The Weitz Company, in a joint venture with Turner Construction, will lead construction of Phase 1A of the project to replace the existing terminal at Des Moines International Airport.

The 15-year expansion was paused due to worries that the state highway agency lacked capacity to sell bonds to finance work.

The U.S. regularly spends $500 billion each year on federal contracts, much of it going to small businesses, and it’s easy to see with such large sums of money why fraud is common.