GRAIN GUY FIFTY BLOG

So what When the Ohio’s share of flow drops, the Lower Mississippi and Gulf export complex feel it in draft and volume long before a barge leaves the bank. Key takeaways • At the confluence the Ohio is not a junior partner. Average discharge is higher than the Mississippi arriving past Thebes (~281,000 cfs vs. ~208,000). Under the right stages it can dominate or even reverse surface flow. In the September 2025 drought it supplied only about 8% of Lower Mississippi flow agains

The Ohio was different. The first thing that got my attention wasn’t tow size or lock dimensions. It was the amount of water, and what you were expected to do with it.

So what: When the St. Louis gauge drops or the harbor shuts, every elevator from Peoria to the Quad Cities feels it in the bid before the barge ever moves. Key takeaways The Middle Mississippi runs 195 miles from the Missouri River mouth to the Ohio at Cairo. Lock 27 (opened 1953, 1,200-ft main chamber) is the last lock on the Mississippi. Below it the river is open to the Gulf. St. Louis harbor is the system’s gear-change point. Tows arrive sized for 600-ft chambers (typical

You don’t manage the Middle Mississippi. You keep up with it.

The Illinois runs 336 miles, Chicago to Grafton, through eight locks. At the top, the Chicago canals tie the Great Lakes to the Mississippi basin. That end is industrial now, and grain through it is rare.

When the River Quits Moving If memory serves, it was the summer of 1988 when the Mississippi got low enough that it backed up onto the Illinois, and hundreds of loaded ADM corn barges sat stuck for weeks. I had responsibility for our barge loading at the time, and nobody in that business was smiling. Those barges were supposed to be headed for the Gulf. Instead, they were sitting on the river in the summer heat. We sent crews out to open covers and run portable aerators. We a

The Upper Mississippi’s advantage is scale. It can move a lot of northern Corn Belt grain south and a lot of fertilizer north

The Mississippi River System is not one river. It is the connected set of channels, locks, terminals, and barges that decides whether your grain actually reaches the Gulf on schedule. Key takeaways: The Mississippi-connected network covers roughly 10,000 of the nation's 12,000 miles of federally maintained inland waterways. Corridors are not interchangeable. The Upper Mississippi and Illinois Waterway are lock-constrained. The Lower Mississippi is open river with no locks at

America's Working Waterways, Post III When people say the Mississippi River moves American grain, they usually picture a long tow of covered hoppers running south toward Memphis, Baton Rouge, or New Orleans. That is the visible part of the system. The working part begins well upstream. It begins at country elevators taking truck grain. It begins at processors sourcing corn and soybeans. It begins at rail interchanges, river terminals, barge-loading docks, and fleeting areas.

A navigable river and an open lock do not, by themselves, move grain. Capacity depends on towboat power, available barges, fleeting space, terminal service, and experienced people working together. A towboat is more than a motor behind barges. Its horsepower and handling capability determine what size tow can safely move in current, through bends, near bridges, and through locks. The biggest Lower Mississippi tows are not the norm everywhere. A tow that works on an open Lower

America's Working Waterways — Companion Reference Post III looks at the Mississippi River System itself: its basin, its corridors, its locks, and its channel. This post looks at how that system, and every other corridor in this series, actually gets operated once the water is deep enough and the lock is open. Towboats, barge fleets, fleeting areas, harbor crews, and the people who run all of it work the same way whether the corridor is the Mississippi, the Illinois, the Ohio

The United States does not have one grain waterway. It has several major corridors, each with its own territory, market connections, and operating limits. The closest blue line on a map is not automatically the best path to market. Key takeaways • A watershed and a working waterway are not the same thing. A river can drain a large basin and still be a weak freight route. The Kaskaskia in Illinois sits in the Mississippi watershed. It is not a peer of the Illinois Waterway or

America’s inland waterways are freight infrastructure. The math on one 15-barge tow is why they touch every bushel a U.S. elevator sells. Key takeaways • One 15-barge tow moves about 22,500 tons. That is roughly 225 railcars, or about 870 to 900 trucks, in a single move. • The working system covers about 12,000 miles across 38 states. It moves on the order of 500 million tons of freight a year, worth more than $158 billion. Grain shares the water with fertilizer, fuel, steel,

Water flows through a watershed. Freight moves through an operating system.

Most people look at a river and see scenery. Maybe recreation. Maybe a flood risk. People who work in grain, fertilizer, fuel, steel, or export logistics see something else: a freight system.

A reference for the America's Working Waterways series Every post in this series uses the same working vocabulary. Rather than re-explain terms post by post, this page collects them in one place — grouped by category, so you can find what you need without hunting through an alphabetical list. Link back here anytime a term needs more than a one-line definition. One editorial rule the whole series follows: every figure states its unit — bushels, short tons, metric tonnes, barge

A river’s value depends on keeping the whole corridor working. Depth, dredging, locks, terminals, vessel fleets, surveys, maintenance, and rules all matter. Low water, high water, congestion, breakdowns, or poor coordination can reduce capacity quickly.

Not all grain rivers do the same job

How a Handful of Rivers Feed the World Part 1 — Why Only a Handful of Rivers Matter When folks ask how many rivers there are in the world, they expect a clean number. The truth is we do not really know. It depends on what you choose to call a river instead of a creek or a stream. Some sources talk about thousands of named rivers. Others say there are tens of thousands if you count the smaller and seasonal channels that have local names. Even when you narrow it down to what th