Project record

Moss Landing Harbor jetty repair and maintenance dredging

Conceptual elevated view of Moss Landing Harbor maintenance dredging and jetty repair at the twin rock-armoured entrance channel

IMWO artist's impression of the published Moss Landing Harbor jetty repair and maintenance dredging scope

USACE San Francisco awarded Ahtna Infrastructure & Technologies LLC contract W912P725CA007 for Moss Landing Harbor jetty repair and maintenance dredging. USAspending reports USD 16,037,425 in current obligations, a 30 May 2025 start and a 23 January 2026 current or potential end. The US Coast Guard identified an August 2025 dredging start, a September jetty-repair start and four project vessels, while USACE lists post-dredge surveys from August and September. Those records establish award and physical delivery, not the final dredged quantity, structural acceptance, practical completion or final account.

Project signal

Construction in United States

Current status Ahtna Infrastructure & Technologies held the USD 16,037,425 current-obligation contract for Moss Landing Harbor dredging and jetty repair; the US Coast Guard published 2025 field-work windows and USACE published August-September post-dredge surveys, but the 23 January 2026 contract end does not establish final quantity, jetty acceptance, completion or final account Source confidence Confirmed

Location

United States / Americas

Segment

Breakwater armour repair, access dredging and nearshore placement

Status

Ahtna Infrastructure & Technologies held the USD 16,037,425 current-obligation contract for Moss Landing Harbor dredging and jetty repair; the US Coast Guard published 2025 field-work windows and USACE published August-September post-dredge surveys, but the 23 January 2026 contract end does not establish final quantity, jetty acceptance, completion or final account / Confirmed

Last checked

5 August 2026

Coverage

Related sectors

Breakwater armour repair, access dredging and nearshore placement 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, San Francisco District, with Moss Landing Harbor District as non-federal sponsor
Delivery parties
Ahtna Infrastructure & Technologies LLC - prime under W912P725CA007, Dredging, rock supply, placement, diving, survey and other lower-tier parties - not identified in the cited public records; USAspending reports no subaward actions
Contract route
USAspending records a firm-fixed-price 8(a) sole-source award under solicitation W912P725R0011, with one offer received and statutory authority for a single source. The record classifies the work under NAICS 237990 and PSC Y1KF, records consolidated requirements with a written determination, and says no subcontracting plan was required.
Execution window
USAspending records a 30 May 2025 period start and a 23 January 2026 current or potential end. The US Coast Guard notice scheduled dredging from 19 August 2025 and jetty repair from 8 September, both through 23 January 2026. These are contract and navigation-notice dates, not evidence of completed quantities, accepted armour, demobilisation or owner closeout.
Works package
USACE combines maintenance dredging of the federally maintained entrance and lagoon channels with repair of the north and south jetties. The official harbour baseline describes a 200-foot entrance channel, a 100-foot lagoon channel, a maintained depth of minus 15 feet MLLW and a combined channel length of about 3,200 feet. Planning sources described cutterhead or clamshell dredging, pipeline or barge handling and placement at SF-12, but the public award record does not publish a final bill of quantities, actual volume, rock tonnage or accepted as-built profile.
Marine interfaces
The work joins navigation-channel access, dredge production and transport, survey control, nearshore placement, rock-armour repair and live harbour navigation. The US Coast Guard named the Douglas work boat, Robert L split-hull hopper barge, Bearcat tug and Seal survey or crew skiff. Vessel naming is project-specific operational evidence; it does not identify vessel ownership, every plant item, subcontract package or final production rate.
Commercial evidence boundary
USD 16,037,425 is the current official obligation, not a certified final account or paid amount. USACE planning material carried a USD 5 million to USD 10 million range and two different planning quantities, 50,000 and 60,000 cubic yards. Those pre-award estimates cannot be presented as the award value or achieved quantity. USAspending reports zero subaward actions, which means no subawards are reported there, not that no subcontracting occurred.

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.

Owner and sponsor

Moss Landing Harbor federal navigation project

Named party
USACE San Francisco District and Moss Landing Harbor District
Status
Confirmed
Source position
USACE identifies the federal navigation project and Moss Landing Harbor District as non-federal sponsor. Source
Prime award

W912P725CA007 jetty repair and maintenance dredging

Named party
Ahtna Infrastructure & Technologies LLC
Status
Confirmed
Source position
USAspending identifies Ahtna as recipient and reports USD 16,037,425 in current obligations under the firm-fixed-price award. Source
Dredging plan

Maintenance dredging and SF-12 placement

Named party
USACE San Francisco District
Status
Confirmed
Source position
Separate January and March 2025 planning records carried 60,000 and 50,000 cubic-yard estimates and different schedule assumptions; neither figure is an achieved quantity. Source
Physical dredging

Moss Landing Harbor dredging operations

Named party
Ahtna Infrastructure & Technologies LLC
Status
Confirmed
Source position
The US Coast Guard notice announced dredging from 19 August 2025 through 23 January 2026 and named the Douglas, Robert L, Bearcat and Seal. Source
Jetty repair

North- and south-jetty repairs

Named party
Ahtna Infrastructure & Technologies LLC
Status
Confirmed
Source position
The same navigation notice announced jetty-repair work from 8 September 2025 through 23 January 2026, but does not provide accepted rock quantities or completion certification. Source
Hydrographic evidence

Post-dredge surveys

Named party
USACE San Francisco District
Status
Confirmed
Source position
USACE lists post-dredge surveys dated 28 August and 8 and 12 September 2025. Survey publication is not evidence of overall jetty acceptance or final contract closeout. Source
Subawards and supply chain

Dredging, armour, marine plant, survey and support packages

Named party
Ahtna and undisclosed lower tiers
Status
Undisclosed
Source position
USAspending reports no subaward actions. That field does not prove that no subcontracting or supplier participation occurred. Source
Closeout

Final quantity, jetty acceptance, completion and final account

Named party
USACE San Francisco District and Ahtna
Status
Not evidenced
Source position
The public record contains a contract end date and post-dredge surveys, but no final quantity, structural acceptance, completion certificate or certified final value.

Project timeline

Material developments

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

Open this project in the Change Log

Published contract and navigation-notice window ended

The date is a closeout trigger, not proof of completion, accepted jetty repairs, final dredged quantity or final account.

Source

Latest listed post-dredge survey published

USACE now exposes hydrographic evidence for part of the dredging chain, while final quantity and overall contract acceptance remain open.

Source

Jetty-repair work window commenced

The US Coast Guard notice moved the structural package into an announced field-work window without disclosing repair quantities or acceptance criteria.

Source

Dredging work window commenced

The navigation notice identified physical dredging and four project vessels, strengthening the public record beyond award-stage evidence without establishing final production.

Source

USACE award period began

USAspending records Ahtna as prime, the firm-fixed-price route and the current USD 16,037,425 obligation, while final quantities and value remained open.

Source

Evidence gap

What remains unverified

Outstanding evidence

  • Final dredged volume and SF-12 placement acceptance
  • North- and south-jetty repair limits, rock quantity and as-built profile
  • Survey reconciliation against the minus 15-foot MLLW channel baseline
  • Ahtna delivery team, plant ownership and lower-tier package identities
  • Reported subawards, variations and current-obligation changes
  • Demobilisation, practical completion and owner acceptance
  • Certified final value and payment closeout

Related records 2

Reporting status

Construction, confirmed confidence

Last checked 5 August 2026 across 7 cited sources. The dated timeline above carries the project events.

Last checked 5 August 2026 Cited sources 7

Sources and related records

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Source collections

Project sources 7