The city and taggers are engaged in turf war over the MLK Bridge:
The new tags, spelling SIGH in orange and gold letters about 6 feet high, are painted right above two of the bridge’s massive supports, one facing north and one facing south. The bridge, officially called the Martin Luther King Bridge, rises high above I-95 downtown, between the Seventh Street and Broad Street exits. […] The bridge is one of the city’s highest-profile graffiti showcases. On average, 60,000 vehicles drive under it northbound each day, and 65,000 pass under it southbound, according to the Virginia Department of Transportation’s 2009 traffic counts.