Drivers heading to McLean from the Capital Beltway will hit detours through Saturday, Oct. 3, as paving crews close ramps at the I-495 and Route 123 interchange in Tysons.
The Virginia Department of Transportation (VDOT) began the nightly closures Monday, Sept. 28, and will continue them through Oct. 3, weather permitting, according to a VDOT press release. Each closure runs from 11 p.m. to 4 a.m. One ramp shuts down per night.
The interchange sits where Chain Bridge Road meets the Beltway, one of the busiest junctions for McLean and Great Falls commuters.
Closure schedule
Northbound I-495 ramp to northbound Route 123 (Exit 46B toward McLean):
- 11 p.m. Monday, Sept. 28, to 4 a.m. Tuesday, Sept. 29
- 11 p.m. Thursday, Oct. 1, to 4 a.m. Friday, Oct. 2
Northbound I-495 ramp to southbound Route 123 (Exit 46A toward Tysons):
- 11 p.m. Tuesday, Sept. 29, to 4 a.m. Wednesday, Sept. 30
- 11 p.m. Friday, Oct. 2, to 4 a.m. Saturday, Oct. 3
Southbound I-495 ramp to northbound Route 123 (Exit 46B toward McLean):
- 11 p.m. Wednesday, Sept. 30, to 4 a.m. Thursday, Oct. 1
- 11 p.m. Saturday, Oct. 3, to 4 a.m. Sunday, Oct. 4
Detours
When the Exit 46B ramp to McLean from northbound I-495 is closed, VDOT will route drivers onto the Exit 46A ramp to southbound Route 123, then south on Route 123, back onto southbound I-495 and around to the northbound Route 123 ramp.
When the Exit 46A ramp to Tysons from northbound I-495 is closed, the detour runs via the Exit 44 ramp to Route 193/Georgetown Pike, west on Georgetown Pike, onto southbound I-495 and then to the southbound Route 123 ramp.
When the Exit 46B ramp to McLean from southbound I-495 is closed, drivers will be directed to Route 7/Leesburg Pike via Exits 47A-B, then west on Route 7 and onto northbound Route 123.
The VDOT press release did not identify the paving contractor or the project's cost.
Drivers can check real-time closure and detour information at 511.vdot.virginia.gov, through the free 511Virginia mobile app or by calling 511 in Virginia.
