From new data centers and warehouses in Rochelle to religious and health-care buildings in Rockford, the area’s large construction companies enjoyed a construction boom in April, May and June. Only four building permits with values of more than $1 million were filed in the first three months of the year, according to a Register Star database In the second quarter? Twenty-four . While some of the permits were continuations of ongoing projects, such as the MetroCentre renovation and the Allstate Insurance data center in Rochelle, the vast majority were entirely new. For the area’s large contractors, the flood of work is long overdue. After $194.9 million worth of local work in 2006, the area’s 15 largest construction firms saw orders tumble more than 20 percent in 2007. Construction volume was off an additional 6.8 percent in the first quarter. For the rest of this story, visit BusinessRockford.com ...