Interstate 75 serves as a freight conveyor belt for the eastern United States that runs from the northern tip of Michigan through six states to the southern edge of Florida. This 2,160 mile corridor of commerce moves goods to all modes of transport for distribution to the world.

The Brent Spence Bridge is at the convergence of I-71, I-74 and I-75 at the Ohio River. Its location is critical to north/south movements in the eastern United States while also connecting the upper Midwest with the ports and trade corridors of the Southwest and Southeast.

This bridge is the lynchpin to the nation’s busiest freight corridor.  The yearly economic value of commerce that travels across the Brent Spence Bridge is an astounding $400 billion. By 2030, in real dollars, this amount  grows to $815 billion.

However, because congestion levels are growing exponentially and crashes occur frequently along the corridor it is becoming more and more ineffective in the movement of goods and people.

News Article (12-19-10)
Possible New Bridge Designs
brentspencebridgecorridor.com