The Department of Defense, specifically the Army, is seeking to procure box culvert bridge materials for modernization and repair work at the McAlester Army Ammunition Plant in Oklahoma. The procurement requires the delivery of six sets of pre-engineered box culverts, each designed to accommodate an E-80 train design load, with specific dimensions of 16 feet in span, 8 feet in rise, and 78 feet in length, along with detailed specifications for wall, floor, and ceiling thicknesses. This project is crucial for maintaining infrastructure integrity and ensuring operational efficiency at the facility. Interested small businesses must submit their bids via email to the primary contact, Mackenzie Helgerson, by the closing date of December 22, 2025, and must be registered in the System for Award Management (SAM) to be eligible for consideration.

https://api.sam.gov/prod/opportunities/v1/noticedesc?noticeid=a42be02171fa499ba88851c0e6235896

Total Small Business Set-Aside (FAR 19.5)

Box Culverts

B08- Solicitation W519TC-26-Q-A028.pdf

Box Culvert Questions and Answers from Vendors.xlsx

This document addresses questions regarding pre-engineered box culverts for a government project, focusing on design specifications, loading criteria, and delivery. Key details include a required 16ft span, 8ft rise, and 78ft length (without end sections), with 1ft wall, floor, and ceiling thickness, and 1ft chamfers. All three structures must accommodate an E-80 train design load. While the reinforcing schedule varies by manufacturer and is not part of the current design, detailed drawings have been added to the SAM posting. The project requires six sets of identical culverts, with delivery needed as soon as possible, despite an initial date of January 30, 2026. The soil cover will be pre-provided ballast. Specific connector details between culvert sections are manufacturer-dependent and not part of the design.

Drawing 1.pdf

This government file, "REROUTE AREA ACCESS ROADS 57SH MAGAZINE GROUP," dated December 3, 2025, details a design development project at McAlester Army Ammunition Plant in McAlester, OK. The project, identified by drawing number 2024-004, involves rerouting access roads to the 57SH Magazine Group. The document includes plan and profile views with a scale of 1"=5'. General notes specify that culvert section connections vary by manufacturer, culvert sections are drawn in 6-foot increments based on prior quotes, and wingwalls are designed according to ODOT standard plans, but will differ based on manufacturer-provided end sections. The project is managed by the Operations & Maintenance Division, Directorate of Engineering & Public Works, with D. Lenox listed as both drawn by and checked by.

1. The McAlester Army Ammunition Plant (MCAAP) seeks to procure box culvert bridge materials for modernization and repair work.

2. See attached SF1449 Solicitation for exact requirements. FOB Destination McAlester Ammunition Plant, McAlester OK.

Note: Every item listed shall be accounted for in the offeror's bid submission for it to be considered.

3. BID SUBMISSIONS ONLY VIA EMAIL: mackenzie.a.helgerson.civ@army.mil. Any changes to the solicitation shall also be posted to this web site and it is the contractor's responsibility to check sity daily for any posted changes. All contractors who provide goods/services to the DoD must have a current active registration at System for Award Management (SAM) - https://www.sam.gov. THIS SOLICITATION IS POSTED TO SAM.GOV, ATTACHED SF1449 WITH COMPLETE DETAILS.

Box Culvert Bridge Material for Modernization and Repair Work

\*\*Updates: Included questions and answers excel document to SAM posting attachments. Attached drawing document.  Also updated the solicitation closing date to 22 December 2025.\*\*

1. The McAlester Army Ammunition Plant (MCAAP) seeks to procure box culvert bridge materials for modernization and repair work.

2. See attached SF1449 Solicitation for exact requirements. FOB Destination McAlester Ammunition Plant, McAlester OK.

Note: Every item listed shall be accounted for in the offeror's bid submission for it to be considered.

3. BID SUBMISSIONS ONLY VIA EMAIL: mackenzie.a.helgerson.civ@army.mil. Any changes to the solicitation shall also be posted to this web site and it is the contractor's responsibility to check sity daily for any posted changes. All contractors who provide goods/services to the DoD must have a current active registration at System for Award Management (SAM) - https://www.sam.gov. THIS SOLICITATION IS POSTED TO SAM.GOV, ATTACHED SF1449 WITH COMPLETE DETAILS.

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