6/26/2016

DCMP 06 26 2016

DCMP 06 26 2016

Construction on all of the stations along the Dulles Access Road continues.

Right of way barrier wall have reached as far east the Fairfax County Parkway.

Excavation at the Reston Town Center station is mostly complete and the foundation are being poured. The second tower crane has been erected.

The walls and column to support the mezzanine and mezzanine canopy are done at the Herndon Station with the exception of the small section where the tower crane stands. The invert under the platform in the east half along with the track bed subgrade is has been completed. Traction power substation #13 west of the bus terminal loop has its conduit stubouts in place for both third rail feeds and 34.5 KV power feeds. The slab for the substation has not been poured.

The Innovation Center station has its platform and mezzanine in place including the station manages kiosk. Column foundation for the south pedestrian bridge are in place on both sides of Sunrise Valley Drive. The south entrance pavilion site has been cleared and the well casings for the entrance elevators pistons have be installed. Brush and trees have been cleared from the site for the north entrance.

Traction power substation #15 inside the loop ramp from southbound VA-28 Sully Road to eastbound VA-267 Dulles Toll Road is basically at the same stage as #13 at the Herndon station.

All of the columns and straddle bents north of Aviation Drive are done, forms on one pair remain to be striped. The straddle bent over the westbound Dulles Access road south of Aviation Drive is done, the one over the westbound lanes has been poured. The remainder of the columns between Aviation Drive and the Dulles Airport station are in various stages of completion.

The wall surrounding the Dulles Airport station mezzanine are mostly complete. The walls surround the west ancillary area are done. The columns that will support trackways and platforms in the station are in various stages of completion.

All of the columns west of the Dulles Airport station and south of Aviation Drive are done with one pair awaiting the stripping of the forms.

The first 4 girders set on the columns along Airfright Lane that were later to be discovered with cracks in them have been removed.

None of the columns south of the southern most column on the east side of Autopilot Drive have girder on them.

All of the column from the same southern most column to the eastbound shoulder of the Dulles Greenway have girders and completed decks and parapet on them. The columns of yard lead 3 between eastbound track N1 and the junction with westbound yard lead 2 have had their girders set. The deck has been poured to just short of yard lead 2 and the parapet 1/4 of the way. The columns for yard lead 1 and 2 from just east of the yard lead 3 junction to the columns just short of the west side of Horespen Lake have had their girders set. 4 150' girders have been set over Horespen Lake. Construction of the abutment west of hourspen lake has not begun. The columns for the mainline and yard lead straddle bents in the median of the Dulles Greenway are beginning to come up out of the ground. The eastbound shoulder of the Dulles Greenway between the on ramp from eastbound VA-606 Old Ox Road to south of the mainline flyover has been completed. Clearing of the site for traction power substation #18 adjacent to the right shoulder of the off ramp from westbound VA-267 Dulles Greenway to VA-606 Old Ox Road has begun.

According to the progress report (2.48 MB PDF file) released by MWAA dated 06 21 2016, 146 of the 338 84' girders have been set, 50 of the 88 72' girders have been set, 4 of the 4 150' girders have been set over Horespen Lake. 53 of the 173 spans have had their decks poured.

The clearing of the site for Loudoun Gateway station has begun. Lane shifting work has begun behind the Jersey walls along the eastbound shoulder.

The abutments for the bridge over Broad Run are done. The girders on the west end have been set, the ones for the east end have not.

Jersey walls are at various locations between Broad Run and the tail track west of the Ashburn Station.

No work has begun at the site of Ashburn station however some grading is taking place along the south edge of the Dulles Greenway right of way easement adjacent to the east end of the station.

Clearing of bedrock at the site of Dulles Yard continues. According to the same report, linked to above, the basement of the shop building has been excavated and the foundations for the inspection pit have been poured.

The bridge abutment that will carry the new westbound alignment of VA-606 Old Ox Road over Horespen Run is mostly done.

Dulles Access Road
East of Reston Parkway. Reston Town Center station. Reston Town Center station.
Reston Town Center station.
Reston Town Center station site of north entrance. West of Reston Town Center.
East of Herndon. East of Herndon. West of Fairfax County Parkway.
Herndon station. Herndon station platform invert. Herndon station.
Herndon station. Herndon station. Traction power substation #13 west of Herndon bus terminal.
Eastbound Barrier wall west of Monroe Street. Barrier walls west of Monroe Street. Innovation Center station.
Innovation Center station south entrance pavilion site. Innovation Center station. Development sign adjacent to Innovation Center station south entrance pavilion site.
Innovation Center station south entrance pavilion site. Innovation Center station. Innovation Center station.
Innovation Center station.

Dulles Airport:
Traction power substation #15 site. East of Rudder Road. West of Rudder Road.
Straddle bents north of Aviation Drive. Straddle bents north of Aviation Drive. Straddle bent north of Aviation Drive.
North of Aviation Drive. North of Aviation Drive. Straddle bents north of Aviation Drive.
South of Aviation Drive. South of Aviation Drive. Straddle bents south of Aviation Drive.
Straddle bents south of Aviation Drive. Saarinen Circle east of Dulles Airport station. Dulles Airport station.
Dulles Airport station east end of mezzanine at pedestrian tunnel. Dulles Airport station east end of mezzanine at pedestrian tunnel. Dulles Airport station mezzanine.
Dulles Airport station mezzanine. Dulles Airport station west ancillary. Dulles Airport station mezzanine and west ancillary.
Traction power substation #16 west of Dulles Airport station. Dulles Airport station. Dulles Airport station.
Airfreight Lane. Airfreight Lane. Airfreight Lane.

Dulles Greenway:
Mainline and east Dulles Yard lead (YL3). Mainline at east Dulles Yard lead (YL3). Mainline column south of Dulles Greenway flyover.
Mainline column south of Dulles Greenway flyover, east Dulles Yard lead (YL3). Piles staged in median of Dulles Greenway. West Dulles Yard lead (YL1, 2) Straddle bent columns in median of Dulles Greenway.
Dulles Yard lead (YL3). Dulles Yard lead (YL3). West Dulles Yard lead (YL1, 2) Straddle bent columns Dulles Greenway.
West Dulles Yard lead (YL1, 2). West Dulles Yard lead (YL1, 2) West Dulles Yard lead (YL1, 2)
West Dulles Yard lead (YL1, 2) Straddle bent columns in median of Dulles Greenway. West Dulles Yard lead (YL1, 2) Straddle bent column in median of Dulles Greenway. West Dulles Yard lead (YL3), mainline Dulles Greenway.
Traction power substation #18. Loudoun Gateway station. Loudoun Gateway station.

Dulles Yard:
Dulles Yard. Dulles Yard.
New abutment for VA-606 bridge over Horsepen Run. New east abutment for VA-606 bridge over Horsepin Run. New west abutment for VA-606 bridge over Horsepin Run.

Pictures at picasaweb.google.com/cambronj DCMP 06 25 2016.



4 comments:

  1. Anonymous6/30/2016

    Hey John! I have been following your blog for a while now, and it is very informative. I live in the northern VA area, and I see this everyday and I wanted to point out a few possible errors. 1 is that I believe the duct bank is being installed in the Greenway median by the flyover column, as the contractor is trenching there and if I understand, the clearing for TPS #18 has already been completed (or at least has had clearing work done once) but not ongoing. Thanks again and I love the updates!

    ReplyDelete
  2. The 34.5 KV power bus duct bank runs from the junction boxes adjacent to TPS #15 to the north side of Rudder Road then along the east side of Autopilot Drive to the median of the Dulles Greenway. At Rudder Road and Autopilot Drive a branch runs south to TPS #16 at the Dulles Airport station, another branch runs to Dulles Yard from the median of the Greenway where TPS #18 connects to bus duct bank. TPS #17 will be under the elevated along Autopilot Drive a couple hundred yards south of Material Road.

    One of the Dominion Virginia Power feeds connects to the bus duct bank at TPS #15 it runs north along the west side of VA-28 from the Dulles Airport substation. Out west power bus connects to Dominion Virginia Power near the data centers west of the Loudoun County Parkway.

    ReplyDelete
  3. Anonymous7/01/2016

    Thanks SBJ! I see this on my way to and from work, so I don't have time to stop and observe, so the stuff I can't see I turn to here to look at or get more info. Again keep us updated and informed!

    ReplyDelete
  4. Thanks for your updates. Very informative. It helps me understand what the heck is going on lol

    ReplyDelete