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STRUCTURAL TECHNOLOGIES is the exclusive designer and manufacturer of VSL post-tensioning and construction systems in the United States. VSL systems have a well-earned reputation for their quality, reliability, and durability - and have been used throughout the world since 1956 to build, repair, and strengthen bridges, buildings, tanks, and special structures. For information on VSL products outside of the United States, visit the VSL International website at

Products, Systems, & Services

Post-Tensioning Systems

Our full range of post-tensioning systems - complemented by experienced in-house engineers, detailers and jobsite support staff - will help you meet your project milestones from concept to completion

  • Bonded Multistrand Post-Tensioning
  • Bonded Post-Tensioned Slab Systems
  • Unbonded Monostrand Post-Tensioning
  • Barrier Cable Systems


The VSL Stay Cable System features strands that are individually protected and anchored with fixed or adjustable anchorages.

  • Cable Armor Protection

STRUCTURAL TECHNOLOGIES offers custom engineered systems for contruction.

  • Heavy Lifting with VSL Systems
  • Form Travelers for Segmental Bridge Construction

STRUCTURAL TECHNOLOGIES provides comprehensive services and support for post-tensioning systems – for both new construction, as well as repair of exisitng structures. To ensure project success, our knowledgable staff supports clients throughout design and construction with:

  • Engineering & Design Support
  • Manufacturing & Material Supply
  • Project Coordination
  • Installation Support
  • Equipment Rental

STRUCTURAL TECHNOLOGIES can assist in the development and implementation of value-added repair, strengthening and protection solutions, including:

  • Post-Tensioning Repair &  Modification
  • Tendon Grouting Inspection & Repair
  • Strengthening
  • Concrete Repair