 on the inbound flow of canal road between the chain bridge and arizona avenue in northwest dc third street tunnels northbound traffic also slow dealing with moderate congestion reported between d street at the u.s capitals exit 9 and new york avenues route 50 at last check you can add an additional 10 minutes to that ride northbound through that section of the quad traffic delays at the third street tunnel southbound dealing with minimal jammed traffic but jammed still nonetheless between d street and the southeast to southwest of freeway