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Triadelphia - B9 Piping Project — Modification of Equipment- Construction and Building Materials

Issued by LABOR, DEPARTMENT OF · OFFICE OF THE ASSISTANT SECRETARY FOR ADMINISTRATION AND MANAGEMENT · DOL - CAS DIVISION 4 PROCUREMENT · via SAM.gov — US federal contract opportunities

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Published
2 Sept 2026
Closes
8 Sept 2026, 21:00 UTC
Reference
1605C4-26-R-00033
Location
WV, United States
Sector
Construction & Infrastructure

Details

LABOR, DEPARTMENT OF · OFFICE OF THE ASSISTANT SECRETARY FOR ADMINISTRATION AND MANAGEMENT · DOL - CAS DIVISION 4 PROCUREMENT is soliciting Triadelphia - B9 Piping Project — Modification of Equipment- Construction and Building Materials. Solicitation number 1605C4-26-R-00033. Classified under NAICS 236220 — Commercial and Institutional Building Construction. Product/service code K056 — MODIFICATION OF EQUIPMENT- CONSTRUCTION AND BUILDING MATERIALS. Place of performance: WV, USA. Responses are due by 08 September 2026 21:00 UTC. Posted on SAM.gov, the US federal contract opportunities system; registration is required to bid.

Contractor will provide all personnel, equipment, tools, materials, supervision, and other items and non-personal services necessary to demolish/dispose of and install new piping (ducting) in Building 9 ventilation system at MSHA Approval and Certification Center.

Context for bidders

We hold 2 notices from LABOR, DEPARTMENT OF · OFFICE OF THE ASSISTANT SECRETARY FOR ADMINISTRATION AND MANAGEMENT · DOL - CAS DIVISION 4 PROCUREMENT, going back to September 2026 — 2 of them still open. There are 516 open Construction & Infrastructure tenders in United States. This one closes in 2 days.

Before you bid on this tender

A quick checklist to help you decide whether to bid and prepare a compliant submission for this construction & infrastructure opportunity. Always verify the details on the official source.

  • Confirm the exact closing date and time (and time zone) on the official portal — deadlines are strict and can be revised by a corrigendum.
  • Read the full notice and every attached document, including the scope, specifications and any bill of quantities or terms of reference.
  • Check the eligibility criteria — prior similar experience, annual turnover, certifications and registrations — and make sure you qualify before investing effort.
  • Prepare any earnest-money deposit (EMD) or bid security and the required formats early; missing or wrongly-formatted documents are a common cause of rejection.
  • Note how bids must be submitted (online or physical), in what format, and whether a digital signature or portal registration is required.
  • Watch for corrigenda and clarifications right up to the deadline — requirements and dates can change.
Common bidding mistakes to avoid →Writing a winning proposal

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