Multi-Plate Union


  • MULTI-PLATE-Overview


    Download the overview brochure

  • Structures-Product-Guide-web

    Bridges and Structures

    Download the bridges and structures product guide

  • Emergency-Bridge-Replacement-overview

    Emergency Bridge Replacement

    Download the emergency bridge replacement guide

  • reline-rehab_overview

    Reline & Rehabilitation

    Download the reline & rehabilitation overview

  • Structures-Reference-Guide

    Structures Reference Guide

    Download the structures reference guide

Technical Guides

  • Spec Sheet

    Download the spec sheet

  • Plate Detail Sheet

    Download the plate detail sheet

  • Structural Plate Galvanized Steel Key-Hole

    Download the Structural Plate Galvanized Steel Key-Hole Slot Specification

  • Strucutural Plate Seam Sealant Tape

    Download the Structural Plate Seam Sealant Tape Specification


Developed over 75 years ago, MULTI-PLATE is available in spans to 26 feet, and can be arranged and curved to make a variety of shapes including pipe, pipe-arch, horizontal and vertical ellipses, arches and underpasses.


  • Spans to 26 ft
  • Variety of shapes, sizes and end treatments
    for any given application
  • Fast, easy, low cost installation
  • Significant load carrying capacity
  • Extensive technical support
  • Economical solution


  • Buried Bridge Structure - Reduces maintenance costs and lowers life cycle costs as there are no bridge deck or joints at the deck/roadway interface.
  • Modular Bridge System - Rapid installation results in reduced overall project costs, delays and detours.
  • Designed “Site Specific” - Meets your site needs in full compliance with AASHTO, ASTM & AREMA design standards for highway and railway use.
  • Easy Site-Adaptability - Flexible layout options to fit within the right-of-way – curve the structure with a stream or adjust for vertical and horizontal clearance requirements.
Multi-Plate Conveyor