Maryland Department of Transportation, Maryland Transit Administration
Corridor Cities Transitway
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Environmental Studies

Corridor Cities Transitway Project
Environmental Assessment
Montgomery County, Maryland

The Maryland Department of Transportation Maryland Transit Administration (MDOT MTA), in cooperation with the Federal Transit Administration (FTA), is hereby notifying the public of the availability of the Environmental Assessment (EA) for the Corridor Cities Transitway (CCT) Project for review and comment. The CCT Project consists of a nine-mile Bus Rapid Transit (BRT) from Metropolitan Grove Maryland Area Regional Commuter (MARC) Station to Shady Grove Metro Station. The CCT Project would include 13 stations and would operate at street level, mostly separated from existing traffic, which would allow for fast and reliable operation of service. The majority of the proposed alignment is located directly adjacent to, or on existing transportation right-of-way, that MDOT MTA has acquired, or will acquire, for the Project.

The EA has been prepared in accordance with all applicable regulations, including the Council on Environmental Quality regulations at 40 CFR 1506.6, FTA regulations under 23 CFR 771.119(d), the National Environmental Policy Act of 1969, Section 106 of the National Historic Preservation Act of 1966, Section 4(f) of the U.S. Department of Transportation Act of 1966 (49 USC §303), and Executive Order 12898 on Environmental Justice. MDOT MTA and the FTA are hereby notifying the public of the availability of the Environmental Assessment for the CCT Project.

Funding for CCT final design and right-of-way acquisition has been deferred until FY 2023. Therefore, the MDOT MTA will not be pursuing a Finding of No Significant Impact (FONSI) from the FTA on the project at this time.


Digital copies of the document are available for download below:

Due to digital size limitations, Appendix F: Technical Reports are available only by individual request. Please contact the Project Team,, if you would like a download link to Appendix F. The Technical Reports include the following:

  • Air Quality Technical Report
  • Alternatives Technical Report
  • Energy Technical Memorandum
  • Environmental Justice Technical Report
  • Hazardous Materials Phase 1 Environmental Site Assessment
  • Indirect and Cumulative Effects Technical Report
  • Natural Resources Technical Report
  • Noise and Vibration Technical Report
  • Phase 1 Archeological Survey Technical Report
  • Purpose and Need Technical Memorandum
  • Socioeconomic Technical Report
  • Traffic Technical Report
  • Visual Analysis Technical Memorandum

Hard copies are available for review at the following locations:

  1. Gaithersburg Library: 18330 Montgomery Village Ave. Gaithersburg, MD 20879
  2. Germantown Library: 19840 Century Blvd. Germantown, MD 20874
  3. Montgomery County Council Office Building: 100 Maryland Avenue Rockville, MD 20850
  4. Maryland Department of Transportation Maryland Transit Administration: 6 St. Paul Street, Suite 902, Baltimore, MD 21202
  5. City of Rockville: 111 Maryland Avenue, Rockville, MD 20850
  6. City of Gaithersburg: 31 South Summit Avenue, Gaithersburg, MD 20877

Interested parties may also obtain a copy of the document by contacting the Project Team at

The comment period for the CCT EA has ended and we thank you for your input. If you have any questions, please email the Project Team at

Previous Documents

The CCT project has a long history of environmental documentation dating back to 2002 when the transitway was part of a multi-modal study looking at transit and highway improvements in the I-270 Corridor. In May 2002, the Federal Highway Administration (FHWA) and Federal Transit Administration (FTA) published a Draft Environmental Impact Statement (DEIS)for the I-270/US 15 Multi-Modal Corridor Study for public review and comment. The DEIS evaluated the impacts of 35 miles of highway improvements along the I-270/US 50 corridor and a 15.3-mile long CCT.

In May 2009, the FHWA and FTA circulated an Alternatives Analysis/Environmental Assessmentthat analyzed new highway alternatives and reviewed the previously studied CCT alternatives. In November 2010, the MTA completed a Supplemental EAto provide more detailed environmental and engineering analysis for new CCT alternatives to better serve the proposed developments of Crown Farm, Life Sciences and Kentlands.

In December 2011, FHWA and FTA jointly concurred that the CCT has independent utility from the highway components of the I-270/US 15 Multi-Modal Corridor Study and the CCT could proceed with NEPA compliance separate from the highway alternatives in the Multi-Modal Corridor Study.