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Mark Center

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The Mark Center is a new Department of Defense facility at Seminary Road and I-395 that holds 6,400 employees.

HOV vehicle/transit ramp on I-395

The Commonwealth has allocated $80 million for the construction of a reversible High Occupancy Vehicle/Transit ramp on I-395 at Seminary Road. The ramp will provide improved access for HOV and transit users working at or near the Mark Center site. The Department of Defense has allocated $20 million to construct short-term improvements developed by VDOT, which include a turn lane, ramp widening and pedestrian improvements on Seminary Road, Beauregard Street and I-395/Seminary Road.
Work will begin on the ramp in early 2014 and will be completed in late 2015.

Federal Highway Finding of No Significant Impact

Finding of No Significant Impact Request Letter

I-395 HOV Ramp at Seminary Road Response to Comments

Learn more about the High Occupancy Vehicle HOV/Transit Ramp Environmental Assessment

I-395 North Auxiliary Lane Between Duke Street and Seminary Road

Construction is scheduled to begin in early 2014 and be completed in late 2014.
Click here for documents


The Federal Highway Administration- Eastern Federal Lands Highway Division and the City of Alexandria implemented mid and short-term transportation improvements around the Mark Center which were completed in 2013.

These short-term improvements include:

  • Ramp widening on NB I-395 exit at Seminary Road  and turn-lane reconfiguration at the Seminary Road/
    I-395 rotary
    Completed,  December 2011

  • Median removal on Seminary Road west of I-395 
    Completed, late 2012

  • Intersection/turn lane modifications at Beauregard Street and Seminary Road
    Completed, late 2012 

  • Turn-lane expansion at Mark Center Drive and Seminary Road
    Completed, late 2012

  • On-ramp expansion from Seminary Road to I-395 south.
    Completed, late 2012

    For more information on the short and mid-term projects, click here.

Latest Mark Center News 

Mark Center HOV Ramp meeting -- Click here to see design/build RFP plans and presentation boards.

Traffic, bus improvements made at the Mark Center 

Click here
for up to date information on planned and current lane closures that can impact your commute to the Mark Center.

Traffic monitoring
Mark Center traffic monitoring study Final Report March 20, 2014  (2 MB)
Mark Center traffic monitoring study November 2013 Pt. 1  (4 MB)
Mark Center traffic monitoring study November 2013 Pt. 2  (4 MB)
Mark Center traffic monitoring study October 2013 Pt. 1  (4 MB)
Mark Center traffic monitoring study October 2013 Pt. 2 (6 MB)
Mark Center traffic monitoring study September 2013 Pt. 1  (5 MB)
Mark Center traffic monitoring study September 2013 Pt. 2 (6 MB)
Mark Center traffic monitoring study June 2013 (4 MB)
Mark Center traffic monitoring study May 2013 (5 MB)
Mark Center traffic monitoring study April 2013 Pt. 1 (3.1 MB)
Mark Center traffic monitoring study April 2013 Pt. 2 (3 MB)
Mark Center traffic monitoring study March 2013 (5 MB)
Mark Center traffic monitoring study February 2013 Pt. 1 (3 MB)
Mark Center traffic monitoring study February 2013 Pt. 2 (2.5 MB)
Mark Center traffic monitoring study January 2013 Pt. 1 (3 MB)
Mark Center traffic monitoring study January 2013 Pt. 2 (2.5 MB)
Mark Center traffic monitoring study November 2012 Part 1 (3.8 MB)
Mark Center traffic monitoring study November 2012 Part 2 (4.5 MB)
Mark Center traffic monitoring study November 2012 Part 3 (5.6 MB)
Mark Center traffic monitoring study October 2012 Part 1 (2.5 MB)
Mark Center traffic monitoring study October 2012 Part 2 (2.5 MB)
Mark Center traffic monitoring study October 2012 Part 3 (2.5 MB)
Mark Center traffic monitoring study September 2012 Part 1 (3.7 MB)
Mark Center traffic monitoring study September 2012 Part 2 (4.2MB)
Mark Center traffic monitoring study September 2012 Part 3 (4.8MB)
Mark Center traffic monitoring study September 2012 Part 4 (4.8MB)
Mark Center traffic monitoring study September 2012 Part 5 (3.5 MB)
Mark Center traffic monitoring study September 2012 Part 6 (4.8 MB)
Mark Center traffic monitoring study August 2012 Part 1 (3.7 MB)
Mark Center traffic monitoring study August 2012 Part 2 (3.9 MB)
Mark Center traffic monitoring study July 2012 (5 MB)
Mark Center traffic monitoring study June 2012  (4.7 MB)
Mark Center traffic monitoring study May 2012
Mark Center traffic monitoring study April 2012 (5 MB)
Mark Center traffic monitoring study March 2012 (6 MB)
Mark Center traffic monitoring study February 2012 (5.8 MB)
Mark Center traffic monitoring study January 2012 (8.4 MB)
Mark Center traffic monitoring study Sept. 2011 (6 MB)

Transit Options

Metrobus

Take Metrobus to the Mark Center from the Pentagon.



WMATA - 7M, Bus (Pentagon Metro)

WMATA 7X, 7W Bus (Pentagon Metro)

Carpooling / Slugging

Slugs and carpoolers can also easily access the Mark Center. The Mark Center Transportation Center is open between 5 a.m. and 7 p.m. and is part of the Mark Center North Garage Facility. 

A slugging lane is also provided on the west side of the North Garage and will be used by taxis during non-rush hours. However, because there is no HOV access to accompany the flow of traffic on I-395, the best slugging option for employees is to:

1. AM: Slug directly to the Pentagon and then take Metro bus 7M to the Mark Center.

2. PM: Take Metro bus 7M to the Pentagon and then slug from there.

Telework

When you telework, your trip to work can be as simple as walking from your kitchen to your home computer. Companies located in Tysons Corner and along the I-495 Beltway corridor in Virginia could receive up to $50,000 to start or expand a telework program.

Quick's Bus - Mark Center

Take Quick's Bus Company service to and from Stafford County and Fort Belvoir.

Vanpooling

Vanpooling is a great way to commute to work. Find out more by contacting one of these agencies.
From the Fredericksburg Region - GWRideConnect
From Prince William County - PRTC OmniMatch
From Fairfax County - RideSources
Other area? Use the Service Locator

DASH Shuttles

Take DASH Shuttles AT2 Local / Mark Center Express  from King Street Metro station.

DASH Bus schedules

The AT2X Mark Center Express, coupled with the existing DASH AT2 route, now provides service between King Street Metro and the Mark Center Transit Station at approximately every 10 minutes during the peak periods, from 6 a.m., 9 a.m., 3 p.m. and 6 p.m.  The express service does not make any stops between King Street Station and the Mark Center Transit Station.  

OmniRide

Service from locations throughout Prince William County to the Pentagon, the West Falls Church, Vienna and Franconia/Springfield Metrorail stations, Crystal City, Rosslyn/Ballston, downtown Washington, D.C., Capitol Hill and the Washington Navy Yard.

Commuter Resources

SmarTrip cards make it quick and easy to pay fares on public transportation, plus fares are discounted.    

Commuter Connections

If you live or work in the Metropolitan Washington D.C. area, Commuter Connections can provide you with information on all your commute options, so you can make a smart choice about how you travel to work.

Guaranteed Ride Home

This program provides commuters who regularly carpool, vanpool, bike, walk or take transit to work with a FREE and reliable ride home when one of life's emergencies arise.