They’ll remain open until December 31.

On Saturday, Chocolate City Beer will roll out “Mister Mayor,” an oak-aged imperial stout brewed with marionberries. Wonder who it’s named after?

Given the fact that the District had four active breweries prior to prohibition (one where the Kennedy Center currently stands), the current state of beer affairs in our fair city could be seen as a glass that’s half-empty. But with the opening of the city’s first new breweries in fifty years coming in 2011, we’d rather look at it as a glass that’s half-full — and likely to keep filling in years to come.

Our city is getting invaded — and it is going to be a welcome occupation of our pint glasses and beer coasters. 2011 is the year of Washington D.C. beer.