Map of construction project districts


I-495 Southside Express Lanes Study

Fairfax County and City of Alexandria, Virginia to Prince George's County, Maryland

Area Maps

Project at a Glance
Begin Date
January 2022

Est Completion Date
Final Approvals Expected: Fall 2023/Winter 2024


$6.8 million (Study)

Lengths and Limits
Springfield Interchange to MD 210 (11 mi)

Alexandria and Fairfax

Northern Virginia

Email the Study Team

Nick Nies, AICP
Project Manager
Michelle T. Holland

Learn more about the Study. Attend an Upcoming Public Information Meeting. 

VDOT is hosting public information meetings to provide information about the I-495 Southside Express Lanes study, and to seek public input.

The public information meeting Website and Materials are now available for review.

View Materials

Virtual Public Information Meeting
Wednesday, May 18, 2022
6:30 – 8:30 p.m. (presentation at 7 p.m.)

Click here to view a recording of the virtual meeting.

In-Person Meetings

Each of the following in-person meetings will be held from 6:30-8:30 p.m. (presentation at 7 p.m.), attend one near you:

Read more in the ad.

View our April study newsletter.

View our recent press release. 

About the Study

VDOT, in cooperation with the Federal Highway Administration (FHWA) and other federal, state and local agencies in Virginia and Maryland, is conducting an environmental study to potentially extend the express lanes system on the southern section of I-95/I-495 (Capital Beltway), by 11 miles from the Springfield interchange (I-95/I-395/I-495) in Fairfax County, Virginia, across the Woodrow Wilson Memorial Bridge, to the MD 210 interchange in Prince George’s County, Maryland. This location was identified in the Commonwealth Transportation Board’s adopted I-95 Corridor Improvement Plan as an area for additional study.

The 495 Southside Express Lanes study is included in VDOT’s current Six-Year Improvement Program (SYIP), as well as in the National Capital Region's Visualize 2045 Constrained Long Range Plan (CLRP) as of June 2021. The study will evaluate a one-lane express lanes alternative, a two-lane express lanes alternative, a no build alternative, and be informed by agency and public input.

The Woodrow Wilson Memorial Bridge, the southernmost connector of Virginia and Maryland on I-495, fully opened to traffic in May 2008. The design of the bridge included additional space for future transportation needs, and was designed to accommodate future transit across the bridge.

This study is being coordinated with surrounding stakeholders including localities and the Maryland Department of Transportation’s State Highway Administration. The study also will be informed by a Transit and Transportation Demand Management Study to be initiated by the Virginia Department of Rail and Public Transportation (DRPT) and coordinated with the Maryland Transit Administration.

Begin Study - January 2022
Begin Data Collection and Analysis and Initial Coordination with Partnering and Local Agencies - January 2022
Begin Public and Stakeholder Outreach - Spring 2022
Virtual Public Information Meeting - May 18, 2022
In-Person Public Information Meetings - May 19, 23 & 25, 2022
Virtual and In-Person Public Information Meetings Comment Deadline - June 21, 2022 (The comment period was extended to allow the public more time to review study materials and provide input.)
Public Information Meeting - Fall 2022/Winter 2023
Public Hearing for Environmental Assessment - Spring/Summer 2023
Complete Environmental Assessment/Approvals Expected - Fall 2023/Winter 2024

Goals and Objectives

  • Provide Express Lane system continuity 
  • Provide additional travel choices
  • Reduce congestion 
  • Improve travel reliability
  • Improve safety   
  • Provide consistency with local and regional plans

Project Numbers
UPC: 117217

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Page last modified: May 20, 2022