After the sale of more than 3 million square feet of industrial space in New Jersey — part of a three-state, $700 million deal announced earlier this fall — Bridge Development Partners is well on its way toward refilling its pipeline in the Garden State. Jeff Milanaik, regional partner for Bridge, said the firm is under contract for a series of sites in northern and central New Jersey that could pave the way for another 6 million square feet of development activity.