The Brooklyn-Queens Expressway is getting a massive facelift. The city’s Transportation Department says it’s pumping $1.7 billion into repairing part of the highway. A one-and-a-half mile stretch in Brooklyn, between Atlantic Avenue and Sands Street is slated to get the upgrades. Key parts include the Brooklyn Heights Promenade, a walkway with views of Manhattan, along with the two levels of traffic below — that go to Queens and Staten Island.