Beginning on or about July 22, drivers exiting I-66 West to northbound Route 123 will use a new exit ramp and turn right at a temporary traffic signal.
Drivers traveling on I-66 West to Route 123 (Chain Bridge Road) North toward Oakton will use a new, temporary exit ramp beginning on or about July 22 for approximately three months. The temporary ramp will have two right-turn lanes and a traffic signal to allow drivers to access Route 123 North.
The old ramp from I-66 West to Route 123 North will be demolished to allow construction of a new ramp slightly to the east. This change is necessary to build dedicated Express Lanes ramps and shared-use path at the Route 123 Interchange, as part of the Transform 66 Outside the Beltway Project.
During construction, posted travel speeds along Route 123 through the I-66 interchange are reduced to 35 miles per hour (mph), consistent with posted travel speeds on Route 123 north and south of the I-66 interchange. Drivers traveling north on Route 123 should use caution and be alert for vehicles entering the roadway.
Drivers should expect construction-related detours and traffic pattern changes as work progresses at the Route 123 and I-66 interchange during the next three years of construction. Drivers are reminded to slow down and pay attention to lane markings and roadway signs at all times.
When complete in December 2022, the reconstructed Route 123/I-66 interchange will provide direct access to and from the new Express Lanes for both eastbound and westbound travelers. A new shared-use path through the interchange will connect the new I-66 corridor trail with planned trails in the City of Fairfax.
Learn more about the I-66 Outside the Beltway Project and sign up for project updates and lane closure alerts at Transform66.org.