Yesterday's McLean Connection had a great update on the status of the Metro Extension. Seems like everything is proceeding full steam ahead as scheduled.
Phase I of the project, which began early last spring, is scheduled to be completed by 2013 and will take the Metro from the Orange line, through Tysons Corner and out to Reston. This phase includes the construction of "support columns for the aerial track," now under construction near the 495-66 Interchange and Route 267 (Toll Road and Dulles Connector). This is where the Orange Line will branch off and head out through Tysons Corner and eventually out to Dulles Airport. According to the Connection, "Phase 1...is mostly above ground and features a tunnel along Route 123 between the Tysons Corner Center and Tysons Galleria malls. The tunneling began in October using a machine called the 'Drill Jumbo,' which uses the New Austrian Tunneling Method."
In addition, work is also underway for the 5 new Metro Stops being constructed during this. As summerized by the paper, four of these will be in the Tysons area and one in Reston:
The Tysons East station will be inside the Capital Beltway. The Tysons Central 123 station will be located at Tysons Boulevard and Route 123. Tysons Central 7 is along Route 7 near Route 123. The Tysons West station will be built at Route 7 and Spring Hill Road. The rail line then follows the median of the Dulles International Airport Access Highway to Reston where the final station in this phase is being built at Wiehle Avenue.
So next time your stuck in traffic out near Tysons, know that it is only temporary and it's for a good cause!