Movable Bridges

Primary Discussion Topics | Learning Outcomes/BenefitsRegistration Information | Webinar Outline | Instructor Bio

Sponsored by ASCE Continuing Education and ASCE’s Structural Engineering Institute (SEI)

Upcoming Webinars:

Thursday, November 15, 2012 | 12 Noon – 1 PM Eastern Time  

Andrew W. Herrmann P.E., SECB, F.ASCE 

Each Attendee Earns 1 PDH

“The webinars offered by ASCE are the easiest ones for me to present to groups. I appreciate how consistently organized ASCE webinars are”. – Dana M. Hardy, Executive Secretary City of Oklahoma Utilities Administration

Purpose and Background

This webinar will discuss selection of a particular type of movable bridge with advantages and disadvantages. (Read More)

Primary Discussion Topics

  • Purpose and need for movable bridges
  • Three primary types of movable bridges used today
  • Description of their advantages and disadvantages
  • Modern Movable Bridge concepts

Back to Top

Learning Outcomes/Benefits

  • Be able to discuss the three primary types of Movable Bridges in use today
  • Understand the basic operational characteristics of each Movable Bridge type
  • See actual examples of the three types of Movable Bridges and variations
  • Know the advantages and disadvantages of each Movable Bridge type to aid in selection

Back to Top

Registration Fees*  

$249 Member | $299 Non-Member  

Back To Top

Webinar Outline

  • What is a Movable Bridge
  • Why consider a Movable Bridge
  • Primary Movable Bridge types and their advantages and disadvantages
  • Movable Bridge summary
  • Modern Movable Bridge concepts

Back to Top  

Purpose and Background

Locations of bridge crossings over navigable waters do not always allow high level crossings. Approaches to a bridge may be in an urban area where street level crossings are desirable or there are insufficient approach lengths to allow the elevation for a high level crossing. Movable bridges provide a solution. This webinar will introduce the three common types of movable bridges in use today - the bascule bridge, the vertical lift bridge, and the swing bridge. It will discuss selection of a particular type of movable bridge with advantages and disadvantages. 


Andrew W. Herrmann P.E., SECB, F.ASCE, principal with Hardesty & Hanover Consulting Engineers, serves as President of the American Society of Civil Engineers (ASCE) for 2012. He was the first Chairman and now Chairman Emeritus of Heavy Movable Structures, Inc. an industry group dedicated to movable bridges.

During his 39 years at Hardesty & Hanover, Herrmann has held many positions including structural detailer, structural engineer, project engineer, and associate engineer before becoming managing partner and then a principal. Herrmann’s experience includes design, inspection, rehabilitation, and construction along with managing some of the firm’s major movable bridge projects.

Within ASCE, Herrmann has served as president of the New York City Metropolitan Section, chair of the Technical Administrative Committee on Bridges, director of Region 1, and national treasurer. He served on the Advisory Council for the 2003 and 2005 Report Cards for America’s Infrastructure and chaired the council for the 2009 Report Card. Herrmann has served as a spokesperson for ASCE in many magazine, newspaper, radio and television articles and stories. He has testified before Congress on several topics including infrastructure and bridge inspection. He also appeared in the History Channel documentary ‘The Crumbling of America.’ Along with numerous other volunteer efforts, Herrmann has served as director of St. Mary’s Rehabilitation Center for Children, a member of AREMA’s-Committee 15, Steel Railroad Bridges, and their movable bridge subcommittee.

Herrmann received his bachelor’s degree in civil engineering from Valparaiso University, Indiana, and his master’s degree from the Polytechnic Institute of New York, now POLY-NYU. Herrmann is a registered professional engineer in 29 states. He is a resident of Pittsburgh, PA. 

About Webinars

Back to Top

Primary Discussion Topics | Learning Outcomes/Benefits | Registration Information | Webinar Outline | Instructor Bio