Diverging Diamond Interchange Opening Update

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Provided by Virginia Department of Transportation (VDOT)

UPDATE: The DDI will not open this weekend. The opening date for the DDI will be announced once weather conditions needed for final striping can be confirmed.

The interchange will be closed the night before for final lane striping. The DDI’s innovative design shifts vehicles to the opposite side of the road and eliminates left turns that cross oncoming traffic. Two-phase traffic signals at each end of the interchange reduce time spent at red lights and move twice the number of vehicles as a traditional diamond interchange. VDOT recently completed its first two DDIs in Louisa and Roanoke, and has two more in the works in Blacksburg and Stafford.

For more information about the project, including detour information, visit virginiadot.org/projects/northernvirginia/i-66_and_route_15_interchange.asp.

Follow VDOT Northern Virginia on Twitter: @vadotnova

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