The Main Mission of HMS

…to provide forums for information interchange among bridge owners, Government agencies, designers, contractors, suppliers, and other groups involved in movable bridges and heavy movable structures. This includes both privately owned and publicly owned bridges.

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2018 Biennial Movable Bridge Symposium

October 22 - 25, 2018 at the Renaissance Orlando at SeaWorld® , Orlando, FL.

Symposium Information




  • Abstracts Due – January 12, 2018 
  • Written Papers Due – April 13, 2018 
  • Power Point Presentations Due – July 1, 2018

Questions, Contact Frank Marzella @ 360-943-4139 or

    HMS Technical Paper Presentations cover six disciplines of our industry:

    1. Electrical/Electronic Systems
    2. Ownership/Public Use/Management
    3. Performance/Construction/Maintenance
    4. Fluid Power Systems
    5. Machinery/Mechanisms
    6. Structural Elements

    Over 425 attendees gathered in 2016 for information exchange provided by HMS at the biennial symposium in Tampa, FL.

      Tampa 2016 Slide Show Available for Download


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      Heavy Movable Structures, Inc.

      HMS is a not-for-profit technical organization of volunteers focusing on the heavy civil facilities utilized by or for the public benefit, with emphasis on, but not limited to, movable bridges.

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