Project record

Oswego Harbor 2026 breakwater repair phases

Large armourstone along the Oswego Harbor breakwater with the port and Lake Ontario beyond in May 2022

Avery Schneider, U.S. Army; Oswego Harbor context from May 2022, not 2026 construction progress

USACE Buffalo District awarded Dean Marine and Excavating USD 14.9 million to repair 425 feet of the East Arrowhead breakwater and 307 feet of the Outer West breakwater at Oswego Harbor. It is the second of three funded phases covering more than 1,330 feet; a separate 600-foot Outer West package is already under way.

Project signal

Award in United States

Read Oswego by contract and breakwater section. The current award covers 732 feet across East Arrowhead and Outer West; it does not replace the earlier 600-foot Outer West package or reopen the completed West Arrowhead work. Progress should be tied to the limits and close-out record for each phase.

Current status USD 14.9 million phase-two award confirmed; construction planned from summer 2026 through 2028 Source confidence Confirmed

Location

United States / Americas

Segment

Port infrastructure

Status

USD 14.9 million phase-two award confirmed; construction planned from summer 2026 through 2028 / Confirmed

Evidence reviewed

17 July 2026

Controlled taxonomy

Related sectors

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Knowledge context

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Project anatomy

Scope, counterparties, and execution logic

Client / authority
U.S. Army Corps of Engineers, Buffalo District
Delivery parties
Dean Marine and Excavating, Great Lakes Dock and Materials
Contract route
Three-phase, federally funded breakwater repair programme; phase two awarded to Dean Marine and Excavating on 30 April 2026
Execution window
Phase one began in August 2025 and was scheduled through winter 2026; phase two is planned from summer 2026 through 2028; phase three construction is targeted for 2027
Works package
Phase one repairs 600 feet of Outer West under a USD 9.1 million contract. Phase two repairs 425 feet of East Arrowhead and 307 feet of Outer West under the USD 14.9 million Dean Marine award. A funded third phase is planned to continue work on both breakwaters.
Marine interfaces
Armourstone breakwater reconstruction from marine plant beside an open federal navigation channel, with separate work limits on the East Arrowhead and Outer West structures
Commercial read
The new award commits a defined 732-foot package, but it is not a notice that work has started. The first package also remains open until its 600-foot reach is inspected and accepted. Contractor, length and close-out should therefore be reported phase by phase.
Next milestone
Accountable confirmation of Dean Marine mobilisation, followed by section-specific stone placement and acceptance records

Material change register

What changed, when, and what it proves

Only source-bound events that alter phase, scope, counterparties, delivery, completion, commissioning, or acceptance are listed. A change can advance the record without proving the next gate.

USACE awarded the 732-foot second repair phase

Dean Marine and Excavating received a USD 14.9 million contract covering 425 feet of East Arrowhead and 307 feet of Outer West. USACE planned a summer 2026 start, but the award does not establish mobilisation or production.

Read controlling source

The 600-foot Outer West phase moved into construction

USACE recorded the start of the USD 9.1 million Great Lakes Dock and Materials package after completing the separate 2,700-foot West Arrowhead repair. The current programme should not merge those two work limits.

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USACE awarded the first Outer West package

The USD 9.1 million contract set a 600-foot rubble-mound overlay scope with completion scheduled for winter 2026. That package has a different contractor and acceptance path from the 2026 award.

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Delivery watch

Evidence needed next

Accountable confirmation of Dean Marine mobilisation, followed by section-specific stone placement and acceptance records

Decision watchpoints

  • Dean Marine mobilisation on the phase-two work limits
  • Stone delivery and placement by East Arrowhead and Outer West section
  • Marine traffic controls while the federal navigation channel remains open
  • Surveyed or inspected length completed under the 600-foot phase-one package
  • Phase-two completion and acceptance against the 425-foot and 307-foot limits
  • Phase-three contract details and the planned 2027 construction start

Related records 2

Project availability status

This public project page is a tracked market record rather than a tender notice, contractual commitment, or commercial instruction. Use the status, confidence label, evidence-review date, and source note together when judging how much weight to place on the signal.

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Record control

Evidence reviewed date is not a project-event date.

IMWO changes phase, participants, scope, completion, or acceptance wording only when a dated source establishes the change. The review date records when the evidence set was checked; it does not claim that physical work changed on that date.

Evidence reviewed 17 July 2026 Sources in this record 4

Source record

USACE's 11 May 2026 release controls the phase-two award, Dean Marine appointment, 425-foot East Arrowhead and 307-foot Outer West limits, planned summer start and 2028 programme horizon. The August 2025 USACE record separates the completed 2,700-foot West Arrowhead work from the USD 9.1 million, 600-foot Outer West phase-one package. The April 2025 award notice provides the earlier contractor and rubble-mound overlay basis. Phase-two mobilisation and completion have not been reported.

Phase: award. Evidence reviewed: 17 July 2026.

Project sources 4