FY26 Charleston Harbor Lower Harbor Maintenance Dredging

Closed Solicitation Posted

Solicitation number
W912HP26BA005
Agency
Responses due
Set-aside
No set-aside

Opportunity facts

Place of performance
Charleston, SC 29403

Notice details come from SAM.gov. Updated .

About this opportunity

The Department of the Army Corps of Engineers Charleston Engineering District seeks maintenance dredging of approximately 4,287,000 cubic yards (base) and 350,000 cubic yards (option) of unclassified material from Charleston Lower Harbor for deposit at the Charleston Ocean Dredged Material Disposal Site, with proposals due July 14, 2026.

Place of performance is Charleston and Berkeley Counties, South Carolina. The work includes compliance with the Endangered Species Act and Marine Mammals Protection Act. The estimated magnitude is between $25 million and $40 million. The NAICS code is 237990, Other Heavy and Civil Engineering Construction, with an SBA small-business size standard of $37 million. The PSC code is Z1KF, Maintenance of Dredging Facilities. No set-aside applies. Amendment 02 was posted July 9, 2026.

Notice text

5 versions

Update #5 · Latest ·

DESCRIPTION OF WORK: The work consists of maintenance dredging of approximately 4,287,000 cubic yards (BASE), and 350,000 cy (OPTION) of unclassified material from the Charleston Lower Harbor which shall be deposited in the Charleston Ocean Dredged Material Disposal Site (ODMDS). The work is located in Charleston and Berkeley Counties, South Carolina. The work includes complying with the requirements of the Endangered Species Act and Marine Mammals Protection Act. MAGNITUDE OF WORK is estimated between $25,000,000 TO $40,000,000. North American Industry Classification System (NAICS) Code: 237990 Other Heavy and Civil Engineering Construction with an SBA Small Business Size of $37,000,000. The Solicitation is hereby posted as of 11 June 2026. Amendment 01 is hereby posted as of 30 June 2026. Amendment 02 is hereby posted as of 9 July 2026. Amendment 03 is hereby posted as of 9 July 2025. Amendment 04 is hereby posted as of 10 July 2025.

Update #4 ·

DESCRIPTION OF WORK: The work consists of maintenance dredging of approximately 4,287,000 cubic yards (BASE), and 350,000 cy (OPTION) of unclassified material from the Charleston Lower Harbor which shall be deposited in the Charleston Ocean Dredged Material Disposal Site (ODMDS). The work is located in Charleston and Berkeley Counties, South Carolina. The work includes complying with the requirements of the Endangered Species Act and Marine Mammals Protection Act. . MAGNITUDE OF WORK is estimated between $25,000,000 TO $40,000,000. North American Industry Classification System (NAICS) Code: 237990 Other Heavy and Civil Engineering Construction with an SBA Small Business Size of $37,000,000. The Solicitation is hereby posted as of 11 June 2026. Amendment 01 is hereby posted as of 30 June 2026. Amendment 02 is hereby posted as of 9 July 2026. Amendment 03 is hereby posted as of 9 July 2025.

Update #3 ·

DESCRIPTION OF WORK: The work consists of maintenance dredging of approximately 4,287,000 cubic yards (BASE), and 350,000 cy (OPTION) of unclassified material from the Charleston Lower Harbor which shall be deposited in the Charleston Ocean Dredged Material Disposal Site (ODMDS). The work is located in Charleston and Berkeley Counties, South Carolina. The work includes complying with the requirements of the Endangered Species Act and Marine Mammals Protection Act. . MAGNITUDE OF WORK is estimated between $25,000,000 TO $40,000,000. North American Industry Classification System (NAICS) Code: 237990 Other Heavy and Civil Engineering Construction with an SBA Small Business Size of $37,000,000. The Solicitation is hereby posted as of 11 June 2026. Amendment 01 is hereby posted as of 30 June 2026. Amendment 02 is hereby posted as of 9 July 2026.

Update #2 ·

DESCRIPTION OF WORK: The work consists of maintenance dredging of approximately 3,298,000 cubic yards (BASE), and 1,180,000 cy (OPTION) of unclassified material from the Charleston Lower Harbor which shall be deposited in the Charleston Ocean Dredged Material Disposal Site (ODMDS). The work is located in Charleston and Berkeley Counties, South Carolina. The work includes complying with the requirements of the Endangered Species Act and Marine Mammals Protection Act. . MAGNITUDE OF WORK is estimated between $25,000,000 TO $40,000,000. North American Industry Classification System (NAICS) Code: 237990 Other Heavy and Civil Engineering Construction with an SBA Small Business Size of $37,000,000.The Solicitation is hereby posted as of 11 June 2026. Amendment 01 is hereby posted as of 30 June 2026.

Update #1 ·

DESCRIPTION OF WORK: The work consists of maintenance dredging of approximately 3,298,000 cubic yards (BASE), and 1,180,000 cy (OPTION) of unclassified material from the Charleston Lower Harbor which shall be deposited in the Charleston Ocean Dredged Material Disposal Site (ODMDS). The work is located in Charleston and Berkeley Counties, South Carolina. The work includes complying with the requirements of the Endangered Species Act and Marine Mammals Protection Act. . MAGNITUDE OF WORK is estimated between $25,000,000 TO $40,000,000. North American Industry Classification System (NAICS) Code: 237990 Other Heavy and Civil Engineering Construction with an SBA Small Business Size of $37,000,000.The Solicitation is hereby posted as of 11 June 2026.

Notice history

Notice Type Posted
This notice Latest solicitation Solicitation
FY26 Charleston Harbor Lower Harbor Maintenance Dredging Original Pre-Solicitation

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