A $17.2 million overhaul of the Boundary Channel Drive interchange along I-395 is in the works.
Plans call for overhauling the existing, difficult-to-navigate interchange near the Pentagon and Crystal City with two rotaries, to be installed on either side of I-395.
The 150 and 160-foot wide rotaries aim to merge traffic from Boundary Channel Drive and the Pentagon Access Road on the left, and the Boundary Channel and Long Bridge Drive on the right. The project would remove I-395’s two southbound loop ramp, and add a new multi-use trail, shared by cyclists and pedestrians, connecting the Mt. Vernon Trail to Long Bridge Park.
The project will be managed by the Virginia Department of Transportation (VDOT) and is expected to cost around $17 million.
The Arlington County Board will review an agreement for the project during its upcoming meeting this Saturday. As of Tuesday, the project was featured on the Board’s consent agenda, a place usually reserved for items expected to pass without debate.
The Interchange serves the Pentagon (five million square foot office building with 25,000 employees), Pentagon City (12.7 million square feet of office, 2.3 million square feet of retail and over 13,000 residential units), Crystal City, Long Bridge Park plus its future park expansion and the future Aquatics & Fitness Center, which is expected to draw regional visitors from Maryland and the District of Columbia, as well as from the areas south and west of Arlington in Virginia. The existing interchange design is dated and will need to be redesigned to better serve the transportation needs of the existing and future land uses in the area.
The county held public meetings to showcase the designs in 2015, during which staff noted feedback “varied greatly.” The points staff said residents agreed on included:
- There needs to be fewer ramps onto I-395
- Rotary islands need to be designed to not allow cars to speed
- Pedestrian crossings need to be designed to reduce conflicts with cars and bicycles
County staff also noted that plan for the trail meets goals set by the newly-upgraded bike element of the Arlington County Master Transportation Plan to make it easier for cyclists and pedestrians to use the Mt. Vernon Trail.
“The Mount Vernon Trail connection is an extremely critical part of the project and will create a much-needed link between Long Bridge Park and the trail,” the staff report said.
Image 3 via Google Maps
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