Map of construction project districts

In Design

Route 15/17/29 Interchange, Fauquier County

Construction of grade-separated interchange at Rt. 29 Business and Rt. 880 (Lord Fairfax Dr.)

Project at a Glance

In Design

Estimated $28.34 million (2012-17 Six-Year Improvement Program)

Lengths and Limits
From 1.05 miles south to 1.05 miles north of Route 29 Business



David Cubbage

***HB2 Prioritization Process

This project will be scored under the new prioritization process as outlined in House Bill 2. The funding has been removed from this project in the draft revision of the FY 2015-2020 Six-Year Improvement Program. 

Click here for more information on the prioritization process.


Project Purpose

The purpose of this project is to replace the existing at-grade intersection of Route 15/17/29, Route 29 Business and Route 880 (Lord Fairfax Drive) with a grade-separated interchange to improve safety and capacity.

An interchange was envisioned at this location when the Warrenton Bypass was constructed in the 1980s and was included in the Six-Year Improvement Program in 2012. The project will provide improved traffic flow due to an increase of traffic through this intersection for commuters as well as those traveling to the Fauquier County landfill and Lord Fairfax Community College.

Route 15/17/29 currently carries approximately 43,500 vehicles each day, a number that is projected to increase to 74,000 by 2040.

What Is Proposed?

There are several concepts being considered including a roundabout-style interchange. Each concept includes bike lanes and pedestrian accommodations crossing over Route 15/17/29 on the interchange’s bridge.

As the design concepts are finalized, involvement from the public will be incorporated in the ultimate design of the project. The link below contains several initial concepts currently being considered.

Project Costs

The latest estimated project costs from the 2012-17 Six-Year Improvement Program:

Total Cost: $28,341,148
Design and Engineering: $1,910,040
Right of Way Acquisition and Utility Relocation: $100,000
Construction: $26,241,148

These costs are preliminary planning estimates and subject to change as the project develops. Cost estimates will be updated as the project progresses. 

This project will be financed using federal funds.

Resources & Information

Warrenton Interchange Concept Study Adobe Acrobat PDF (13 MB)
    This study contains several initial concepts currently being considered.

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Page last modified: Feb. 10, 2015