Long Bridge Project
The Long Bridge is a CSXT owned two-track, century-old bridge that spans the Potomac River in Washington, DC. The Long Bridge Project will increase rail traffic capacity, creating a four-track corridor, and constructing approximately 1.8 miles of improvements including seven rail bridges and pedestrian bridges over land and the Potomac River and related railroad infrastructure between Arlington, VA, and Washington, DC.
About the Long Bridge Project
The Long Bridge Project will construct a new, two-track railroad bridge next to the existing Long Bridge, creating a four-track corridor. A new bike-pedestrian bridge also will be constructed as part of the mitigation to National Park Service (NPS) parkland and will span the Potomac River and George Washington Memorial Parkway, connecting Long Bridge Park directly to East and West Potomac Parks.
Freight and passenger rail operators within the project corridor include Amtrak, Virginia Railway Express (VRE) and CSXT. Annually, up to 1.3 million Amtrak passengers and 4.5 million VRE commuters traverse the current Long Bridge, which operates at 98% capacity during peak hours. The project’s purpose is to create greater railroad capacity between Virginia and the District of Columbia while alleviating the rail congestion caused by the existing two-track Long Bridge.
1.8
Miles of Rail
7
New Bridges
6.5K
Feet of Rail Bridges
20K
Feet of Feet
Project Status: Construction
- Increased rail capacity that enables more frequent passenger rail service with better on-time reliability.
- Improved bicycle and pedestrian connectivity between
- Northern Virginia and the District of Columbia with a new bicycle-pedestrian bridge that is wider, brighter, and safer than other options.
- Billions of dollars invested in the regional economy.
- Infrastructure improvements that increase safety and security along the project corridor
Long Bridge North Total Budget: $1,079.8 B
Long Bridge South Total Budget: $1,199.2 B
Project Details
Get news and updates about the Long Bridge Project, find out about upcoming events and public meetings, and download materials.
Community Advisory Group Meeting #1 (March 5, 2025)
Spring 2023 Public Meeting
- Project Fact Sheet
- Combined Final Environmental Impact Statement/Record of Decision and Final Section 4(f) Evaluation – 3MB (PDF)
- FEIS Basis of Design Report – 43MB (PDF)
- FEIS Operator Comments – 190KB (PDF)
- FEIS Operator Signoff Plans – 18MB (PDF)
- Final Environmental Impact Statement/Record of Decision – 3MB (PDF)
- Frequently Asked Questions (FAQs)
- Spring 2023 Public Meeting
The Long Bridge Project will be delivered in two construction packages: the North Package, a Progressive Design-Build procurement that includes infrastructure improvements in Washington, DC, and the South Package, a Design-Build procurement that will construct the George Washington Parkway/Potomac River rail bridge and Potomac River bicycle-pedestrian bridge.
The North Package is one of the first significant construction contracts executed for the Transforming Rail in Virginia initiative. The South Package RFP will be released in February 2024.
North Package
The Progressive Design-Build contractor is Skanska/Flatiron Joint Venture (JV).
JMT and HNTB are Joint Venture partners.
Major Subcontractors include:
Explore the project
A rendering of the Long Bridge Project section over the Potomac River highlighting the new rail bridge and new bicycle-pedestrian…
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