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Authorized Facility Audit Lists

Last edit date: 12/3/2024

Steel Pipe Piling
FabricatorClassExpiration
Atlas Tube - Blytheville, Blytheville, AR

R

10/2026
Atlas Tube - Chicago, Chicago, IL

R

4/2024
Bull Moose Tube , Sinton, TX

R**

12/2024
Jindal Pipe USA, Incorporated, Baytown, TX

R**

4/2025
Jindal Tubular (PSL North America), Bay Saint Louis, MS

N, R

2/2026
JSW Steel, Incorporated, Baytown, TX Na, Rb7/2017
Northwest Pipe Company, Adelanto, CA N, R6/2019
Nucor Skyline, Longview, WA

N, R

1/2025
Nucor Skyline (formerly Skyline Steel LLC), Iuka, MS

N, R

11/2026
Nucor Tubular Products - Decatur, Decatur, AL

R

12/2024
Paragon Industries, Incorporated, Sapulpa, OK

Na**, Rb**, R**

9/2026
T Bailey, Incorporated, Anacortes, WA

N, R

6/2026
Trinity Products, Incorporated, Saint Charles, MO

N, R

12/2024
United Spiral Pipe, Pittsburg, CA N, R12/2014
Universal Industrial Sales, Inc., Lindon, UT N, R6/2020
West Coast Spiral Pipe, Rialto, CA

R

3/2025
XKT Engineering, Incorporated, Mare Island, CA

N, R

12/2025

Contact the Fabricator to determine the range of pipe sizes they are able to produce.

Note: This table does not include Authorized Steel Pipe Piling that has been witnessed by the Engineer or a Representative of the Engineer.

Na -  Class N Facility Audit limited to API Specification 5L

Rb -  Class R Facility Audit limited to API Specification 5L

** Splice weld (butt welded seams subsequently formed) shall be omitted

Modification to the process, materials, or procedures documented in the authorized audit may result in immediate termination of the fabricator’s audit. Fabricators are required to submit and receive authorization of amendments to audit documentation prior to implementation of modifications.

The Authorized Facility Audit List is intended to be part of the Department’s Quality Assurance program. When an entity other than the Department is performing quality verification acceptance activities, and per Deputy Directive 23 Revision 1(DD-23-R1), this entity is responsible for its own quality assurance program to ensure project components comply with Caltrans policies, standards, procedures, and best practices.

Caltrans contact: Dominika Ercolini, (916) 849-0989, dominika.ercolini@dot.ca.gov