What: A series of explosions will kick out about 450 of the old convention center's concrete and steel columns, causing the roof to fall 50 feet to the surface and most of the walls to come down on top of it.
When: 7:30 a.m. tomorrow.
Where: 900 Ninth St. NW.
Traffic: District police will restrict pedestrian and vehicle traffic up to two blocks away. Traffic will be restricted on Massachusetts Avenue and on Seventh Street starting at 7:15 a.m., and cars on other surrounding streets will be restricted from about 5:30 to 9:30 a.m., and possibly longer.
For detailed street closings, see a graphic of the demolition closings and schedule.