A10. These gates are used by airlines such as United, Delta and some international carriers, said Chris Guizlo, an airport spokesperson.

At 11 a.m., airport personnel were cleaning up the flood and working with airlines to move flights to alternate gates, Guizlo said.

By 4 p.m., two of the three gates had reopened. Guizlo expected the final gate, A12, to reopen in the evening. Access to the area will be limited to flights leaving out of those gates.

The flood has not affected operations outside the flood area, Guizlo said.

The south end of Concourse A will remain closed to passengers and employees until further notice.

The leak was caused by part of the fire sprinkler system opening, Guizlo said.

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