Host to America’s Dinner Table: A Taco Tells a Bigger Story

What does Taco Tuesday have to do with the Mississippi River? More than you might think.

Look at a taco and you see dinner. Look closer and you see agriculture, logistics, international commerce, and a supply chain stretching from America’s heartland to dinner tables worldwide. Corn, cooking oil, produce, spices, meat, and cheese: every ingredient tells a story about where our food originates and how it travels to our plates.

This National Taco Day, the Port of Plaquemines is using one of America’s favorite meals to highlight a critical reality: America’s dinner table is tied to the world through maritime trade—and the Mississippi River is its central highway.

At the gateway between that inland river network and the Gulf of Mexico sits the Port of Plaquemines.

Downriver: America’s Harvest Heads to the World

Start with the foundation of the taco: corn.

Across America’s agricultural heartland, farmers cultivate corn on tens of millions of acres. Much of that harvest reaches international buyers through an extensive transportation network of trucks, railroads, grain elevators, river barges, and ocean vessels. The Mississippi River anchors that entire corridor.

According to the Port of Plaquemines 2023 Market Study, corn accounted for approximately 35% of the agribulk volume in the Port’s market area from 2011 through 2022. With an average annual agribulk throughput of approximately 12.4 million tons during that window, corn alone represented roughly 4.3 million tons per year.

Corn moving through this network serves diverse global needs—from livestock feed and basic food ingredients to industrial applications. The connection to National Taco Day isn’t that every kernel passing through Plaquemines becomes a tortilla shell; it is that the very same agricultural engine feeding American families also supplies staple commodities across the globe.

The Mississippi River: America’s Agricultural Highway

For generations, the Mississippi River system has provided interior American producers reliable, cost-effective access to foreign markets. According to the U.S. Department of Agriculture, roughly 65% of U.S. grain exports move along the nation's inland waterways.

Barges transport vast volumes of commodities downriver, where deep-water terminals transfer bulk cargo to oceangoing vessels bound for overseas destinations. Before those ships enter open water, they transit Plaquemines.

The Port of Plaquemines covers the first 81 miles of the Mississippi River from the Gulf of Mexico, positioning it directly at the confluence of interior river transit and global sea lanes. For southbound agricultural bulk, those 81 miles represent the final domestic stretch before entering the Gulf.

River commerce, however, is never a one-way street.

Upriver: The World Comes to America

Now consider what tops the taco.

Fresh produce, spices, and specialty food products are staples of an international agricultural network serving American grocery shelves. Cargo vessels arriving from abroad enter the mouth of the Mississippi River and sail upriver to commercial terminals across the Lower Mississippi corridor.

Their first 81 miles? The Port of Plaquemines.

This dynamic highlights an essential aspect of the Port's mission: Plaquemines does not need to physically discharge every container or bulk load to play an indispensable role in its journey. Deep-draft vessels transiting to and from upriver terminals rely on Plaquemines as their primary gateway between inland terminals and international waters.

For arriving cargo, Plaquemines is the entry point to the American interior. For departing American exports, it is the threshold to the global economy.

One River. Two Directions. One Global Supply Chain.

This bidirectional movement makes the taco an ideal lens for viewing modern trade:

This continuous cycle operates largely out of sight—until we stop to consider how dinner arrived on our plates.

Why the First 81 Miles Matter

Plaquemines’ geography gives the Port an unmatched operational advantage along the Lower Mississippi. Those initial 81 miles offer deep-water river access free from the vertical air-draft limitations and bridge constraints found further inland.

Every vessel passing through this corridor represents far more than tonnage. It represents:

• Midwest farmers and grain elevator operators
• River mariners, harbor pilots, and longshore workers
• Processing plants and distribution networks
• Importers, exporters, and local businesses

The Port’s role extends beyond any single commodity. It serves as essential national infrastructure connecting American productivity with international opportunity—and bringing global commerce home.

Host to America’s Dinner Table

That connection is the foundation of Host to America’s Dinner Table, an ongoing series highlighting the intersection of everyday meals, U.S. agriculture, global logistics, and the Mississippi River.

A homemade cookie connects us to wheat, dairy, and sugar. A taco traces a journey from the Corn Belt down the river, and then turns back toward incoming international trade.

So this National Taco Day, enjoy your meal—and take a moment to appreciate the supply chain that made it possible.

Port of Plaquemines

Host to America’s Dinner Table.