The Metropolitan Washington Airports Authority (Airports Authority) has prepared a Final Supplemental Environmental Assessment (FSEA) to evaluate changes to the Terminal B/C Redevelopment, Secure National Hall and Related Improvements project at Ronald Reagan Washington National Airport (DCA or the Airport).

An Environmental Assessment (EA) was completed and a Finding of No Significant Impact (FONSI) issued in 2016. Since then, the Airports Authority has identified a need for additional employee and crew parking resulting from the project and is now proposing construction of a relocatable parking deck to accommodate this parking need. The proposed parking deck would consist of a modular deck supported by multiple steel columns requiring minimal ground disturbance. An access ramp would be constructed to provide access to the elevated parking areas. The structure would provide approximately 180,000 square feet on one additional level above grade, creating a two-level parking structure in place of surface parking. The elevated parking structure would provide approximately 550 additional parking spaces. Upon completion of construction of the project, the parking deck could become a permanent component of the economy parking lot or based on future demand could be designated for reuse in another location on-Airport. 

In conformance with the provisions of the National Environmental Policy Act, the Authority has prepared a FSEA. After careful consideration of the information contained in the FSEA, the Federal Aviation Administration (FAA) has determined that significant environmental effects will not result from the proposed action. Therefore, the FAA has issued a FONSI.

Beginning September 18, 2020 the FSEA will be available for public review under the Environmental Information section of the Airports Authority website: https://www.mwaa.com/about/environmental-information. Due to public health concerns associated with the COVID19 pandemic, the document will not be made available for physical review at publicly accessible locations. However, the Arlington County Public Library will make the document available on their website: https://library.arlingtonva.us, search DCA Supplemental EA. For interested parties who do not have access to the internet, the Airports Authority will provide a hard copy. Please call Thomas Wasaff (703) 572-0268 to coordinate distribution of a copy.

Comments on the Draft Supplemental EA may be submitted to Thomas Wasaff, Planning Department, Metropolitan Washington Airports Authority, 1 Aviation Circle, Washington, DC 20001-6000, or by e-mail to [email protected]. All comments must be received no later than 5:00 PM, October 19, 2020.