That generated a positive cash flow of some $13 million, after paying for, among other things, $34 million of interest on some $663 million of bonds used to finance the new tunnel tubes and MLK Expressway extension, $5 million of various big-ticket repairs, a $3.5 million insurance bill, and payroll for the more than 200 employees. If the company hadn't postponed interest on a federal credit line, it would have used about $1 million more in cash than it collected, said CEO Doug Wilson.