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Prestress/Post-Tensioning Strand Systems

VSL

S06-4 (using 1/2" strand)

Last edit date: 3/20/2024

GENERAL
Bar or Tendon Size Strand Diamter Ultimate (kips) Concrete Strength(psi) PJack (kips)
4 1/2" 165.2 N/A 123.9

WEDGES
Wedges Length Material Wedge Parts Wedge Angle Wedge Inside DiameterBABA Act Information*
1.500" AISI 11L172 7° 10' Unconfirmed

ANCHOR HEADS
Anchor Heads Size Material Authorization DateBABA Act Information*
11.0" x 4 1/2" x 2.968" ASTM A536 Gr 80-55-063/26/1993Unconfirmed
Wedge hole angle: 7°
Wedge hole diameter: 1.150"
Strand hole diameter: 0.720"

BEARING PLATES
Bearing Plates Size Material Authorization DateBABA Act Information*
There are no bearing plate components for this system at this time
Bearing hole diameter:
Spiral size and turns: none

TRUMPETS
Trumpets Size Material Authorization DateBABA Act Information*
8.12" High density polyethylene6/3/1988Unconfirmed

DUCTS
Ducts Size Material Authorization DateBABA Act Information*
There are no duct components for this system at this time

SPIRAL
-

Caltrans contact: Jim Ma, Concrete Committee Chair, jim.ma@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