Fresh from DDOT:

The District Department of Transportation (DDOT) is advising motorists that the 2600 block of Pennsylvania Avenue, NW is closed to eastbound traffic because of a sinkhole. A square hole, approximately 4 feet by 4 feet, and 5 feet deep, has developed in the roadway near the bridge over Rock Creek (see attached photo).

DDOT crews are on the scene to make repairs. They are also working with the Metropolitan Police Department (MPD) to try and reopen a lane for eastbound traffic, but delays are likely and motorists are advised to take alternate routes if possible

Any readers got pics?

UPDATE, 5:35 P.M.: WUSA-TV has a photo.