# A Winter to Remember: Corps of Engineers continues annual winter maintenance fight to preserve aging infrastructure > St. Paul District > News Stories

> The US Army Corps of Engineers St. Paul District dewatered Lock and Dam 4 near Alma, Wisconsin for inspection and repairs. The article cites an ASCE grade of D+ for inland waterways and about 9,700 tows delayed by an average of 12.23 hours in 2020.

- Date: 2021-04-06 · published 2021-04-06T12:00:00.000Z
- Category: logistics · region US · magnitude low
- Page: https://feedsoft.ai/events/47496-a-winter-to-remember-corps-of-engineers-continues-annual-winter-maintenance
- Commodities: [Barge Freight (St. Louis)](https://feedsoft.ai/c/BARGE.md), [Corn](https://feedsoft.ai/c/CORN.md), [Soybeans](https://feedsoft.ai/c/SOY.md)

## Why it matters

Aging locks and winter maintenance closures create recurring delays for upper Mississippi grain barges, which adds freight cost and can slow shipments to export elevators.

## Similar past events

| Commodity | Date | Event | 5-day % | 20-day % |
| --- | --- | --- | --- | --- |
| CORN | 2018-12-07 | [Corps of Engineers says farewell to another navigation season  on Upper Mississippi River  > St. Paul District > News Releases](https://feedsoft.ai/events/61477-corps-of-engineers-says-farewell-to-another-navigation-season-on-upper.md) | +0.5% | +2.0% |
| CORN | 2021-07-23 | [Corps of Engineers invites public aboard the largest diesel towboat on the Mississippi River > St. Louis District > News Releases](https://feedsoft.ai/events/45961-corps-of-engineers-invites-public-aboard-the-largest-diesel-towboat-on-the.md) | -1.1% | -2.6% |
| CORN | 2023-02-13 | [Record setting dredging season comes to an end > St. Louis District > News Stories](https://feedsoft.ai/events/16649-record-setting-dredging-season-comes-to-an-end-st-louis-district-news-stories.md) | -1.3% | -6.3% |
| CORN | 2021-07-30 | [Corps to host three open houses onboard the Motor Vessel Mississippi > St. Paul District > News Releases](https://feedsoft.ai/events/45960-corps-to-host-three-open-houses-onboard-the-motor-vessel-mississippi-st-paul.md) | -0.1% | -1.1% |
| CORN | 2016-11-01 | [River Infrastructure a Major Concern for Corn Farmers - Southeast AgNET](https://feedsoft.ai/events/73764-river-infrastructure-a-major-concern-for-corn-farmers-southeast-agnet.md) | +1.9% | -4.3% |
| SOY | 2018-12-07 | [Corps of Engineers says farewell to another navigation season  on Upper Mississippi River  > St. Paul District > News Releases](https://feedsoft.ai/events/61477-corps-of-engineers-says-farewell-to-another-navigation-season-on-upper.md) | -0.3% | +0.3% |
| SOY | 2021-07-23 | [Corps of Engineers invites public aboard the largest diesel towboat on the Mississippi River > St. Louis District > News Releases](https://feedsoft.ai/events/45961-corps-of-engineers-invites-public-aboard-the-largest-diesel-towboat-on-the.md) | +1.3% | -6.6% |
| SOY | 2023-02-13 | [Record setting dredging season comes to an end > St. Louis District > News Stories](https://feedsoft.ai/events/16649-record-setting-dredging-season-comes-to-an-end-st-louis-district-news-stories.md) | -1.0% | -2.8% |

## Sources

- mvp.usace.army.mil: https://www.mvp.usace.army.mil/Media/News-Stories/Article/2562273/a-winter-to-remember-corps-of-engineers-continues-annual-winter-maintenance-fig/

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