Construction of a major transportation hub in Nogales, Arizona is nearly complete. State Route 189 links the Mariposa Port of Entry to Interstate 19. It’s a $134 million project that’s projected to finish under budget and ahead of schedule. The project involves two new flyover ramps that will allow commercial traffic to access I-19 from State Route 189 with more ease. As we discussed with Jaime Chamberlain of the Greater Nogales Santa Cruz County Port Authority, the new ramps and improvements are a game changer for cross-border trade.