 at the 14th Street Bridge, and some ramp closures, of course, as traffic control measures for the fireworks later on downtown. The western half of the mall, including Constitution and Independence Avenue, off limits through the duration of this event. Coming in on the Roosevelt Bridge, you'll be sent down the Potomac Freeway instead of being able to continue in on Constitution. DC 295, southbound near Burroughs Avenue, the crash at last report blocking the left side.