Tamara Rollison 804-786-2715


May 14, 2014

Projects will improve roads, interchanges in Northern Virginia, Montgomery County

CHARLOTTESVILLE – At its monthly meeting today, the Commonwealth Transportation Board (CTB) awarded three contracts worth approximately $123.5 million for major projects in Loudoun, Montgomery and Prince William counties, including a diverging-diamond interchange on U.S. 15 at Interstate 66.

The projects will improve mobility, enhance safety and extend the life of the state’s transportation network.

The projects are:


  1. Loudoun County, Route 606/Loudoun County Parkway and Old Ox Road – reconstruct and widen Route 606


The CTB awarded a nearly $77.5 million contract to Shirley Construction Co. LLC of Lorton, Virginia, to reconstruct and widen Route 606 between Evergreen Mills Road (Route 621) and Dulles Greenway (Route 267) to reduce area congestion.

The project is a partnership of VDOT, Loudoun County and the Metropolitan Washington Airport Authority (MWAA).

Two-lane Route 606/Loudoun County Parkway and Old Ox Road connects U.S. 50 and Route 28 (Sully Road). Motorists from the west use it to access Ashburn, Sterling and Herndon.

The 5.4-mile project will:

  • Widen Route 606 to four lanes;
  • Have a grass divider median designed to accommodate future widening of the road to six lanes, as provided in Loudoun County’s transportation plan;
  • Include provisions for bicyclists and pedestrians; and
  • Increase the mass of the existing earthen Horsepen Dam, which the road crosses, and include twin bridges and other improvements needed to carry the wider road over the dam. Route 606 is adjacent to Dulles International Airport, and the MWAA owns the dam.


Completion is scheduled for September 2017.

For more project information, see


  1. Prince William County, Interstate 66/U.S. 15 interchange – construct diverging-diamond interchange


The CTB awarded a nearly $36.2 million contract to Lane Construction Corp. of Chantilly, Virginia, to design and build a diverging-diamond interchange (DDI) on U.S. 15 at Interstate 66 to relieve congestion, enhance public safety, operations and capacity, and accommodate forecasted traffic demand in the area.

Diverging-diamond interchanges shift vehicles to the opposite side of the road and eliminate left turns that cross into oncoming traffic, improving safety. Traffic signals at each end of the interchange feature only two phases, reducing “red light” time for motorists and enhancing mobility. VDOT recently completed its first DDI on U.S. 15 where it crosses Interstate 64 at Zion Crossroads in Louisa County and has two more in the works in Roanoke and Blacksburg.

As part of this diverging-diamond interchange, the project will include constructing:

  • Two longer bridges to carry U.S. 15 over I-66 with two crossover intersections;
  • Ramp improvements (including a spur ramp to ease traffic flow from westbound I-66 to northbound U.S. 15 to westbound Heathcote Boulevard);
  • Improvements on U.S. 15 from just north of the railroad tracks to just south of Heathcote Boulevard;
  • Wider intersections on U.S. 15 at Heathcote Boulevard and Route 55, adding turn lanes to both; and
  • A 10-foot-wide shared-use path on the east side of U.S. 15 for pedestrians and bicyclists.


Completion is scheduled for August 2017.

For more project information, see


VDOT recently completed a diverging-diamond interchange on U.S. 15 where it

crosses Interstate 64 at exit 136 (Zion Crossroads) in Louisa County.


  1. Montgomery County, Route 603 – reconstruct road between Interstate 81 and U.S. 11/460


The CTB awarded a nearly $9.8 million contract to Faulconer Construction Co. Inc. of Charlottesville, Virginia, for the Ironto/Elliston connector. The project will reconstruct two miles of Route 603 (North Fork Road) to provide a better link between exit 128 of Interstate 81 at Ironto and U.S. 11/460.

The project will:

  • Bring the existing two-lane roadway up to current design standards by widening the travel lanes from nine feet to 12 feet;
  • Construct five-foot paved shoulders to accommodate bicycles and pedestrians;
  • Improve vertical and horizontal alignment;
  • Replace drainage structures; and
  • Add a right-turn lane from Route 603 onto U.S. 11/460.


Completion is scheduled for May 2016.

Since January 2014, the CTB has awarded 28 major contracts worth approximately $423.1 million:





In advance of each CTB meeting, Virginia Department of Transportation Commissioner Charlie Kilpatrick also approves contracts up to $5 million in value. From the April bid letting, he approved 13 contracts worth approximately $21 million for construction and maintenance on interstates and state primary and secondary roads.

Appointed by the governor, the 17-member CTB establishes the administrative policies for Virginia's transportation system. The CTB allocates highway funding to specific projects, locates routes and provides funding for airports, seaports and public transportation. The board normally meets on the third Wednesday of the month in months when meetings are scheduled.

For more information:


  • Final bid results and projects:


  • CTB meeting, times and locations:



Information in VDOT news releases was accurate at the time the release was published. For the most current information about projects or programs, please visit the project or program Web pages. You may find those by searching by keyword in the search Virginia DOT box above.

Page last modified: Oct. 26, 2017