Progress Report: Dulles Toll Road’s Metro-Related Land Bridge

Rendering of Dulles Toll Road Land Bridge over Town Center Parkway/Credit: Dulles Corridor Metrorail Project

The flurry of construction you see in the median of the Dulles Toll Road near Reston Parkway isn’t all the Reston Town Center Metro Station.

Designers of the Silver Line’s Phase 2 are planning way ahead — perhaps decades from now — when a possible new road will take vehicle traffic under rather than over the toll road.

Crews have started construction of a so­-called “land bridge structure” in the median. The bridge will enable the future connecter — a four-lane highway linking Town Center Parkway to Sunrise Valley Drive — to be built without disrupting the toll road, said Dulles Corridor Metrorail Project spokeswoman Marcia McAllister.

The structure is being built in the median of the toll road near mile marker 4.8, approximately 500 feet west of the future Reston Town Center Station. That station is slated to open in early 2020.

The bridge was requested by Fairfax County as an element of the Board of Supervisors’ Six Year Transportation Priorities for FY2015 to FY2020. The county pledged $8.7 million for the $157 million underpass project in late 2014.

Building the bridge­-like structure in advance would minimize any impact to Silver Line Phase 2 service during future construction of the planned roadway, McAllister said.

Graphic: Rendering of land bridge on Dulles Toll Road/Credit: Dulles Corridor Metrorail Project

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