Police said the 31-year-old man was hit with the debris at 131-07 40th Road at around 7:42 a.m.
According to the Fire Department, the worker suffered bodily trauma but was conscious and alert. Paramedics took him to New York/Presbyterian Hospital for treatment of his injuries; he was listed in stable condition.
The man was likely working on the site of two condominiums towers being built on the site as part of a multi-phase luxury development located above The Shops at SkyView Center, a 700,000-square-foot retail mall. Three residential towers will ultimately be built and the first has already been completed, with all of its units entirely sold out.