Rates jumped 10–25% across every river system, and the forward read says the tightening isn't done
Rates and model through the week of Jul 14 · lock and river conditions through Jul 21 · export sales through Jul 9 · all figures from the Tonnage & Trade data release of Jul 22, 2026
The chokepoint moved: Emsworth Locks on the upper Ohio, in scheduled chamber repair since Jul 6, averaged 10-hour tow waits Jul 8–21; the Illinois system's average wait fell by half as the spring repairs finished.
The Jul 21 river forecast puts Memphis below gauge zero around Aug 3 and St. Louis near 1.5 ft, a fifth straight low-water season, starting about six weeks earlier than 2023–2025.
Corn is carrying the export program (13.2 million tons still on the books); the China soybean book is thin (136,000 tons outstanding), with harvest ten weeks out.
Rates rose $1.30–$5.28/ton in a week; the upper rivers are running ahead of the water explanation
Observed rates moved above our estimate of barge rates from river levels, season and fuel on three of five systems (the upper Mississippi by $4.24/ton and the Illinois by $4.23), while the Ohio and Lower Mississippi sit just under it. Markets pricing more than the model sees in the water is what pre-positioning ahead of a forecast drawdown looks like. Every system sits 57–71% above its seasonal norm for the calendar week.
| River system | Observed $/ton, wk of Jul 14 | Change vs. last week | Modeled $/ton | Seasonal norm | Tightness (0–100) |
|---|---|---|---|---|---|
| Upper Mississippi | $38.96 | ↑ $5.28 | $34.72 | $23.30 | 97 |
| Illinois | $34.38 | ↑ $4.65 | $30.15 | $20.79 | 98 |
| Ohio | $21.21 | ↑ $4.30 | $21.72 | $12.38 | 98 |
| Middle Mississippi | $19.01 | ↑ $3.49 | $18.70 | $11.64 | 98 |
| Lower Mississippi | $13.80 | ↑ $1.30 | $14.32 | $8.78 | 98 |
marts.mart_rate_nowcast, release of Jul 22). "Tightness" is our 0–100 rate-pressure reading. n: 26 river segments across the five systems (Lower Mississippi 10, Illinois 6, Upper Mississippi 5, Ohio 4, Middle Mississippi 1).The forward leg of the model prices further gains on all 26 river segments, from +$1.41/ton (Letsworth – Greenville) to +$3.21 (Dubuque – Genoa), steepest on the upper Mississippi and Illinois where the drawdown bites first. On weeks it hasn't seen, the rate estimate lands within about $5.26/ton of the actual on average, widening to roughly $9.41/ton in drought. Treat the levels as directional, the direction as the signal.
Emsworth is the new chokepoint at 10-hour average waits; the Illinois healed
Emsworth Locks and Dam on the upper Ohio (river mile 6, below Pittsburgh) has been in scheduled chamber repair since Jul 6 with traffic stopped in the affected chamber. Over Jul 8–21 its 107 lockages averaged 602-minute waits, with the slowest tenth above 32 hours. That pushed the Ohio system's average wait to 60 minutes from 38 in the prior two weeks. The Illinois moved the other way (115-minute average waits versus 220 in late June) as the spring repair backlog cleared. London Lock on the Kanawha remains out with an equipment malfunction, ongoing since Jun 5.
The water is the larger story. The National Weather Service forecast issued Jul 21 has the Mississippi River at Memphis, TN (NWS MEMT1) falling from 7.6 ft to below gauge zero around Aug 3 (−0.8 ft by Aug 4); at St. Louis, MO (NWS EADM7) from 9.2 ft to about 1.5 ft over the same window; and at Vicksburg, MS (NWS VCKM6) from 27.7 ft to 17.6 ft. Gauge zero is a datum, not a dry river. But at Memphis, negative stages have accompanied draft and tow-size restrictions in each of the last four years, and those restrictions began in late August or September in 2022–2025, not early August.
Bottom line: plan for draft restrictions on the middle and lower river weeks before the harvest program starts; Emsworth waits are schedule-driven and end with the repair, the water does not.
Corn is carrying the export book; the China soybean book is 136,000 tons with harvest ten weeks out
As of the week ending Jul 9 (USDA reports two weeks in arrears): corn shipped 1.59 million tons with 13.2 million still outstanding for the marketing year ending Aug 31, the volume behind the downbound program. Soybeans shipped 454,000 tons; net new sales were 188,000 tons, of which 134,000 went to China, but China's outstanding book is just 136,000 tons. Last fall's rate spikes came with a far larger committed program; this year's harvest demand still has to show up in the sales data before it can show up on the river.
On the radar: one repair, three dated tests of this note's read
Emsworth chamber repair continues (scheduled; began Jul 6; watch USACE for a completion date). The next USDA rate print (week of Jul 21) lands Jul 23 and will show whether the surge extended a third week. Kirby reports second-quarter results Jul 29, 6:00 a.m. Central, the first public read on tank-barge utilization against this market. The blanket Jones Act waiver expires Aug 16 (Department of Homeland Security bulletin; extension would be the surprise). And the Memphis forecast crosses gauge zero around Aug 3, the falsifiable near-term call in this note: stages holding above 5 ft would push the low-water premium into September.
Sources: USDA AMS barge rates and FAS export sales; USACE Corps Locks; NWS river forecasts; all via Tonnage & Trade internal data, release phase3-2b30a6a-20260722t0517z (Jul 22, 2026). Kirby date per its Jun 29 announcement; waiver expiry per the Mar/Apr 2026 DHS actions. The estimated rate and tightness reading are model outputs, not quoted or traded rates.
Prepared Jul 23, 2026 · Tonnage & Trade analytics · Guarantor: K. Beegle
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