Traffic Tangles:Overnight Closings of 495, Both Dulles Toll & Access Roads

This week's traffic dramas in McLean and Tysons Corner brought to you by the twin construction of the new Silver subway line and the express toll lanes.

Overnight Closures of Eastbound Dulles International Airport Access Highway (DIAAH)  Resume This Week    

Dulles Corridor Metrorail construction will close the eastbound Dulles International Airport Access Highway (DIAAH) overnights this week. These closures are necessary to complete the last stretches of the aerial guideway (flyover bridge) that crosses both highways. Traffic is not allowed to flow under active construction for safety reasons.
 
Overnight crews will implement a full closure of the eastbound DIAAH from Centreville Road (Route 657) to the merge past the main toll plaza from 9 p.m. to 5 a.m., Tuesday, May 29, through Thursday, May 31, and from 9 p.m. to 6 a.m., on Friday, June 1.
 
Traffic will be detoured from the eastbound DIAAH on to the eastbound Dulles Toll Road (Route 267) at Centreville Road. Motorists will use the Toll Road for the remainder of the route, through the main toll plaza.  IMPORTANT: Tolls will be levied at the main toll plaza.

I-495 south from Exit 44, Georgetown Pike (Route 193) to Oak St. overpass - Three lanes closed Tuesday – Friday nights for overhead sign and paving work. Expect intermittent full road closures of up to 30 minutes after midnight.

I-495 south to Exit 45B, Dulles Connector Rd. (Route 267) east - Ramp closed Tuesday - Friday for overhang removal. Traffic will be directed to continue south to Exit 46B, Chain Bridge Rd. (Route 123) north and follow signs to Dulles Connector Rd. (Route 267) east.

Dulles Connector Rd. (Route 267) west at I-495 - Road closed Tuesday - Saturday nights for bridge painting. Traffic will be directed to take I-495 north to Exit 44, Georgetown Pike (Route 193) west, stay to the left, follow signs to I-495 south and take Exit 45A, Dulles Connector Rd. (Route 267) west.

 Ramp from Eastbound Dulles Toll Road (Route 267) onto Southbound Chain Bridge Road (Route 123) Closed Overnights

The ramp from eastbound Route 267 onto southbound Route 123 will be closed this week to accommodate utility work in the area. This ramp will be closed nightly, from 11 p.m. to 5 a.m., beginning Tuesday, May 29, through Friday, June 1.
 
Left Turns from Eastbound Route 7 onto Spring Hill Road to Close Overnights    
The left turn lanes from eastbound Route 7 onto Spring Hill Road will close overnights this week, due to precast concrete installation at nearby Tysons West Station. These lanes will be closed from 9 p.m. to 5 a.m. Tuesday, May 29, through Thursday, May 31, and from 9 p.m. to 7 a.m., Friday, June 1.
 
 Left Turns from Westbound Route 7 onto Westwood Center Drive to Close Overnights   
Acoustical panel installation will cause the left turn lanes from westbound Route 7 onto Westwood Center Drive to close nightly from 9 p.m. to 5 a.m., Tuesday, May 29, through Thursday, May 31, and from 9 p.m. to 7 a.m., Friday, June 1.
 
Turns from Route 123 onto Tysons Boulevard Closed Overnights Next Week
Turn lanes on to Tysons Boulevard from northbound and southbound Route 123 will be closed overnights Tuesday, May 29, through Friday, June 1, to allow for overhead station work in the area. Generally, these lane closures will begin to be implemented at 11 p.m. and will be lifted around 5 a.m. the following morning.
 
Right Turns from Route 123 South onto International Drive to Close  Overnight Next Week
Concrete work at one of the tunnel ventilation buildings near Route 123 will cause the closure of two right turn lanes from southbound Route 123 onto International Drive. These lanes will be closed from 11 p.m. to 5 a.m. Wednesday, May 30, through Friday, June 1.