Project record

Brazos Island Harbor Phase 2 channel deepening

Aerial visualization of Brazos Island Harbor pipeline dredging, with a cutter suction dredge, support vessels and floating pipeline in the marked ship channel

IMWO artist's impression of the published Brazos Island Harbor Phase 2 pipeline-dredging scope

Contract W912HY24C0005 places Callan Marine on the federal and Port of Brownsville Phase 2 channel-deepening package. The award scope calls for approximately 7 million cubic yards of pipeline dredging across a 13-mile segment, taking the main channel from 42 feet to a 52-foot authorized depth and routing material to confined Placement Area 5B. USACE says new-work dredging began in November 2024 and remains under construction toward FY2026 completion. USAspending currently reports USD 109,239,688.73 in obligations, while the August 2024 owner announcement described the award as USD 104 million. The published sources do not explain the full commercial movement or identify final quantities and acceptance.

Project signal

Delivery in United States

Current status USACE lists Phase 2 in construction with new-work dredging continuing toward an FY2026 scheduled completion; final accepted depth, certified quantity and contract completion are unpublished Source confidence Confirmed

Location

United States / Americas

Segment

Capital dredging and navigation-channel deepening

Status

USACE lists Phase 2 in construction with new-work dredging continuing toward an FY2026 scheduled completion; final accepted depth, certified quantity and contract completion are unpublished / Confirmed

Last checked

16 August 2026

Coverage

Related sectors

Capital dredging and navigation-channel deepening 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, Galveston District, with the Port of Brownsville as non-federal sponsor
Delivery parties
Callan Marine Limited - prime contractor under W912HY24C0005, General Marshall and General Bradley - Callan Marine cutter suction dredges reported as demobilized in the July 2025 amended navigation notice, General MacArthur - Callan Marine cutter suction dredge reported as mobilized to continue the federal contract in August 2025, Barges, tugboats, survey boat, skiffs, pipeline and other lower tiers - functions reported, but firms and ownership not separately identified
Contract route
USAspending identifies a firm-fixed-price definitive contract resulting from sealed-bid solicitation W912HY24B0016. Full and open competition produced three offers, with no set-aside and an individual subcontracting plan. Callan Marine Limited received the 6 August 2024 award under NAICS 237990 and PSC Z2KB.
Execution window
The federal performance period runs from 3 September 2024 to 4 June 2026 and the USAspending record was last modified on 26 March 2026. The Port announced an October 2024 planned start; USACE says dredging began in November 2024. A July 2025 amended navigation notice carried an operating window through 4 May 2026, while the current USACE project page still describes construction and targets FY2026 completion. These dates do not establish final completion or acceptance.
Works package
Deepen approximately 13 miles of the Brownsville Ship Channel by 10 feet to a 52-foot authorized depth, removing about 7 million cubic yards with pipeline dredging and routing material to confined Placement Area 5B. The federal package is Segment B, from the turning-basin area toward the private partner's site. USACE separately describes the wider programme as including entrance and jetty-channel deepening to 54 feet, main-channel deepening to 52 feet, berth dredging, placement-area improvements and navigation aids; those wider elements must not all be assigned to W912HY24C0005.
Marine interfaces
The amended USACE notice describes continuous 24-hour, seven-day dredging with cutter suction dredges, barges, tugs, a survey boat, skiffs and floating and submerged discharge lines extending to confined Placement Area 5B. Passing arrangements require VHF coordination and advance contact in a live commercial channel. The notice records a plant transition from General Marshall and General Bradley to General MacArthur, but it does not publish production rates, downtime, survey results or accepted quantities.
Commercial evidence boundary
The Port of Brownsville and USACE announced the award at a rounded USD 104 million in August 2024. USAspending currently reports USD 109,239,688.73 in obligations, a firm-fixed-price form, three offers and zero reported subaward actions. The federal ledger is therefore USD 5.240 million above the rounded announcement baseline, but the published profile does not allocate that difference among quantities, options, changes, escalation or other transaction causes. The wider USD 139.5 million Phase 2 funding plan includes owner and programme costs beyond Callan Marine's dredging contract.

Contract and delivery chain

Named roles and open packages

Named appointments are shown against the workstream they cover. Unallocated packages remain open until a project source identifies the responsible party.

Federal prime award

W912HY24C0005

Named party
Callan Marine Limited
Status
Confirmed
Source position
USAspending records Callan Marine as recipient, USD 109,239,688.73 in current obligations and a performance period through 4 June 2026. Source
Capital dredging scope

Phase 2 / Segment B

Named party
USACE Galveston District and Port of Brownsville
Status
Confirmed
Source position
The owner announcement defines a 13-mile, 10-foot deepening to 52 feet, approximately 7 million cubic yards, pipeline dredging and placement in PA 5B. Source
Field delivery and named plant

Phase 2 channel dredging

Named party
General Marshall, General Bradley and General MacArthur
Status
Confirmed
Source position
The amended USACE navigation notice reports the first two dredges demobilized, General MacArthur mobilized to continue the federal contract, continuous operations and pipeline to PA 5B. Source
Current owner status

Brazos Island Harbor Channel Improvement Project

Named party
U.S. Army Corps of Engineers
Status
Confirmed
Source position
USACE currently classifies the project in construction, says new-work dredging continues and targets completion during FY2026. Source
Acceptance and closeout

W912HY24C0005

Named party
USACE Galveston District and Callan Marine
Status
Not evidenced
Source position
The reviewed public chain does not publish final measured cubic yards, contract-specific acceptance surveys, PA 5B acceptance, completion certification, final payment or closeout.

Project timeline

Material developments

Dated events that changed scope, counterparties, delivery, commissioning or operating status.

Open this project in the Change Log

The federal award record reached USD 109.240 million in obligations

The current ledger is above the rounded USD 104 million award announcement, but the public profile does not explain the complete transaction-level cause.

Source

USACE recorded a cutter-suction dredge transition

The amended navigation notice reports General Marshall and General Bradley demobilized and General MacArthur mobilized to continue the federal package.

Source

USACE and the Port marked the Phase 2 field start

The groundbreaking followed the November 2024 start of new-work dredging and fixed the public separation between public Phase 2 and privately financed Phase 1.

Source

Evidence gap

What remains unverified

Outstanding evidence

  • W912HY24C0005 transaction and modification ledger
  • Bid schedule, awarded unit rates and quantity reconciliation
  • Contract-specific pre- and post-dredge hydrographic surveys
  • Final measured quantity against the 7 million yd3 design estimate
  • Placement Area 5B capacity, environmental controls and acceptance
  • General MacArthur demobilisation and final plant record
  • Completion certificate, final payment and federal contract closeout
  • Named lower tiers and later reported subaward actions
  • Separation from Segment A and maintenance-dredging packages

Related records 3

Reporting status

Delivery, confirmed confidence

Last checked 16 August 2026 across 7 cited sources. The dated timeline above carries the project events.

Last checked 16 August 2026 Cited sources 7

Sources and related records

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Source collections

Project sources 7