# SAM #N3220526P5242

Engineering, fabrication, and diver support for USNS Hershel Woody Williams main seawater cofferdam repairs

**Buyer:** MSC Norfolk
**Posted:** September 17, 2026
**Identifier:** N3220526P5242
**NAICS:** 336611

This opportunity is for specialized marine engineering, fabrication, and diver support services to repair the central seawater seachest cofferdams on the USNS Hershel Woody Williams.
- Buyer: U.S. Navy, Military Sealift Command Headquarters Norfolk
- Scope: Engineering, fabrication, and diver support for installation and removal of main seawater cofferdams
  - Supports repairs to internal ship systems that require cofferdam access
- Urgency: Work is scheduled from September 9 to September 30, 2026, to avoid mission delays
- Vendor: Seaward Marine Services, LLC is identified as the exclusive provider due to prior design, fabrication, and approved procedures
- No specific OEMs, part numbers, or product quantities are listed
- Requirements: Specialized marine engineering and diver operations for naval vessel repairs
- Competition: Limited due to proprietary procedures and prior work by Seaward Marine Services, LLC

### Description

<p>The purpose of this acquisition is to provide engineering, fabrication and diver support for central seawater seachest cofferdam installation and removal supporting repairs for the USNS HERSHEL WOODY WILLIAMS.&nbsp;</p>

[View original listing](https://sam.gov/opp/15033d73979d44608720eddbc580a9eb/view)