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Post-Tensioning High Strength Bar Systems

Last edit date: 6/8/2026

ASTM A722 Grade 150ksi

Supplier Bar Size(Nominal) System Name Authorization Number Expiration DateBABA Act Information*
DYWIDAG-Systems International1" 1" Ø (26mm) DYWIDAG Threadbar® Grade 150 HS070114 8/23/2030Unconfirmed
1-1/4" 1-1/4" Ø (32mm) DYWIDAG Threadbar® Grade 150 HS070314 6/4/2031Unconfirmed
1-3/4" 1-3/4" Ø (46mm) DYWIDAG Cold-Rolled Threadbar® Grade 150 HS031014 Unconfirmed
1-3/4" 1-3/4" Ø (46mm) DYWIDAG Hot-Rolled Threadbar® Grade 150 HS030219 Unconfirmed
1-3/8" 1-3/8" Ø (36mm) DYWIDAG Threadbar® Grade 150 HS070714 10/17/2030Unconfirmed
2-1/2" 2-1/2" Ø (66mm) DYWIDAG Threadbar® Grade 150 HS070914 Unconfirmed
3" 3" Ø (75mm) DYWIDAG Threadbar® Grade 150 HS070814 Unconfirmed
Schwager Davis Incorporated1.38" SDI 1.38" Multi-Plane Bar Anchorage System (3,500psi) HS011614 Unconfirmed
1.75" SDI 1.75" Multi-Plane Bar Anchorage System (3,500psi) HS052814 Unconfirmed
Williams Form Engineering Corporation1" William Form 1" Threaded 150 ksi Bar System HS061424 6/14/2029Unconfirmed
1-1/4" William Form 1-1/4" Threaded 150 ksi Bar System HS021926 2/19/2031Unconfirmed
1-3/4" Williams Form 1-3/4 inch Threaded 150 ksi Bar System HS101025 10/10/2030Unconfirmed
1-3/8" William Form 1-3/8" Threaded 150 ksi Bar System HS021726 2/17/2031Unconfirmed

Notes:

  1. A unique Authorization Number has been assigned to each bar system. The supplier shall inform the California Department of Transportation ("Caltrans") of any revisions made to component drawings which would necessitate issuance of a new Authorization Number, otherwise Caltrans may revoke the prequalification of a bar system and remove it from this list.
  2. Caltrans takes no position regarding the validity of any intellectual property rights asserted in connection with any system on this list. Users of this list are solely responsible for determining the validity of any such intellectual property rights.
  3. This table was prepared to provide a reference source for prestressing bar systems currently authorized for use by Caltrans. Caltrans assumes no liability or responsibility for the accuracy or validity of this information if used by other entities.

Caltrans contact: Structural Materials Testing Lab, smtl@dot.ca.gov

*As attested to by the supplier as of April 14, 2026 per definition in 2 CFR 184 and 23 CFR 635.410. Stakeholders should use this information in conjunction with corresponding Caltrans special provision section 6-1.04 to understand applicable requirement for the project.

The California Department of Transportation (Caltrans) is implementing statutory changes required by the Bipartisan Infrastructure Law -Build America, Buy America Act (BABA), as outlined in 2 CFR 184 and 23 CFR 635.410.

https://www.fhwa.dot.gov/construction/cqit/buyam.cfm