Serving on a technical committee is a great way to get involved with HMS, is the way I started with my active involvement. If you think you may be interested in assisting with these duties, please contact the Vice President or one of the committee chairs directly here.

Technical Committee Chairs:

Technical Committee Chairman – Jon Henrichsen (

Fluid Power Systems Chairman – Jim Phillips (

Electrical/Electronic Systems Committee – Rob Moses – (

Machinery /Mechanisms Chairman – Matthew McGuire (

Performance/Construction/Maintenance Chairman – Irvin Lopez (

Structural Elements Chairman – George Patton (

Ownership/Public Use and Management Chairman – Jenny Fu (


Structural Elements




Ownership/Public Use & Management




Fluid Power Systems


Electrical / Electronic Systems

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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