Dupont Circle Metro in Washington, D.C. by NDinDC
If you are going to be in the area for inauguration, and (gasp!) you might venture from your home that day, you might want to head over to Metro’s Inauguration website and sign up for Metro’s inauguration updates service. They are planning on sending out messages regarding delays or other problems on Metro.
No idea if the information will be current (or if your phone will be able to receive messages) but it might help.