10/25/2015

DCMP 10 25 2015

DCMP 10 25 2015

Excavation for the foundations at the Herndon station has begun.

Most of the sound wall at the Innovation Center Station are complete. The foundation for tower crane is within the footprint of the north, track N2 sound wall, not in the N2 track way as noted in my previous post.

The bridge girders over Centerville Road have been set. They are of the same design as the girders over Horsepen Run.

The right of way barrier walls east of Rudder Road have proceeded several hundred feet more further east.

Columns have begun to come out of the ground west of the east abutment west of Rudder Road.

Excavation at the airport station on the mezzanine side of the of the pedestrian tunnel is nearly complete. Columns have begun to come out of the ground west of the station.

All of the mainline columns from the southern most column along Airfright Lane to the shoulder of the Dulles Greenway are done. Girders continue to be set heading north along Autopilot Drive, as of this date 36 have set along Autopilot Drive and 8 along Airfright Lane.

All of the column in the Dulles Yard lead Y are done. I did not go back into the woods to check the progress on rest of the the columns west of the east lead junction, I think we are safe to assume they are mostly done.

No work has begun on the columns in the median of the Dulles Greenway.

Land is being cleared on the north side of the Dulles Greenway to make way for the entrance at the Loudoun Gateway station. Land is also being cleared on the south side for what appears to be a staging area.

Land is being cleared on the remainder of the site at Dulles Yard.

Most of the girders between the abutments over Broad Run have been set. To reduce the disruption to traffic on the Dulles Greenway the contractor built the column in the stream bed and set those girders before building the abutments and setting the on girders either side of the stream.

Test track and Commissioning Facility

The track work on the test track is done. The signals at the crossover are in place south of the E10 Greenbelt interlocking and are covered with bags. The marker coils for the simulated station alone with the signage marking the location of the ends of the station are in place. The simulated station is located under the Greenbelt Road overpass. The north end is roughly 185' north of the north side of the overpass. The center of the platform is located at roughly E 609+95.

Dulles Access Road:
East of Herndon. Herndon station. Herndon station.
Innovation Center station. Median of Dulles Access Road west of Rudder Road. Median of Dulles Access Road west of Rudder Road.
East elevated abutment and columns in median of Dulles Access Road west of Rudder Road. East elevated abutment in median of Dulles Access Road north of Aviation Drive. Straddle bent columns for elevated flyover of eastbound Dulles Access Road north of Aviation Drive.
Straddle bent columns for elevated flyover of eastbound Dulles Access Road north of Aviation Drive. Straddle bent column for elevated flyover of eastbound Dulles Access Road and abutment north of Aviation Drive. Straddle bent columns for elevated flyover of eastbound Dulles Access Road north of Aviation Drive.
Columns and east elevated abutment in median of Dulles Access Road north of Aviation Drive.

Dulles Airport:
East end Dulles Airport station. Dulles Airport station mezzanine excavation at pedestrian tunnel. Dulles Airport station mezzanine excavation.
Dulles Airport station mezzanine excavation at pedestrian tunnel. Pedestrian tunnel at Dulles Airport station entrance looking south. Pedestrian tunnel at Dulles Airport station entrance looking south.
Pedestrian tunnel at Dulles Airport station entrance looking north. Columns and west ancillary excavation. Dulles Airport station mezzanine excavation.
Columns west of Dulles Airport station. Autopilot Drive north of Rudder Road. Guiders Autopilot Drive.
Guiders Autopilot Drive. Guiders Autopilot Drive. Autopilot Drive north of Rudder Road.
Guiders Autopilot Drive. Cranes used to set elevated guiders. Autopilot Drive south of Materials Road.
Autopilot Drive south of Materials Road. Autopilot Drive north of Materials Road. Autopilot Drive north of Materials Road.

Dulles Greenway:
East Dulles Yard lead,west lead, straddle bent columns Dulles Greenway. Clearing of land for entrance at Loudoun Gateway station. Clearing of land for entrance at Loudoun Gateway station.
Staging area VA-606, south side of Dulles Greenway.
Crane used to set guiders over Broad Run, east end.
Guiders over Broad Run, east end.
Crane used to set guiders over Broad Run, west end.
Crane used to set guiders.

Test track and Commissioning Facility:
Signal at south end of test track crossover. North of Greenbelt Road. Sign marks the location of the north end of simulated station platform.
South of Greenbelt Road. Sign marks the location of the south end of simulated station platform.
Restored security fence a contractor staging area. North of Berwyn Road. South of Berwyn Road.

Pictures at picasaweb.google.com/cambronj DCMP 10 25 2015.

Pictures at picasaweb.google.com/cambronj Greenbelt Test Track and Commissioning Facility.



8/24/2015

DCMP 08 23 2015

Work has commenced on the excavation of the tunnels that will hold the conduits that will carry third rail power from the substation to the right of way east of Dulles Airport. Work continues on the installation of the 34.5 KV power feed bus.

Grading work continues from roughly Centreville Road to the location of the east abutment north of Autopilot Drive.

The foundations for the Innovation Center station are mostly done. A tower crane has been erected at what looks like mid platform in the track bed of track N2, north side, of the station.

The east abutment north of Autopilot Drive is well underway.

Excavation for the Dulles Airport station mezzanine has begun. The lanes of Saarinen Circle have been shifted to accommodate the excavation.

There were reports of cracks in the precast girders shortly after they were set on the columns along Air Fright Lane in April. No reports have been made as what will be done with those girders. It seem the cracking issues has been addressed as the Track N2 girders were set on the columns north of the Hertz Rent-a-car entrance on Autopilot Drive.

All but a couple of the mainline columns from southern most column along Airfright Lane to the shoulder of the Dulles Greenway are done. Most of the columns for the east yard lead are done and all of the west yard lead column are done from the junction of the yard leads to the shoulder of the Dulles Greenway. The column for the straddle bents that will support both the mainline and the west yard lead have been built. Work on the column piles in the median of Dulles Greenway has not begun yet.

Test track and Commissioning Facility

The commissioning facility building has been turned over to WMATA and is now being used by the folks charge with making the 7k cars revenue ready.

The multilevel parking structure has also been turned over to WMATA and is being used by employees.

The test track ballast has been groomed to its finished elevation. Third rail section have been installed but have not been bolted and bonded. The track circuits Wee-Z bonds and marker coils to control automatic station stops have been installed.

Dulles Access Road:
Tower crane Innovation Center. Dulles Access Road east of Rudder Road. East elevated abutment in median of Dulles Access Road west of Rudder Road.
East elevated abutment in median of Dulles Access Road south of Aviation Drive.

Dulles Airport station:
Site of Dulles Airport station. Site of Dulles Airport station. Dulles Access Road at Saarinen Circle.
South end of Dulles Airport station. Dulles Access Road at Saarinen Circle. Dulles Airport station mezzanine excavation.
Dulles Airport station mezzanine excavation. Dulles Airport station mezzanine excavation. Dulles Airport station excavation west ancillary.
Dulles Airport station mezzanine excavation.

Dulles Airport:
Autopilot Drive north of Rudder Road. Autopilot Drive north of Rudder Road. Autopilot Drive north of the Hertz Rent-a-car entrance.
Autopilot Drive south of Materials Road. Autopilot Drive north of Materials Road.

Dulles Greenway:
South of east Dulles Yard lead junction. East Dulles Yard lead junction Dulles Greenway. East Dulles Yard lead junction Dulles Greenway.
East Dulles Yard lead junction Dulles Greenway. East Dulles Yard lead. East Dulles Yard lead left, west lead right.
West Dulles Yard lead. West Dulles Yard lead. West Dulles Yard lead.
East Dulles Yard lead junction with west yard lead. East Dulles Yard lead junction with west yard lead. Dulles Yard lead.
Dulles Yard lead. Dulles Yard lead. Two track pier cap rebar cage.
Dulles Yard lead. West end of Dulles Yard lead elevated. West Dulles Yard lead, straddle bent columns Dulles Greenway.
West Dulles Yard lead, straddle bent columns Dulles Greenway. East Dulles Yard lead,west lead, straddle bent columns Dulles Greenway.

Test track and Commissioning Facility:
South of Greenbelt station.
North of Greenbelt Road.
South of Greenbelt Road.
North of Berwyn Road. Wee-Z Bond. Third Rail.
South of Berwyn Road. Berwyn Road pedestrian bridge. Berwyn Road pedestrian bridge.

Pictures at picasaweb.google.com/cambronj DCMP 08 23 1015.

Pictures at picasaweb.google.com/cambronj Greenbelt Test Track and Commissioning Facility.