Iriving Square Park, which is bordered by Halsey, Wilson, Knickerbocker and Weirfield in Bushwick, has been getting a full makeover courtesy of the Parks Department. In March 2006, the city embarked upon the first stage of a capital project, a $1.57 million renovation of the northeast portion of the park. That was completed back in January. Now, judging from this photo, another stage is well underway. The impetus for the overhaul could have something to do with the fact that the park received a letter grade of “F” in a 2006 review by New Yorkers for Parks. GMAP