SILVER LINE’S AERIAL GUIDEWAY: Silver Phase 2 Construction Continues

Construction of entrance pavilions, wayside facilities, paving, girder installations, aerial road crossings start as Dulles Airport, Reston, Herndon, and Loudoun Gateway work intensifies.

Construction of Phase 2 of the Silver Line has hit the 24 percent mark and design is virtually complete, according to information supplied by the Dulles Rail Project team to the Federal Transit Administration in mid- July.

Work continues at station sites and at 10 of the wayside support facilities such as traction power substations and train control rooms and mass excavation is ongoing at the Loudoun Gateway Station site.

Here’s a list of other work expected to be done in the next six to eight weeks:

– Track wall, storm pipe, and 34.5kV duct bank (which will feed power directly to the trains) work will be ongoing.

– Work at six of the nine pavilion sites will include  drilled shafts, footings, duct bank, utilities and clearing.

– Lane shifts, paving and striping continue along the Dulles Toll Road/ Airport Access Highway and Dulles Greenway.

– Concrete foundation pours and concrete barrier wall construction continue at the Reston Town Center Station.

– On-going steel erection at the Innovation Center Station continues.

– Assembly of the Innovation Center Station pedestrian bridges starts.

– Pre-cast erection at the Herndon Station is ongoing.

– The final pier shafts for the aerial guideway at Dulles will be drilled in early August.

  • 34.5kV duct bank work continues along Rudder Road and moves to Autopilot Drive and the cargo area.
  • Work on the four straddle bents over the Dulles Greenway will begin.
  • Storm pipe and 34.5kV duct bank work continues in the median of the Dulles Greenway.

Here’s what happening at  and near the Dulles Airport Station:

– Station column construction continues.

– Cross girder installation will be ongoing.

– Precast erection will begin.

– Fiber support steel will be installed.

– Removal of the pedestrian tunnel roof will start.

  • Girder installation and deck construction is scheduled to return to Autopilot Drive at the airport and continue south through the cargo area.
  • 34.5kV duct bank work continues along Rudder Road and moves to Autopilot Drive and the cargo area.


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