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Recently Completed

I-395 HOV Ramp and Auxiliary Lane

Ramp to Seminary Road in the City of Alexandria

Project Photos

Project at a Glance

Begin Date
March 2014

Est Completion Date
Auxiliary Lane:
Opened Feb. 2015

HOV Ramp:
Opened Jan. 2016

Pedestrian Bridge:
Opened May 2016

Final Completion:
Jan. 2017

$76 million

Archer Western Construction LLC


Northern Virginia

Arif Rahman, P.E.

About the Project

I-395 HOV Ramp

This project constructed a reversible High Occupancy Vehicle/Transit ramp on I-395 at Seminary Road (Route 420). The ramp provides improved access for HOV and transit users working at or near the Mark Center, a Department of Defense facility at Seminary Road and I-395 that holds 6,400 employees. 

The ramp reverses directions according to the same reversal schedule as the HOV lanes. The ramp is only open to vehicles with three or more occupants and buses; vehicles that are not HOV-3+ are not allowed to use the ramp. The ramp links the I-395 HOV lanes to Seminary Road on the top level of the Seminary Road interchange, where there is a new traffic signal, turn lanes, and a dedicated left-turn lane for motorists heading to the Mark Center.

The ramp opened to traffic in Jan. 2016.

I-395 North Auxiliary Lane

The project included one additional northbound auxiliary lane on I-395 connecting the northbound on-ramp at Duke Street (Route 236) to the northbound off-ramp at Seminary Road.

This 0.8-mile auxiliary lane aims to ease congestion where motorists enter and exit I-395. It also provides easier access to the Mark Center.

The auxiliary lane opened to traffic in Feb. 2015.

Other elements of this project include a new Seminary Road bridge over I-395, which opened in Jan. 2016, and a new pedestrian bridge over I-395, which opened in May 2016. The overall project was completed in Jan. 2017.

Noise Barrier Walls

An in-depth noise study found that noise walls would benefit multiple areas along this project corridor. VDOT’s policy on potential sound walls involves significant public input. Residents of the benefited areas are eligible to vote on the decision to place sound walls. For more information on VDOT’s sound abatement policies, use the below links to VDOT’s noise abatement resources and info on the voting procedure for proposed noise barrier walls. 

More info:

About Noise Walls | Noise Abatement Voting Procedures | Q & A - Noise Walls
Noise Impact Analysis Technical Report (November 2013)
Noise Wall Renderings


Project update presentation (Oct. 2015)
Construction update (April 2015)
Landscaping Plans: Master Plan - Planting Detail | West Section | Plant List | Typical Sections 
Seminary pedestrian bridge meeting presentation (Nov. 2014)
Construction update (July 2014)
Noise Study Addendum (April 2014)
Noise Wall Maps with Votes
Parkside Condominium Association Meeting (March 2014)
Fact sheet on construction beginning (March 2014)
Public information meeting presentation and transcript (Oct. 2013) |
Aerial overview (Oct. 2013): 1 | 2 | 3
Interstate 95 Express Lanes: Fundamentals of Traffic Noise presentation|
Public hearing brochure (Jan. 2012) and Response to comments
Environmental Assessment

UPCs: 102437 (Auxiliary Lane), 96261 (HOV Ramp)
State Project #s: 0395-100-736 (Auxiliary Lane), 0395-100-722 (HOV Ramp)

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Page last modified: Feb. 3, 2017