Overnight Beltway, Spring Hill Road Closings

Overnight Closing of Northbound Beltway Lanes, Monday, March 20 - Friday, March 25,

Construction of the aerial bridges that will carry tracks of the Silver Line up and  over the Capital Beltway (I-495) at Route 123 will continue  requiring the closing of three right lanes of northbound I-495 overnights from 11pm-5am.  In addition, the exit ramps from northbound I-495 to both northbound and southbound Route 123 will be closed.

Drivers should expect significant delays each night. Northbound thru traffic will be allowed to use the single open lane. The three lanes will re-open north of the work area.

Crews will begin to shut down some lanes as early as 9:30pm:
9:30 p.m. to 10 p.m. - Crews will begin 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.
10:30 p.m. - 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.

All lanes and exits to Route 123 will be reopened to thru traffic by 5 a.m.These closings will continue nightly Sundays through Fridays for the next five weeks. Various closures of the beltway can be expected throughout the remainder of 2011 as crews construct the bridge over the roadway.
 
Route 7 and Spring Hill Road Closed Overnights March 22 ‐ April 2

Beginning Tuesday night, March 22, all lanes of northbound Spring Hill Road at Route 7 will be closed overnights through April 2 because of installation of a major waterline for the new Silver Line subway.

The lanes will be closed for approximately 150 feet north of the Route 7 intersection. Traffic from Route 7 will be detoured to Westpark Drive, to Greensboro Drive, to access Spring Hill Road. Southbound Spring Hill Road traffic wishing to access Route 7 will use the reverse of that route.

 Eastbound Dulles International Airport Access Highway (DIAAH)  Closed  Overnights March 24-25
 
Beginning at 10pm. on Thursday, March 24, and Friday March 25, crews plan to close the eastbound lanes of the DIAAH to perform utility work between the final toll plaza past Route 7, and the traffic merge over Route 123. Work will be complete by 5am.
 
DIAAH traffic will be directed on to the eastbound Dulles Toll Road by using the existing bus ramp just past the last toll plaza. Drivers will then be able to merge as normal on to the Dulles Connector Road toward I-66.