Project record

Brazos Island Harbor FY24 entrance and jetty maintenance dredging

Great Lakes trailing suction hopper dredge Padre Island, the named dredge on the 2024 Brazos Island Harbor maintenance campaign

Great Lakes Dredge & Dock official Padre Island fleet image; the U.S. Coast Guard navigation notice independently assigns the vessel to this campaign, while the image itself is not a site-progress record

U.S. Army Corps of Engineers contract W912HY24C0008 placed Great Lakes Dredge & Dock on the FY24 hopper-maintenance campaign for the Brazos Island Harbor entrance and jetty channels. The initial USD 8,798,900 award moved into 24-hour operations with trailing suction hopper dredge Padre Island and survey vessels East River and Laguna. Dredged material was pumped through 3,550 feet of submerged line to a South Padre Island beach placement area. A 23 April 2025 final-quantity adjustment deobligated USD 1,342,725.65, leaving USD 7,456,174.35 currently reported, but the reviewed public chain does not publish the measured quantity, owner acceptance or certified final account.

Project signal

Delivery in United States

Current status Great Lakes' Padre Island campaign was publicly scheduled from 20 October to 16 November 2024; an April 2025 final-quantity modification reduced the current federal obligation from USD 8.799 million to USD 7.456 million, while accepted quantities and formal closeout remain unpublished Source confidence Confirmed

Location

United States / Americas

Segment

Maintenance dredging and operating-port access

Status

Great Lakes' Padre Island campaign was publicly scheduled from 20 October to 16 November 2024; an April 2025 final-quantity modification reduced the current federal obligation from USD 8.799 million to USD 7.456 million, while accepted quantities and formal closeout remain unpublished / Confirmed

Last checked

6 August 2026

Coverage

Related sectors

Maintenance dredging and operating-port access 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 additional state funding referenced by Great Lakes
Delivery parties
Great Lakes Dredge & Dock Co., LLC - prime contractor under W912HY24C0008, Trailing suction hopper dredge Padre Island - named campaign dredge in the U.S. Coast Guard navigation notice, Survey vessels East River and Laguna - named on-scene vessels; ownership and lower-tier relationship not established in the cited public record, Other environmental, beach-placement and marine-support lower tiers - not named; USAspending reports zero subaward actions
Contract route
Federal records describe a firm-fixed-price definitive contract under sealed-bid solicitation W912HY24B0023. The procurement used full and open competition with no set-aside, received two offers and required an individual subcontracting plan. The award was signed on 6 September 2024 to Great Lakes Dredge & Dock Co., LLC under NAICS 237990 and PSC Z1KF.
Execution window
Contract performance was scheduled from 18 September 2024 to 6 January 2025. USAspending records a notice-to-proceed modification on 21 October 2024, while the Coast Guard notice carried a field window from 20 October through 16 November 2024 and Great Lakes expected fourth-quarter completion. A final-quantity modification followed on 23 April 2025. These dated records establish mobilisation, field activity and commercial reconciliation stages but do not publish a completion certificate or owner acceptance.
Works package
The package maintained the Brazos Island Harbor entrance and jetty channels at their operating depths and beneficially reused dredged material on a nearby beach. The Coast Guard located the dredging spread in Brazos Santiago Pass and the Brownsville and Port Isabel harbours channel, with material pumped through approximately 3,550 feet of submerged line to the designated South Padre Island beach placement area. A 22 October 2024 change order shifted DMPA No. 2 south to stations 233+00-263+00 and DMPA No. 3 to stations 263+00-273+00. Public award data does not state the initial or final measured cubic yards.
Marine interfaces
Padre Island operated in a live entrance-channel environment on a stated 24-hour, seven-day basis, supported by survey vessels East River and Laguna. The 281-foot hopper dredge has a published 3,600-cubic-yard hopper and 24-inch discharge diameter. Delivery depended on hopper cycles, submerged-line connection, buoyed and lighted dredge lines, beach-placement control, survey coverage, passing arrangements and navigation-channel separation. The named plant evidence is contract-specific; later 2026 channel surveys also reflect subsequent capital works and cannot be treated as this contract's acceptance survey.
Commercial evidence boundary
The initial transaction obligated USD 8,798,900. The 23 April 2025 P00002 supplemental agreement described a final quantity adjustment for contract CLINs and reduced the obligation by USD 1,342,725.65, or about 15.26 percent, to USD 7,456,174.35. USAspending reports the same amount for current obligation, base plus exercised options and base plus all options. The change is evidence of measured commercial reconciliation, not a public final-quantity certificate or proof that every contract closeout step is complete.

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 owner

FY24 Brazos Island Harbor entrance and jetty maintenance dredging

Named party
U.S. Army Corps of Engineers, Galveston District
Status
Confirmed
Source position
The federal award and Great Lakes announcement identify USACE Galveston District as client for the maintenance package. Source
Prime award

W912HY24C0008

Named party
Great Lakes Dredge & Dock Co., LLC
Status
Confirmed
Source position
USAspending records Great Lakes as recipient and USD 7,456,174.35 in current obligations after the final-quantity adjustment. Source
Competition and contract form

W912HY24B0023 solicitation and resulting contract

Named party
USACE Galveston District and Great Lakes
Status
Confirmed
Source position
The federal record identifies a sealed bid, full and open competition, two offers, no set-aside, firm-fixed-price terms and an individual subcontracting plan. Source
Named dredging plant

Entrance and jetty-channel hopper campaign

Named party
Padre Island
Status
Confirmed
Source position
The Coast Guard navigation notice names Padre Island as the dredge for the October-November 2024 campaign; Great Lakes lists the vessel as a 3,600-cubic-yard trailing suction hopper dredge. Source
Survey support

On-scene survey coverage

Named party
East River and Laguna
Status
Confirmed
Source position
The Coast Guard notice names both vessels on scene but does not establish ownership, employer or lower-tier contract relationship. Source
Beneficial-use route

South Padre Island beach placement

Named party
Great Lakes and USACE
Status
Confirmed
Source position
Great Lakes describes nearby-beach beneficial reuse, and the Coast Guard notice records pumping through 3,550 feet of submerged line to the designated beach placement area. Source
Placement-area change

DMPA No. 2 and No. 3 station limits

Named party
USACE and Great Lakes
Status
Confirmed
Source position
A00001 shifted the two placement-area limits south one day after the notice-to-proceed modification. Source
Final quantity adjustment

P00002 contract CLIN reconciliation

Named party
USACE and Great Lakes
Status
Confirmed
Source position
The 23 April 2025 supplemental agreement deobligated USD 1,342,725.65 and reduced the current obligation to USD 7,456,174.35. Source
Lower-tier supply chain

Survey, environmental, beach-placement and marine-support services

Named party
Undisclosed lower tiers
Status
Undisclosed
Source position
USAspending reports an individual subcontracting plan and zero subaward actions. The named support vessels do not by themselves identify a subcontractor. Source
Completion and acceptance

Final measured quantity, beach acceptance and closeout

Named party
USACE Galveston District and Great Lakes
Status
Not evidenced
Source position
The operating window and final-quantity adjustment do not publish accepted cubic yards, post-dredge acceptance, final beach profile, completion certificate or certified final account.

Project timeline

Material developments

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

Open this project in the Change Log

USACE records the final quantity adjustment

P00002 reconciled the contract CLIN quantities and deobligated USD 1,342,725.65, reducing the current federal obligation from USD 8,798,900 to USD 7,456,174.35.

Source

Placement-area limits move south

A00001 relocated DMPA 2 to stations 233+00-263+00 and DMPA 3 to stations 263+00-273+00 without changing the recorded federal obligation.

Source

USACE issues notice to proceed

P00001 formally issued notice to proceed one day after the Coast Guard's stated field-start date, connecting the federal award to mobilisation.

Source

Padre Island enters the published operating window

The Coast Guard recorded Padre Island, East River and Laguna on 24-hour operations through 16 November, with beach placement supplied through submerged line.

Source

Great Lakes publishes the USD 8.8 million package

The contractor identified the channel-maintenance purpose, nearby-beach beneficial reuse route and expected fourth-quarter 2024 delivery window for the package.

Source

USACE signs the firm-fixed-price award

The full-and-open sealed bid drew two offers and initially obligated USD 8,798,900 to Great Lakes under a firm-fixed-price contract.

Source

Evidence gap

What remains unverified

Outstanding evidence

  • Final CLIN quantities behind the USD 1.343 million deobligation
  • Contract-specific pre- and post-dredge hydrographic surveys
  • Beach-placement quantity, profile and acceptance
  • Completion certificate, demobilisation and owner acceptance
  • Final payment and federal contract closeout
  • Ownership or contractual role of East River and Laguna
  • Reported subawards and named environmental or marine-support lower tiers
  • Separation from Callan's channel-deepening and Rio Grande LNG packages

Related records 3

Reporting status

Delivery, confirmed confidence

Last checked 6 August 2026 across 9 cited sources. The dated timeline above carries the project events.

Last checked 6 August 2026 Cited sources 9

Sources and related records

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Source collections

Project sources 9