Project record

Lower Chain of Rocks canal Potter maintenance

Participation
Requires review
Participation checked

Six-night programme with 17:00-07:00 closures around dredge plant

Participation source

USACE schedules nightly 17:00-07:00 closures around Potter at the lower Chain of Rocks canal. The pipeline dredge works around the clock, while the published traffic closure protects a concentrated production period.

IMWO Potter material-route diagram: river bed to dredge, pipeline that may cross channel, then placement outside the navigation channel.

IMWO original engineering diagram; source: USACE St.Louis District

Location

United States / Americas

Segment

Navigation channel maintenance dredging

Phase

Planning / Confirmed

Last checked

30 October 2026

Coverage

Related sectors

Navigation channel maintenance dredging is the primary work classification. Related sectors connect this record to adjacent marine delivery and market coverage.

Subject index

Related subjects

These subject pages bring together related projects, technical articles, reports, and evidence methods.

Project anatomy

Contract scope and delivery roles

Client / authority
U.S. Army Corps of Engineers, St. Louis District
Delivery parties
USACE St. Louis District operates dredge Potter and its attendant plant.
Contract route
USACE owner-operated dredging programme announced by navigation notice. The issued notice gives traffic instructions for the work area.
Execution window
Approximately six nights commencing on or about 26 October 2026, with nightly 17:00-07:00 CDT closures. The header lists 26 October 17:00 to 1 November 07:00 CDT.
Works package
Channel maintenance dredging at lower Chain of Rocks canal, Upper Mississippi River mile 184.1. Material is pumped outside the navigation channel through pontoon or self-floating pipeline.
Marine interfaces
The pipeline may cross the channel. The published night closures protect production near the plant; dredge and support-plant operation continues around the clock.
Commercial evidence boundary
The programme concentrates closures at night while plant remains operational during the day. Passage instructions, pipe handling and the queue at reopening determine transit timing through the work area.

Evidence gap

What remains unverified

Outstanding evidence

  • Current closure instruction and Potter passage coordination
  • Pipeline position, queue and arrival timing at reopening
  • Later programme changes and restored channel condition

Related records 2

Reporting status

Project phase
Planning
Evidence confidence
Confirmed
Last checked
30 October 2026
Cited sources
4

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Source collections

Project sources 4