3 Lanes of Beltway Closing Tonight in McLean, Expect Delays

 Three northbound lanes of the Beltway at Route 123 in Tysons Corner close tonight as construction begins on the aerial bridges that will carry tracks for Silver Line up and over the Capital Beltway.

Drivers should expect significant delays from the closings that will continue for five weeks. All lanes and exits to Route 123 will reopen to thru traffic by 5am.
       
In addition to the closings from 11pm-5am, the exit ramps from northbound I-495 to both northbound and southbound Route 123 will be closed. The lanes will begin to shut down as early as 9:30 pm.

Here is the schedule:
9:30-10pm - Crews will begin tapering for the closing of the right lane on I-495 North about a half mile before the Route 7 exit. The exit ramps at Route 7 will not be affected by rail project construction closings.

10:30pm - Crews will begin to close the second right lane near the Route 7 bridge, and the third lane will close prior to the Route 123 interchange. The ramps to/from Route 123 also will close at this time (see below for detour information).

These closings also are scheduled to take place Thursday and Friday nights, Feb. 18, and then will continue nightly Sundays through Fridays for the next five weeks.     
 
Northbound thru traffic will be allowed to use the single open lane.  The three lanes will re-open north of the work area.      
 
The closings of the exit ramps to northbound and southbound Route 123 will result in the following detour: To access Route 123 from the beltway, drivers will be directed to detour by continuing on the beltway north, exiting Georgetown Pike (Route 193), turning around at Georgetown Pike, then entering the southbound beltway. Drivers will be able to exit to both directions of Route 123 from the southbound beltway.
 
Crews will be using a large horizontal crane (also known as a truss) to build the bridges over I-495. Traffic cannot travel under active bridge construction for safety reasons.