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Studies

Town Center Parkway Underpass Study

Studying the extension of Town Center Parkway under the Dulles Toll Road
Project at a Glance
Begin Date
May 2019

Est Completion Date
July 2021

Phase
Study

Cost
$1 million (Study)

Lengths and Limits
Sunset Hills Rd to
Sunrise Valley Dr

Locality
Fairfax

Contact
Dan Reinhard, P.E.
Location & Design
703-259-2599
Andrew Beacher, P.E.
Preliminary Engineering
703-259-2239

Please note: The final report is now available.

Appendices A-B: Existing Conditions and Utilities Scroll and Concept Level Geotechnical Report
Appendix C: Preliminary Drainage Report
Appendix D: Traffic Study and Traffic Data, Travel Forecast Memo, Sunrise Valley Drive Signal Justification Report and Future Road Signal Justification Report, and Synchro Reports
Appendices E-I: Basis of Design Memorandum, Proposed Roadway Typical Sections, Meeting Minutes and Emails, Typical Sections Looking North and West, and Town Center Parkway Underpass Scroll Plan
Appendices J-M: Horizontal Sight Distance, Stormwater Management Feasibility Study, Autoturn Movements, and Town Center Parkway Profile and Sunset Hills Road Profile
Appendix N: Maintenance of Traffic Scroll Phase 1, Phase 2 and Phase 3
Appendices O-S: Schedule Report, Bridge Plans, Traffic Signal Plans, Construction Cost Estimate, and Public Involvement Comments, Questions and Responses

About the Study

This study assessed an extension of Town Center Parkway below the Dulles Toll Road (Route 267), the Dulles International Airport Access Highway and the Metrorail Silver Line aimed at reducing congestion on adjacent roadways and improving accessibility and connectivity to Reston Town Center for drivers, bicyclists and pedestrians.

The study team analyzed the extension, about a half-mile, from Town Center Parkway's current southern terminus at Sunset Hills Road to Sunrise Valley Drive via an underpass, with the new road aligning west of the CoreSite building on Sunrise Valley Drive.

The final report was issued in July 2021.

This study does not set construction dates for any improvements, but develops proposed improvements that Fairfax County can pursue for funding.

Schedule
Begin Study - May 2019
Virtual Public Information Meeting - April 2021
Study Completion - July 2021

Project Numbers
State: 7414-029-422, P101, P102
UPC: 114452
Federal: STP-029-9 (016)

Resources

Final Report - July 2021

Appendices A-B: Existing Conditions and Utilities Scroll and Concept Level Geotechnical Report
Appendix C: Preliminary Drainage Report
Appendix D: Traffic Study and Traffic DataTravel Forecast MemoSunrise Valley Drive Signal Justification Report and Future Road Signal Justification Report, and Synchro Reports
Appendices E-I: Basis of Design Memorandum, Proposed Roadway Typical Sections, Meeting Minutes and Emails, Typical Sections Looking North and West, and Town Center Parkway Underpass Scroll Plan
Appendices J-M: Horizontal Sight Distance, Stormwater Management Feasibility Study, Autoturn Movements, and Town Center Parkway Profile and Sunset Hills Road Profile
Appendix N: Maintenance of Traffic Scroll Phase 1Phase 2 and Phase 3
Appendices O-S: Schedule Report, Bridge Plans, Traffic Signal Plans, Construction Cost Estimate, and Public Involvement Comments, Questions and Responses

Virtual Public Information Meeting Video, PresentationComment SheetNews ReleaseAd and Meeting Details - April 2021

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Page last modified: Nov. 5, 2021