Project record

Osborne No.4 approach and shiplift-pocket maintenance dredging

Participation
Requires review
Participation checked

Active; end-November 2026 expected

Participation source

Osborne No.4 maintenance dredging covers the approach, berth and area beneath the shiplift. South Australia's October notice specifies a 1.8 km submerged pipe and an expected end-November programme.

OSBORNE NO.4 / WORK PLAN. Three records connect to operating release. Plant envelope. Clearances beneath installed lift. Agreed daily working area. Pipe corridor. Alignment and marker condition. Changes entered into marine plan. Final pocket. Survey and operator release. Usable depth established by result. IMWO method diagram / Current operating notice plus facility interfaces

IMWO original osborne project engineering diagram based on primary requirements and records

Location

Australia / Asia Pacific

Segment

Dredging

Phase

Construction / Confirmed

Last checked

28 October 2026

Coverage

Related sectors

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
Australian Naval Infrastructure, facility owner; current dredging client not named in NTM 76/2026
Delivery parties
Current dredging contractor not named in NTM 76/2026; McConnell Dowell describes the wider CUF marine development
Contract route
The navigation notice confirms an active maintenance operation without an award reference. McConnell Dowell describes ECI followed by a lump-sum contract for the wider historical CUF development.
Execution window
NTM 76/2026 reports a mid-June 2026 start, Monday-Saturday 07:00-19:00 working and expected end-November completion.
Works package
Maintenance of the Osborne No.4 approach, berth pocket, wharf and area beneath the shiplift, with a 1.8 km submerged pipeline outside the navigable channel.
Marine interfaces
Dredging access beneath the installed lift, pocket surveys, pipe marking and vessel movements share the facility's confined marine operating area.
Commercial evidence boundary
The active notice provides operating constraints, while the broader contractor account describes related facility interfaces. A current price, exact contractor allocation, material route and participation status remain unconfirmed.

Contract and delivery chain

Work packages and named roles

Published scope, named parties and supporting evidence for each workstream.

Scope

Osborne No.4 approach and shiplift-pocket maintenance dredging

Named party
Australian Naval Infrastructure, facility owner; current dredging client not named in NTM 76/2026
Evidence status
Confirmed
Source position
Maintenance of the Osborne No.4 approach, berth pocket, wharf and area beneath the shiplift, with a 1.8 km submerged pipeline outside the navigable channel. Source
Programme

Documented delivery conditions

Named party
Current dredging contractor not named in NTM 76/2026; McConnell Dowell describes the wider CUF marine development
Evidence status
Confirmed
Source position
NTM 76/2026 reports a mid-June 2026 start, Monday-Saturday 07:00-19:00 working and expected end-November completion. Source

Evidence gap

What remains unverified

Outstanding evidence

  • Active pocket boundary and shiplift operating restrictions
  • Submerged-pipe alignment, marker condition and change notices
  • Final pocket survey and operator release

Related records 1

Reporting status

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

Sources and related records

Project changes Methodology Email a correction Project tracker
Source collections

Project sources 4