Several lane, shoulder and road closures will be in effect along the Dulles Toll Road, Herndon Parkway, Sunrise Valley Drive and Sunset Hills Road this week.
Drivers are encouraged to pay attention to all signs, barricades and speed limits. Slow vehicles may be entering and exiting highways and surrounding roads.
A complete breakdown of closures, provided by the Metropolitan Washington Airports Authority, is below:
Dulles Toll Road East
When:   Monday, July 23 – Friday, July 27, 10 a.m. to 3:30 p.m. and 9 p.m. to 5 a.m., Saturday, July 28, 10 a.m. to 3:30 p.m. and 8 p.m. to 5 a.m.
What:Â Â Â Â Alternating right and left lane closures of varying lengths
Where:Â Â From mile marker 1.3 to 5.2 (from just west of the Route 28 overpass to the Reston Parkway overpass)
Why:Â Â Â Â Â Civil work
Dulles Toll Road West
When:   Monday, July 23 – Friday, July 27, 9:30 a.m. to 3 p.m. and 8 p.m. to 5 a.m., Saturday, July 28, 10 a.m. to 3:30 p.m. and 8 p.m. to 5 a.m. on Sunday
What:Â Â Â Â Alternating right and left lane closures of varying lengths
Where:Â Â From mile marker 5.7 to 1.5 (between the Route 28 and Reston Parkway overpasses)
Why:Â Â Â Â Â Civil work
Dulles Toll Road West
When:Â Â Â Thursday, July 26, 10 p.m. to 5 a.m.
What:Â Â Â Â Two right lanes closed
Where:Â Â From mile marker 4.5 to 3.5 (from 3/10 mile before the Fairfax County Parkway overpass to the Monroe Street/Van Buren Street overpass)
Why:Â Â Â Â Â Pedestrian bridge construction
Dulles Toll Road West
When:   Friday, July 27 – Saturday, July 28, 10 p.m. to 6 a.m.
What:Â Â Â Â Full closure
Where:Â Â From mile marker 6.2 to 2.4 (Single lane closures begin prior to the Wiehle Avenue overpass. Full closure from the Fairfax County Parkway to Centreville Road; follow detour along the southbound Fairfax County Parkway, westbound Sunrise Valley Drive, and northbound Centreville Road where traffic will re-enter the westbound Dulles Toll Road)
Why:Â Â Â Â Â Pedestrian bridge constructionÂ
Dulles Toll Road West
When:Â Â Â Saturday, July 28, 10 p.m. to 6 a.m.
What:Â Â Â Â Three left lanes close with 20-minute stoppages on right through lane
Where:Â Â From mile marker 6.6 to 4.2 (between the Wiehle Aveue overpass and the Fairfax County Parkway overpass)
Why:Â Â Â Â Â Striping
Sunrise Valley Drive East
When:   Monday, July 23 – Thursday, July 26, 9:30 a.m. to 3:30 p.m.
Friday, July 27, 9:30 a.m. to noon
What:Â Â Â Â Right lane closed
Where:Â Â From Edmund Halley Drive to Colts Neck Road
Why:Â Â Â Â Â Clearing and civil work
Sunset Hills Road EastÂ
When:   Monday, July 23 – Thursday, July 26, 9:30 a.m. to 3:30 p.m.
Friday, July 27, 9:30 a.m. to noon
What:Â Â Â Â Alternating right and left lane closures
Where:  From 500 feet west to 500 feet east of 12011 Sunset Hills Road
Why:Â Â Â Â Â Civil work
Sunset Hills Road WestÂ
When:   Monday, July 23 – Thursday, July 26, 9:30 a.m. to 3:30 p.m.
Friday, July 27, 9:30 a.m. to noon
What:Â Â Â Â Two left lanes closed
Where:  From the entrance to 12011 Sunset Hills Road to 500 feet west of the entrance
Why:Â Â Â Â Â Civil work
Herndon Parkway East
When:   Monday, July 23 – Thursday, July 26, 9:30 a.m. to 3:30 p.m., Friday, July 27, 9:30 a.m. to noon
What:Â Â Â Â Right lane closed
Where:Â From 1000 feet east of Van Buren Street to 800 feet west of Exchange Place
Why:Â Â Â Â Â Equipment mobilization
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