Analysis · Inland & coastwise markets · Free to read

The low-water rate spike came two months early

Barge freight on the lower Mississippi jumped 24 percent in the last full week of July, a move this river usually saves for late September.

Grain-barge freight on the lower Mississippi River reached $18.09 a ton in the week reported July 28: up $3.55 in one week and 49.5 percent over four weeks, averaged across ten lower-river segments. Moves of that size are not rare on this river. Moves of that size in July are.

Set aside 2004, the series' first year, when it was swinging between bases of $6.43 and $10.55, and this is the biggest early-summer weekly move the U.S. Department of Agriculture has recorded since the series began.

Ken Beegle · published August 3, 2026 · figures as of August 3, 2026

The rate held flat for nine weeks, then moved three times in a row. Ten-segment lower-Mississippi average, US$ per ton, thirteen report weeks to July 28, 2026. Value axis runs from zero.

Source: USDA Grain Transportation Report, Tonnage & Trade data lake

Grain: One row per river segment per weekly USDA report date

Showing: 10 of 26 reporting segments — the export-corridor proxy

Period: Report weeks May 5 to July 28, 2026

n: 13 weekly prints, ten segments each

Units: US$ per ton

Evidence class: Observed

Built by: Ken Beegle

Pre-specified: No — exploratory

The ledger — everything published, newest first, nothing ranked

Date	Series	Finding	Evidence
Aug 7	River Note	The Coast Guard posted the season's first low-water advisory, and USDA's forward quotes now date the squeeze: September 14 to 41 percent over spot, November near par.	USDA barge rates, NWS forecasts, USACE and USCG notices · observed
Aug 3	Analysis	Lower-Mississippi freight reached $18.09 a ton, crossing $14 five weeks earlier in the calendar than in either recent low-water year.	USDA barge rates, USGS stage · observed
Jul 31	River Note	Every river system rose, and USDA's forward curve quoted every origin region 25 to 44 percent above its current rate three months out.	USDA barge rates, NWS forecasts, USACE notices · observed
Jul 23	Analysis	China's cumulative U.S. soybean book reached 12.4 million tons with seven weeks left, 40 percent of the 2021 to 2023 pace at the same date.	USDA FAS export sales · observed
Jul 23	Analysis	The inland system lost 28 percent of its tonnage in 20 years, and coal accounts for most of the loss while everything else held.	USACE waterborne commerce · observed
Jul 23	Analysis	Scarcity, not demand growth, set barge pricing in Q1, and the July 29 print is the test of whether it holds.	Company filings · observed
Jul 23	Analysis	The 1997 build boom reaches its 30-year inspections with replacement running at about a fifth of the pace that built it.	USACE vessel census, USCG records · observed
Jul 23	River Note	Rates jumped 10 to 25 percent across every river system, and the forward read said the tightening was not done.	USDA barge rates, NWS forecasts · observed
Jul 15	Note	Why this exists: sourced maritime evidence, with every estimate labelled as one.	—

Showing 9 of 9 published items, ordered by publication date.