A site for the arena in downtown Newark was selected, bordered by Edison Place on the north, Lafayette Street on the south, Mulberry Street on the east, and Broad Street on the west. The site was the location of the never-completed Renaissance Mall and, previously, the tracks and train shed of the Central Railroad of New Jersey's Broad/Lafayette Street terminal whose building still stands nearby. The arena was designed by HOK Sport, with the exterior designed by Morris Adjmi Architects. Initial designs were released in early 2005 and referred to the arena as "Newark Arena". Groundbreaking began on October 3, 2005, and a workforce of 2,725 union workers was employed to construct the arena. Financial issues, though, threatened to halt the deal. On January 24, 2006, the Devils averted having the project canceled by submitting a guarantee in writing that the team would contribute $100 million to the arena, one day before their deadline.