Track maintenance on RTD’s A Line from Union Station to DIA will be disrupted starting Monday through May 8, necessitating shuttle bus service.

Between 7 a.m. and 5 p.m. Saturday, customers can board shuttle busses for transportation between the Union and Central Park stations. Riders should be aware that shuttle service will not be on the same schedule as train service.

Bus shuttle boarding locations:

• Union Station, Gate B22 (located in underground bus concourse)

• 38th•Blake Station, board shuttle in front of the station

• 40th•Colorado Station, Gate B

• Central Park Station, Gate B3

Rail service to the airport will resume following completion of the work. The first train with continuous service to Denver Airport Station is scheduled to depart Union Station at 5 p.m. The first train with continuous service to Union Station is expected to depart Denver Airport Station at 5:57 p.m.

A Line service will operate every 30 minutes between Union and Denver Airport stations Sunday through April 30 to allow trains to continue on a single track between the following impacted stations while work is performed:

• Sunday and Monday: Customers board on Track 2 for both directions at 38th•Blake Station, 40th•Colorado Station and Central Park Station. Check station signs or Service Alerts for information

• Tuesday and Wednesday: Customers board on Track 1 for both directions at 38th•Blake Station and 40th•Colorado Station. Check station signs or Service Alerts for information

Thursday, May 1 through Thursday, May 8, crews will perform track surfacing between Union and Denver Airport stations. Trains from both directions will use one track during the work, which will take place during off-peak hours.

Bus shuttles will serve the A Line between Denver Airport and 61st·Peña stations Saturday, May 3, beginning at 3 a.m., while crews perform surfacing on the tracks. Rail service to the airport will resume following completion of the work.

The first train with continuous service to Denver Airport Station is scheduled to depart Union Station at 7:30 a.m. The first train with continuous service to Union Station is expected to depart Denver Airport Station at 8:27 a.m.

Bus shuttle boarding locations:

• Denver Airport Station: Arrivals at Gate 6; Departures at Gate 7 — Located at the DEN Transit Center, Level 1, adjacent to the Westin Denver International Airport Hotel. The DEN Transit Center can be accessed at the south end of Jeppesen Terminal by exiting through the glass doors and taking the escalator or elevator down to ground level

• 61st•Peña Station: In front of the station

For more information, visit RTD’s Service Disruptions page and use the agency’s Next Rideweb app to plan your trip, view other options and receive Service Alerts.