The Virginia Avenue Tunnel is a railroad tunnel in Washington, D.C. owned by CSX Transportation. It is part of the CSX RF&P Subdivision and serves freight trains along the eastern seaboard routes, providing a bypass around Union Station. The double-tracked tunnel is located under Virginia Avenue SE, from 15th and M Streets SE to 2nd St. and Virginia Avenue SE. The eastern portal connects to the Anacostia Railroad Bridge and the CSX Capital Subdivision. At the western end the RF&P Sub runs to the Long Bridge into Virginia.