Project record

Holt Lock permanent monolith repair

Participation
Requires review
Participation checked

Permanent monolith repairs with revised navigation closures

Participation source

USACE is repairing the damaged riverside monolith at Holt Lock. Its 22 October bulletin revises the continuous closure and the subsequent five-day construction/two-day navigation pattern through an estimated 18 December.

IMWO diagram. Holt repair chronology from 2024 cracking and interim reopening to January 2026 permanent anchoring and the October navigation revision

IMWO original Holt repair chronology based on USACE records

Location

United States / Americas

Segment

Inland navigation lock rehabilitation and hydraulic steel structures

Phase

Construction / Confirmed

Last checked

30 October 2026

Coverage

Related sectors

Inland navigation lock rehabilitation and hydraulic steel structures 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, Mobile District
Delivery parties
USACE Mobile District directs the permanent repair; its cited engineering account does not name the construction contractor.
Contract route
The cited records describe an active owner-directed repair and navigation controls. They provide no current procurement invitation or response deadline.
Execution window
Continuous closure is scheduled to 06:00 on 31 October 2026, followed by 06:00 Monday-06:00 Saturday closures and weekend openings through an estimated 18 December. The bulletin prints CDT through the November clock change.
Works package
Permanent repair of the riverside wall monolith, including post-tensioned anchors. The April engineering account describes drilling, reaming, anchor installation and stressing, with additional anchors and mass concrete in subsequent phases.
Marine interfaces
Holt lies at river mile 347. The repair needs exclusive construction periods while navigation is concentrated into the issued openings; access for deliveries and commercial tows shares that operating schedule.
Commercial evidence boundary
A missed Monday passage can move a planned transit into the following weekend. Arrival margin and holding time enter the delivery programme alongside the construction work.

Evidence gap

What remains unverified

Outstanding evidence

  • Later district bulletins and lockmaster passage instructions
  • District confirmation of the operating clock after the November change
  • Tow arrival margin, queues and available holding areas

Related records 2

Reporting status

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

Sources and related records

Project changes Methodology Email a correction Project tracker
Source collections

Project sources 4