DDOT has a traffic advisory stating that two lanes of the SE-SW Freeway (I-395) will be closed due to demolition work on the 9th Street bridge. From the traffic advisory:
The District of Columbia Department of Transportation (DDOT) is scheduled to demolish a 1000-foot section of the 9th Street, SW Bridge this week. That work will require temporary lane closures on Interstate 395 beginning this evening. DDOT is in the process of completely rehabilitating both the 9th and 10th Street, SW Bridges. It is a year long project that began last November. The demolition work will require closing 2 lanes on southbound I-395 each night this week. The left and center lanes under the 9th Street Bridge will be closed from 8 pm to midnight. In addition, on Thursday, February 5 and Friday February 6, there will be single lane closures on northbound I-395 under the 9th Street Bridge. The far left lane will be closed from 10 am to 3 pm on both days. Variable message signs will be in place to alert motorists and direct them around the lane closures.