# FY26 Charleston Harbor Lower Harbor Maintenance Dredging

Canonical: https://abierto.us/opportunities/w912hp26ba005

- Solicitation number: W912HP26BA005
- Notice type: Solicitation
- Status: Closed. Deadline was July 14, 2026 at 12:00 PM EDT
- Department: Department of the Army
- Agency: Department of the Army
- Contracting office: W074 Endist Charleston (W912HP)
- NAICS: 237990 Other Heavy and Civil Engineering Construction
- Product or service code: Z1KF Maintenance Of Dredging Facilities
- First posted: June 30, 2026
- Last posted: July 10, 2026
- SAM.gov: https://sam.gov/workspace/contract/opp/78e8358d7e2a452492f6d9adfbb8fd0a/view

## Description

**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.

## Publications

- June 30, 2026: Solicitation, due July 14, 2026 at 12:00 PM EDT. Notice e1feb32fb76b457ab1a921f04e6653bd. https://sam.gov/workspace/contract/opp/e1feb32fb76b457ab1a921f04e6653bd/view
- July 9, 2026: Solicitation, due July 14, 2026 at 12:00 PM EDT. Notice 7c1c022558c748b8965a2cfe351732c0. https://sam.gov/workspace/contract/opp/7c1c022558c748b8965a2cfe351732c0/view
- July 9, 2026: Solicitation, due July 14, 2026 at 12:00 PM EDT. Notice 943d9a6349bc4030981ab03b7912e871. https://sam.gov/workspace/contract/opp/943d9a6349bc4030981ab03b7912e871/view
- July 10, 2026: Solicitation, due July 14, 2026 at 12:00 PM EDT. Notice 78e8358d7e2a452492f6d9adfbb8fd0a. https://sam.gov/workspace/contract/opp/78e8358d7e2a452492f6d9adfbb8fd0a/view

## Points of contact

- Evelyn HALLIBURTON, EVELYN.I.HALLIBURTON@USACE.ARMY.MIL, 8433298208
- Addison Layfield, addison.g.layfield@usace.army.mil, 8433298194

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Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/w912hp26ba005.