DENVER (KDVR)— Expect long lines at Denver International Airport on Wednesday night due to the temporary closure of two out of three security checkpoints between 9 p.m. and 4 a.m.

All departing travelers entering the airport will be directed to the A-Bridge security checkpoint on level 6. The north and south security checkpoints on level 5 will both be closed.

Scheduled maintenance on the trains will be conducted during this time, so all arriving passengers must exit the airport via the A-Bridge walkway.

Signage and employees will be placed to direct passengers during the hours of the detour. A map of the airport is also available on DIA’s website.