Jacmel Airport in Haiti is expected to open its runway to serve as an entry point for emergency supplies as part of ongoing rescue operations on the Caribbean Island following an earthquake.
The US military said the runway would be opened to supplement the overburdened Toussaint Louverture International Airport in Port-au-Prince.
The airport will initially receive C-130 air freighter deliveries to support Canadian humanitarian assistance efforts.
Toussaint Louverture International Airport is Haiti's main airport and is equipped with a single runway, which is currently receiving 200 arrivals and departures a day, compared with its pre-earthquake average of 13.
Haiti was hit by a 7.0-magnitude earthquake on 12 January with another major aftershock reported on 20 January, measuring 6.1 on the Richter scale.
Officials are looking at other entry sites in Haiti as well as the Dominican Republic to deliver relief supplies and equipment.