9/14/2012

DCMP 09 08 2012

The last span of the elevated in the median of the Dulles Access Road was set on 07 17 2012 completing all of the bridge and elevated construction.

Back to the east, all of the sound barrier parapets on the flyover bridges have been installed. Virtually all of the parapets on the elevated between the east abutment in the median of the Dulles Connector Road and the Tysons Corner station have been installed. More then half have been installed between the Greensboro and Spring Hill Road stations. Most of the ones that remain to be installed are on the north side along outbound track N2. West of the Spring Hill Road stations the parapets have been installed roughly 200' west of the straddle bent over eastbound VA-7 Leesburg Pike on inbound track N1 and just south of the eastbound lanes of the VA-267 Dulles Toll Road on outbound track N2.

Rail has been pulled west to the west abutment in the median of the Dulles Access Road on track N1, and to a point near the straddle bent over the eastbound VA-267 Dulles Toll Road. From the west track has been laid to the bottom of the grade of the west abutment retained fill.

Train control has been installed in the junction and testing is being done on the Orange line main line tracks. I do not know if the third rail has been energized on the N route Silver line tracks in the junction. I also do not know if feeler car has been run through the area.

The Falls Church Yard lead cut and cover tunnel has been completed and the surface restored, however the track between the yard and the yard lead junction has not been laid.

The platform canopy at the Tysons McLean station is nearly complete. The mezzanine to platform escalators and elevators along with the escalators in the entrance pavilion on the south side of VA-123 Dolley Madison Boulevard have been installed. The emergency exit structure at both ends of the station are in place along with the stairs in side. The columns for the pedestrian bridge connecting the entrance pavilion to the station mezzanine are in place. The contractor tasked with the construction bridge is do so on property the south south of the entrance pavilion that will eventually become the station off street bus terminal. After they are assembled they will be transported to the columns and lifted into place.

Most of the heavy construction taking place at the Tysons Corner station is happening in the area of the entrance pavilion on the south side of VA-123 Chain Bridge Road in front of Tysons Corner Center. The mezzanine to platform escalators and elevators have been installed. The emergency exit structure at the east of the platform is in place.

At the Greensboro station construction has begun on the assembly of the station canopy. The construction of both entrance pavilions are well under way. The mezzanine to platform escalators and elevators have been installed.

At the Spring Hill road station construction of both entrance pavilions are well under way. The mezzanine to platform escalators and elevators have been installed.

At Wiehle Avenue the south entrance pavilion is well under way the north entrance pavilion will be integrated into the Reston Station development that is presently under construction on the former park and ride property.

The station with fare collection mezzanine above the platform (Tysons Corner, Greensboro and Wiehle Avenue) will have the arched combination mezzanine platform canopy. The station with fare collection mezzanine under the platform (Tysons McLean and Spring Hill) will have the gabled platform canopy.

Couple of oddities I have noticed:

The south entrance pavilions at the Greensboro and Spring Hill stations are being built partly in the right lanes of VA-7 Leesburg Pike.

At several location the train control contractor is unable to install of the interlockings signals because the surface mounted cable trays next to the barrier walls is located where the basses for signal poles need to be.

There are various items that look as if they were considered as after thoughts. Such as drainage from bridge decks, traction power cables locations. On the existing railroad bridge deck drainage pipes are inside the columns as are the conduits for traction power cables. On this project the bridge deck drainage pipes are surface mounted on the columns as are the cable trays that carry the traction power cables. I am going to guess that before all is said and done I will also notice other things that were changed or added as after thoughts.

Published 09 14 2012

VA I-66:
K&N Junction K98 42 signal governing movement inbound from track N1 to K1. K Route and VA I-66 flyover, east abutment. VA-257 median, outbound track N2 left, inbound track N1 right.
VA-257 median, inbound track N1 column drain pipe brackets.
VA-257 median, inbound track N1 left, outbound track N2 right. VA-257 median, inbound track N1.

Falls Church yard lead:
Falls Church Yard lead west tunnel portal. Falls Church Yard lead west tunnel portal.
Falls Church Yard lead west tunnel portal.
Falls Church Yard lead west tunnel portal. Restored road surface at Falls Church Yard lead cut and cover westbound VA-267. Falls Church Yard lead east tunnel portal.

VA-267 Dulles Connector Road:
Balwin Drive interlocking N92 06 signal. East abutment VA-267. Straddle bents over eastbound Dulles Connector and Toll Roads VA-267.

VA-123 Dolly Madison Boulevard:
VA-123 Dolley Madison Boulevard at Anderson Road. VA-123 Dolley Madison, Anderson Road traction power tie breaker station. VA-123 Dolley Madison Boulevard west of Anderson Road.

Tysons McLean:
VA-123 Dolley Madison Boulevard east of Scotts Crossing Road. Pedestrian bridges McLean station. Pedestrian bridges McLean station.
Pedestrian bridges McLean station. Pedestrian bridges McLean station. South entrance pavilion McLean station.
South entrance pavilion McLean station. South entrance pavilion and McLean station. McLean station.
East end of mezzanine McLean station.
Pedestrian bridge abutment at mezzanine McLean station.
McLean station.
Mezzanine to platform elevators McLean station. Mezzanine to platform escalator McLean station. Mezzanine to platform escalator McLean station.
McLean station. McLean station. West emergency exit McLean station.
West emergency exit McLean station. McLean station. McLean station.

Tysons Corner:
Westpark Drive Tysons Corner looking east. Westpark Drive Tysons Corner looking west. Tysons Corner station.
East emergency exit Tysons Corner station. East emergency exit Tysons Corner station. Tysons Corner station.
Tysons Corner station. Surface to mezzanine elevators, west ancillary area Tysons Corner station. Tysons Corner station.
South entrance pavilion Tysons Corner station. South entrance pavilion Tysons Corner station. Tysons Corner station.
South entrance pavilion Tysons Corner station. Pedestrian bridge abutment at mezzanine Tysons Corner station. West ancillary area Tysons Corner station.
West ancillary area Tysons Corner station.

Greensboro:
East ancillary area Greensboro station. East ancillary, mezzanine Greensboro station. North entrance pavilion Greensboro station.
North entrance pavilion Greensboro station.
South entrance pavilion Greensboro station. Mezzanine Greensboro station.
Mezzanine Greensboro station. Mezzanine Greensboro station. Elevated VA-7 Leesburg Pike west of Greensboro station.

Spring Hill:
Elevated VA-7 Leesburg Pike and Spring Hill station. South entrance pavilion Spring Hill station. South entrance pavilion Spring Hill station.
South entrance pavilion Spring Hill station. North entrance pavilion Spring Hill station. South entrance pavilion, west emergency exit Spring Hill station.
Spring Hill station. South entrance pavilion Spring Hill station. Mezzanine to platform elevators Spring Hill station.
Mezzanine to platform elevators and escalators Spring Hill station. Spring Hill station. West emergency exit Spring Hill station.
Elevated VA-7 Leesburg Pike west of Westwood Center Drive / Tyco Road.

VA-267 Dulles Connector / Access Road:
Straddle bent over eastbound VA-7 Leesburg Pike east of VA-267 Dulles Toll and Access Roads. Flyover of eastbound VA-267 Dulles Toll and Access Roads west of VA-7 Leesburg Pike. West Abutment median of Dulles Access Road.
Median of Dulles Access Road west of west abutment. Median of Dulles Access Road west of west abutment. Signal protecting westbound entrance track N2 into Hunter Mill interlocking.
Signal protecting eastbound entrance track N1 into Hunter Mill interlocking. (Number plate is incorrect)

Wiehle Avenue:
South entrance pavilion, west emergency exit Wiehle Avenue. North entrance pavilion Wiehle Avenue, integrated into the Reston Station development. Wiehle Avenue station.
South entrance pavilion, Wiehle Avenue station. North entrance pavilion, Wiehle Avenue station. Wiehle Avenue pocket track signal on shipping pallet.
Interlocking signals protecting at end of pocket track. Wiehle Avenue station.

Pictures at picasaweb.google.com/cambronj 09 08 2012

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