Project record

New Haven Harbor improvement dredging

Participation
Awarded
Participation checked

USACE DQM lists W912WJ26CA017 as active from 24 October 2026, naming Great Lakes and GL 58, GL 67 and GL 68.

Participation source

USACE DQM lists New Haven Harbor improvement dredging as active from 24 October 2026, under Great Lakes Dredge & Dock contract W912WJ26CA017, with plant GL 58, GL 67 and GL 68. The August award announcement records USD 68.8692 million awarded and obligated, while SAM gives USD 69.4692 million for the base and all options. Ordinary material, habitat sand and rock use different priced placement routes.

New Haven dredging bid: Great Lakes prices season-one mobilisation and demobilisation at USD 3.75 million and season two at USD 7.989 million, with ordinary-material, sand and rock placement routes separately identified.

IMWO original calculation and graphic

Location

United States / Americas

Segment

Dredging and waterways

Phase

Construction / Confirmed

Last checked

28 October 2026

Coverage

Related sectors

Dredging and waterways 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, New England District, with Connecticut Port Authority as non-federal sponsor
Delivery parties
Great Lakes Dredge & Dock Co, LLC - W912WJ26CA017 awarded 20 August 2026
Contract route
Unrestricted IFB W912WJ26BA012; four bids opened 17 July 2026; contract W912WJ26CA017 awarded to Great Lakes on 20 August; SAM award notice published 15 September.
Execution window
DQM records a 24 October 2026 start. The 24 August federal announcement gives estimated completion on 31 March 2028. The July bid schedule prices mobilisation and demobilisation for two seasons and coordination-zone dredging by 31 December 2026. The executed programme governs the field calendar.
Works package
Deepen the channel, manoeuvring area and turning basin from -35 to -40 feet MLLW; widen the entrance channel from 500 to 600 feet, the inner main channel from 400 to 500 feet and the bend near the East Breakwater from 560 to 800 feet; lengthen the turning basin; remove ordinary material and rock; transport material by scow to defined placement and beneficial-use sites
Marine interfaces
Mechanical dredging and scow transport in Connecticut's busiest port, hard-rock removal, shallow access to local placement sites, Cross Sound Cable coordination, active terminal traffic, seasonal environmental windows and multibeam acceptance surveys
Commercial evidence boundary
Great Lakes' USD 68.213 million base plus USD 656,200 of coordination dredging options equals the USD 68.8692 million announced award obligation. Sixteen work-delay days priced at USD 37,500 add USD 600,000 to reach SAM's USD 69.4692 million base-and-all-options value. This is an exact arithmetic match to bid lines, with exercised options and payment triggers requiring the executed award schedule. Rock drilling, blasting, dredging and reef placement total USD 13.86 million at the abstract's estimated quantity.

Project timeline

Material developments

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

Open this project in the Change Log

DQM records the start of active improvement dredging

The current USACE active-job entry lists Great Lakes, GL 58, GL 67 and GL 68 against W912WJ26CA017 and a 24 October start. Section quantities, placement receipts and acceptance follow in their own records.

Source

SAM published the separate Great Lakes award notice

The award record names Great Lakes and gives USD 69.4692 million for the base and all options under W912WJ26CA017, awarded 20 August.

Source

Great Lakes received the improvement-dredging award

The federal announcement records USD 68.8692 million awarded and obligated, four offers and estimated completion on 31 March 2028. Coordination and delay-option amounts retain their separate bid bases.

Source

USACE published four opened bids

The official abstract records Great Lakes at the lowest submitted total of USD 69,469,200 against a USD 63,642,050.63 government estimate. The result moves the package into evaluation but does not identify an awarded contractor or accepted contract value.

Source

The amended IFB closed for bids

Amendment 0007 retained the 17 July response deadline. The procurement moved into post-bid review without an award, accepted contract value or notice to proceed.

Source

USACE and Connecticut executed the project partnership

The construction phase was formally launched and the owner set a fall 2026 to spring 2028 expectation, without naming a works contractor.

Source

Industry Day exposed the delivery and placement constraints

USACE set out the channel geometry, seasonal windows, material classes, placement routes, rock and survey requirements while retaining quantity change risk after maintenance dredging.

Source

Evidence gap

What remains unverified

Outstanding evidence

  • Executed award schedule and coordination-option selection
  • Executed NTP and accepted two-season programme
  • Current pre-dredge survey and released section quantities
  • Roles and actual utilisation of the DQM-listed plant
  • Receiving-site access, acceptance and material receipts
  • Coordination-zone release and work-delay payment trigger
  • Multibeam section acceptance and seasonal corrections
  • Certified amounts, actual payments and operating release

Related records 4

Reporting status

Project phase
Construction
Evidence confidence
Confirmed
Last checked
28 October 2026
Cited sources
9

Sources and related records

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Source collections

Project sources 9