The Metropolitan Washington Airports Authority said at least two toll lanes will be closed at the main toll plaza for several consecutive weeks. Beyond Route 7, E-ZPass users should stay left and cash customers should stay right to access the full service toll booths.
On Monday morning, eastbound traffic was significantly slower than usual from Herndon and Reston toward the work zone where the far left E-ZPass Only lane and at least one center toll lane remained blocked. MWAA urged morning commuters headed for the Beltway to make temporal adjustments by arriving at the main toll plaza before 8 a.m. or after 10 a.m. to avoid the heaviest traffic.
The installation of the new toll collection system caused daily westbound delays for several weeks earlier in the summer. The work at the westbound toll plaza was largely completed.
MWAA said it is working to provide a minimally disruptive driving experience and a safe construction zone for workers.
Further adjustments to the lane closures at the eastbound toll plaza are likely later this summer.
The morning backups on the Dulles Toll Road could lead to overflow traffic on Route 7 at times as well.