No doubt there will be more official announcements coming from DDOT, but in my quest to get you information lickety-split, I point you to this post on the MPD 1D message board: "The Frederick Douglass Bridge main span and approach ramps will undergo significant repair work during this year, effective this month. Repair work consists of steel repairs, deck joint replacement, concrete repairs and painting of bridge thus these repairs necessitate the closure of the bridge which will effect the ingress and egress of DC residents, DC govt employees. Traffic will be advised by a Changeable Message Sign Board daily that drivers should use the 11th St. Bridge as a major detour route during times the Douglas bridge is closed. The following schedule has been tentatively put out -- please share with coworkers, neighbors." It shows scheduled weekend closures (from Fridays at 10 pm to Mondays at 4 am) on various dates starting Jan. 26, and also mentions that the entire span will be closed from after July 4 through the end of August--I believe (but do not know with 100% certainty) this will be the dismantling of the viaduct so that the bridge exit onto South Capitol Street reaches street level at Potomac Avenue rather than O Street. As I said, I know more will be coming from DDOT, and I'll post it as soon as I have it. I'll also put all the scheduled closures on my Calendar of Events once they come from DDOT.