River Note · Inland & coastwise markets · Free to read

Rates up $3.55 with October quoted 25 to 44% higher, and Memphis forecast below zero by Aug 7

Every river system rose for the week ending July 28. The Lower Mississippi export corridor jumped $3.55 to $18.09 a ton, and USDA's published forward curve now quotes every origin region above its current rate three months out.

Lower Mississippi export corridor
$18.09per ton↑ $3.55 vs. last week (24.4%)

Ten segments, all reporting every week in the window. The July 28 print is 24.4% above the prior week and 49.5% above June 30.

Rate, US$/ton. $12.31 → $18.09. Nine report weeks to July 28, 2026. Grey band spans the range of the earlier readings.
Source: USDA Agricultural Marketing Service, week ending July 28, 2026
Units: per ton
Every river system rose, and the Lower Mississippi rose fastest. Observed weekly rates, all five river systems, week ending July 28, 2026.
River systemUS$ per tonChange vs. last week
Upper Mississippi (5 segments)$43.17↑ $2.53
Illinois (6 segments)$38.72↑ $3.44
Ohio (4 segments)$28.45↑ $2.41
Middle Mississippi (1 segment)$25.62↑ $4.36
Lower Mississippi (10 segments)$18.09↑ $3.55

The forward curve prices October 25 to 44% higher

The forward view leads with USDA's own quotes, not our model. USDA publishes downbound rates as a percent of the benchmark tariff at three horizons: current, one month out, three months out. For the week ending July 28, every one of the seven origin regions is quoted higher at every horizon, and the three-month leg carries a 25 to 44% premium over current. The steepest is Cairo to Memphis at 44.1%; the highest absolute quote is Twin Cities October at 1,018% of tariff.

These are percent-of-tariff quotes by origin region, a different unit and geography from the dollar-per-ton table above, and the two are never combined. What they say is direct: sellers of forward freight are asking late-October prices 25 to 44% above today's, with the largest premiums on the origins closest to the shallow water.

River conditions

Mississippi River at Memphis, TN (NWS MEMT1): 3.6 ft stage on July 31, down from 15.6 ft a month earlier, forecast below 0 ft around August 7 on its way to −1.9 ft.

Mississippi River at St. Louis, MO (NWS EADM7): 2.8 ft stage on July 31, after a 15.4-ft fall in 19 days. The overnight forecast bottoms at −0.1 ft on August 11 and holds near gauge zero through August 14; the previous day's issuance had fallen to −1.1 ft, so the path is revising daily.

Mississippi River at Vicksburg, MS (NWS VCKM6): 18.5 ft stage on July 31, down from 34.3 ft a month earlier, with the July 30 forecast running to 12.0 ft by August 21.

A stage below gauge zero is a reading against the datum, not a closure. St. Louis and Memphis have operated below zero before. No draft restriction was posted anywhere we checked as of July 31: the notice feed we collect, the Corps' notices system, and the St. Louis District's July 29 channel report, so draft planning against these forecasts stays implication rather than instruction.

Locks: daytime closures land next week

Ahead, the calendar is not empty. The Corps' notices system carries Lock 19 shut 06:00 to 18:00 weekdays, August 3 to 21, for pier coring ahead of winter construction, with nights and weekends open, and Lock 25 shut 07:00 to 19:00 on August 4 and 6 for protection-cell repair. Both are on the Upper Mississippi.

Emsworth on the Ohio has been under an amended notice since July 6 covering both chambers, and Barkley Lock on the Cumberland closes August 10 through September 30.

Demand: grain moving early

Downbound grain rose a fifth straight week, to 2.37 million tons in the week ending July 25, up 11.7% on the week and 71.7% above the June 20 trough. That is consistent with shippers pulling movement forward ahead of the low water; that is an inference, and the countercase is that it is ordinary seasonal timing. Tons moved early are tons borrowed from the harvest peak.

Bottom line — what to watch into next week

By whenThe callOn what basis
Mon Aug 3Lock 19 daytime closures begin, 06:00 to 18:00 CDT weekdays through August 21USACE notice 214755 (Rock Island)
Tue Aug 4 and Thu Aug 6Lock 25 closed 07:00 to 19:00 both days for protection-cell rebuildUSACE St. Louis District channel condition report, July 29
Tue Aug 4USDA barge-rate week ends; the first observed test of whether the forward curve was rightWeekly USDA Agricultural Marketing Service print
Fri Aug 7Memphis is forecast to cross below 0 ftNWS forecast issued July 30 to 31; forecasts revise daily
Mon Aug 10Barkley Lock closes through September 30USACE notice 213653-1 (Nashville)
Source: USDA Agricultural Marketing Service barge rates and tariff quotes; National Weather Service river forecasts; USACE Notices to Navigation Interests and St. Louis District channel condition report
Grain: One row per river segment per weekly report date; one forecast issuance per gauge
Showing: 10 of 26 reporting segments for the export-corridor proxy; 3 of 16 gauges, the three bellwethers bound to the export corridor
Period: Rates through the week ending July 28, 2026; river and lock conditions through July 31; grain movements through the week ending July 25
Units: US$ per ton; percent of the 1976 benchmark tariff; feet; short tons
Evidence class: Observed. Forecast stages are estimates and revise daily
Uncertainty: Forward quotes are asks, not transactions
Built by: Ken Beegle
Pre-specified: No — exploratory
As of: July 31, 2026