Gear up: there’s some complicated stuff happening on the Blue and Yellow lines this weekend.

The Pentagon, Pentagon City, and Crystal City stations will all be closed so that Metro can complete some major lighting upgrades, install cables to allow for cell service, and generally perform rail maintenance. Shuttle buses will replace trains on three different routes between National Airport and Rosslyn: the Blue Line Shuttle will travel between Braddock Road, Crystal City, Pentagon City, Pentagon, and Rosslyn, with no stop at the airport; the D.C.-Airport Express Shuttle will travel between the airport and L’Enfant Plaza station; and the Pentagon-Airport Shuttle will travel between the airport, Crystal City, Pentagon City, and Pentagon stations.

It’s the same deal on the Yellow Line. The final trains on both lines will depart about 25 minutes earlier than usual, to accomodate shuttle bus times.

At least we can count on the other lines to cart us around this weekend: Only the Blue and Yellow lines have station closures or any kind of delay. All the other lines will be running regular weekend service.

Here’s more detail from the transit agency (be sure to check out its route suggestions, depending on where you’re trying to get):

Red Line

• Regular weekend service. No track work.

Orange Line

• Regular weekend service. No track work.

Silver Line

• Regular weekend service. No track work.

Blue Line

• Regular weekend intervals between Franconia-Springfield & National Airport and between Arlington Cemetery/Rosslyn & Largo Town Center

• Free shuttle buses replace trains between National Airport, Crystal City, Pentagon City, Pentagon and Rosslyn on three routes

  • Blue Line Shuttle (No stop at National Airport) – every 5-10 minutes between Braddock Rd, Crystal City, Pentagon City, Pentagon, Rosslyn
  • DC-Airport Express Shuttle – every 5-10 minutes between Reagan National Airport and L’Enfant Plaza Metro Station in Downtown DC
  • Pentagon-Airport Shuttle – every 15 minutes between Reagan National Airport, Crystal City, Pentagon City, Pentagon only
    • Stations closed: Pentagon, Pentagon City and Crystal City
    • Traveling to/from Arlington Cemetery: Blue Line trains will provide service between Largo Town Center and Arlington Cemetery until 7 p.m. each day. There will be no service to/from points south (e.g. Pentagon), and no shuttle bus service at Arlington Cemetery.
    • Traveling to/from Reagan National Airport:
      • From Braddock Road and points south: Use Metrorail. Blue and Yellow line trains will operate between National Airport and Franconia-Springfield and Huntington.
      • From Pentagon, Pentagon City or Crystal City: Take the Pentagon-Airport Shuttle from Pentagon, Pentagon City or Crystal City to Reagan National Airport.
      • From DC and points north: Take Metrorail to L’Enfant Plaza and transfer to DC-Airport Express Shuttle (7th & D Street exit).
    • Last Train Time: To allow for shuttle bus connections, the last train will depart Franconia-Springfield and subsequent stations 24 minutes earlier than normal.
  • Tap your SmarTrip card each time you enter and exit the Metrorail system. Riders traveling through the work zone will be charged for a single, continuous trip.Work performed: Station lighting upgrades, installation of cable/communication equipment to support cellular service in tunnels and new radio system, rail and tunnel maintenance.

Yellow Line

• Regular weekend intervals between Huntington and National Airport

• Free shuttle buses replace trains between National Airport, Crystal City, Pentagon City, Pentagon and Rosslyn on three routes

  • DC-Airport Express Shuttle – every 5-10 minutes between Reagan National Airport and L’Enfant Plaza Metro Station in Downtown DC
  • Pentagon-Airport Shuttle – every 15 minutes between Reagan National Airport, Crystal City, Pentagon City, Pentagon only
  • Blue Line Shuttle (No stop at National Airport) – every 5-10 minutes between Braddock Rd, Crystal City, Pentagon City, Pentagon, Rosslyn

• Stations closed: Pentagon, Pentagon City and Crystal City

• Traveling to/from Reagan National Airport:

  • From Braddock Road and points south: Use Metrorail. Blue and Yellow line trains will operate between National Airport and Franconia-Springfield and Huntington.
  • From Pentagon, Pentagon City or Crystal City: Take the Pentagon-Airport Shuttle from Pentagon, Pentagon City or Crystal City to Reagan National Airport.
  • From DC and points north: Take Metrorail to L’Enfant Plaza and transfer to DC-Airport Express Shuttle (7th & D Street exit).
  • Tap your SmarTrip card each time you enter and exit the Metrorail system. Riders traveling through the work zone will be charged for a single, continuous trip.
  • Work performed: Station lighting upgrades, installation of cable/communication equipment to support cellular service in tunnels and new radio system, rail and tunnel maintenance.

Green Line

• Regular weekend service. No track work.