Skip to main content
Silver Line on Track

Environment

Environment

Dulles Metro’s commitment to the environment is detailed on this page.

The Virginia Department of Rail and Public Transportation and the project partners conducted extensive research to understand the environmental factors and impact of the proposed Dulles Corridor Metrorail Project. The following factors were assessed to identify the potential environmental consequences:

  • Why transportation improvements are needed in the corridor;
  • Why a Metrorail extension was selected to meet those needs;
  • Other alternatives that were considered;
  • The anticipated economic, environmental and social impacts of the extension;
  • The estimated costs of the extension; and
  • Remaining actions required to implement the Metrorail extension.

The Federal Transit Administration (FTA) approved the first Environmental Impact Statement (EIS) in March 2005. Since then, the Dulles Corridor Metrorail Project has advanced to a more detailed level of engineering, which requires additional environmental review to ensure the Project is in continued compliance with the National Environmental Policy Act (NEPA).

The Federal Transit Administration in November 2006 issued its Record of Decision (ROD) on an Environmental Assessment (EA) prepared by the Virginia Department of Rail and Public Transportation regarding design refinements to the Dulles Metrorail Project. This ROD approved the final alignment for the aerial portion of the rail line through Tysons Corner.

Environmental Assessment (February 2006)

The Project has made several design refinements as it has progressed through Preliminary Engineering, such as moving the Metrorail track to the median of Route 7 and shortening a tunnel in Tysons Corner.

The Federal Transit Administration has worked with the Project team to prepare an Environmental Assessment that describes the potential environmental effects that could result from these changes.

Environmental Assessment Public Hearing Report (June 2006)

A public hearing on the PE Design Refinements Environmental Assessment was held on March 28, 2006 at Kilmer Middle School in Vienna, Virginia. The purpose of the hearing was to provide citizens and agencies with an opportunity to comment on the proposed design refinements to the Dulles Corridor Metrorail Project and changes in effects and mitigation measures from what was documented in the project's Final EIS.

This Public Hearing Report formally documents and provides responses to comments received at the hearing and during the public comment period.

Read the Environmental Assessment Public Hearing Report (June 2006)  »

Final Environmental Impact Statement and Section 4(f) Evaluation (December 2004)

Volume I

Volume II – Final EIS Appendices

Volume III – Final EIS Appendices

Volume IV

Volume V

Section 106 Activities Annual Reports

These reports summarize historic preservation activities carried out for each calendar year for the Dulles Corridor Metrorail Project in accordance with the project's executed Section 106 Memorandum of Agreement.

 

 Tyson's Corner Tunnel Engineering and Environmental Study (January, 2007) »