# Corps warns of saltwater intrusion again; says construction of sill necessary below New Orleans

> The U.S. Army Corps of Engineers says low Mississippi River flow will require a sill near Myrtle Grove to block saltwater moving up from the Gulf of Mexico. The saltwater wedge is expected to reach 80 miles above Head of Passes within a month. It is the third straight year the Corps has built such a sill.

- Date: 2026-11-03 · published 2026-11-04T06:12:18.724Z
- Category: logistics · region US · magnitude low
- Page: https://feedsoft.ai/events/79256-corps-warns-of-saltwater-intrusion-again-says-construction-of-sill-necessary
- Commodities: [Barge Freight (St. Louis)](https://feedsoft.ai/c/BARGE.md)

## Why it matters

Slow river flow lets saltwater push upriver, which threatens freshwater intakes and can slow barge traffic on the lower Mississippi. Tighter barge capacity raises freight costs for grain shipments from the Midwest, which is mildly bullish for barge freight.

## Read by commodity

- BARGE: bullish ▲

## Sources

- wbrz.com: https://www.wbrz.com/videos/corps-warns-of-saltwater-intrusion-again-says-construction-of-sill-necessary-below-new-orleans/

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Data from Feedsoft AI (https://feedsoft.ai/). For information only; not investment advice.