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| WMATA: Dulles Corridor Metrorail Project Pictures 10 24 2010 (993590) | |||
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WMATA: Dulles Corridor Metrorail Project Pictures 10 24 2010 |
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Posted by Sand Box John on Mon Oct 25 00:16:23 2010  Both post-tension lifting gantry trusses as seen from parking garage D Tysons Corner Center. The lifting gantry truss in background is working the outbound track N2 span over eastbound VA-267 Dulles Connector Road. Lifting gantry truss in foreground is working the outbound track N2 span over the ramp from southbound Chain Bridge Road to southbound Capitol Beltway VA I-495 Outerloop. The center of the spans the trusses are working are roughly 4,840 line of sight feet from one another, or roughly 4,930 alignment feet from one another. This just one of the 358 pictures I took on Saturday. Progress report with selected photos to follow. John in the sand box of Maryland's eastern shore. |
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