WASHINGTON (CBSDC/AP) — Metro says weekend work will affect passengers traveling on the red, green and yellow lines.

Metro says the track work will begin Friday night after crowds from the Washington Nationals playoff game have dissipated. Original plans called for work to begin at 10 p.m.

The track work will continue through Sunday, red line trains will share a single track in two areas. Those areas are between Grosvenor and Twinbrook and between NoMa-Gallaudet and Fort Totten. Metro says customers traveling through the work zones should allow about 15 minutes of extra travel time.

On the green line, trains will single track between Fort Totten and Prince George’s Plaza. Customers should allow 10 minutes of extra travel time.

Because of the work on the green line, yellow line trains will operate between Huntington and Mount Vernon Square only. There is no scheduled work on the orange or blue lines.

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