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Prestress/Post-Tensioning Strand Systems

VSL

CS 5-31 (Revoke)

Last edit date: 3/20/2024

GENERAL
Bar or Tendon Size Strand Diamter Ultimate (kips) Concrete Strength(psi) PJack (kips)
31 1/2" 1280 N/A 960

WEDGES
Wedges Length Material Wedge Parts Wedge Angle Wedge Inside DiameterBABA Act Information*
1.47" AISI 11L17 7° 10' ± 5' Unconfirmed

ANCHOR HEADS
Anchor Heads Size Material Authorization DateBABA Act Information*
9.00"Ø x 3 1/4" ASTM A897-90 Gr 125-80-10 (REVOKE)3/28/1994Unconfirmed
Wedge hole angle: 7°
Wedge hole diameter: 1.035"
Strand hole diameter: 0.562"

BEARING PLATES
Bearing Plates Size Material Authorization DateBABA Act Information*
12.60" Ø x 2.05"(Metal) ASTM -A536 Gr 80-55-063/28/1994Unconfirmed
Total with concrete 3.94" REVOKE for this anchorhead4/6/1995Unconfirmed
Bearing hole diameter: 6.89"
Spiral size and turns: #5 7 turns

TRUMPETS
Trumpets Size Material Authorization DateBABA Act Information*
22.44" P.E3/28/1994Unconfirmed

DUCTS
Ducts Size Material Authorization DateBABA Act Information*
4 1/8" O.D. 3/28/1994Unconfirmed

SPIRAL
#5- 18"O.D. 2" Pitch, 7 turn, Gr 60 for CS5-31

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