A portion of I-495 South, also known as the Capital Beltway Outer Loop, will be fully closed during overnight hours starting tomorrow (Oct. 8) so construction crews can continue installing overhead bridge beams at the I-66 interchange in Dunn Loring.
The closure will extend to the I-66 West ramp to I-495 South, the 495 South Express Lanes, and several 495 Express Lanes ramps.
“Drivers traveling on I-66 and I-495 during this time should expect delays and consider using alternate routes,” the Virginia Department of Transportation said in a news release. “Message boards across the region will direct drivers on I-95 and I-495 to use alternate routes those nights.”
Here are more details on the impending closures from VDOT:
I-495 South approaching I-66
- Two lanes will be closed Friday (Oct. 8) from 10 p.m.-6 a.m., Saturday (Oct. 9) from 10 p.m.-7 a.m., and Sunday (Oct. 10) from 9 p.m.-5:30 a.m.
- All lanes of I-495 South will be closed Friday and Saturday from midnight to 5 a.m., and Sunday from 11:30 p.m. to 4:30 a.m.
Ramp from I-66 West to I-495 South
- The ramp will be closed Friday and Saturday nights from 10 p.m.-5 a.m., and Sunday night from 11:30 p.m.-4:30 a.m.
- 495 Express Lanes and ramps will be closed from 10 p.m.-5 a.m. every night.
Traffic will be detoured onto I-66 West to the Nutley Street exit in Vienna before looping onto I-66 East back toward I-495 South.
VDOT notes that the construction work depends on the weather and could be rescheduled if there are inclement conditions.
This will be the third consecutive weekend of construction-related closures on I-495 after recent lane closures on the Beltway at the Dulles Toll Road interchange in Tysons for joint bridge work there.
This weekend’s beam installation is part of work on a new flyover ramp that will connect I-495 North to I-66 West, one of several changes coming to the interchange courtesy of the Transform 66 Outside the Beltway project to add toll lanes on I-66 from Dunn Loring to Gainesville.
According to VDOT, the reconfigured interchange will provide access to and from the 495 Express Lanes to the new I-66 Express Lanes, enable drivers to switch between express and general-purpose lanes when changing roadways, and replace existing noise walls while adding new ones on I-66 near Idylwood Park.
Work has been ongoing throughout the I-66 corridor since 2018. Just this past weekend, two new ramps from Nutley Street to I-66 West opened to traffic in Vienna. The express lanes are expected to open to traffic in December 2022.
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