STRUCTURE Archives October 2004

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October 2004 Restoration

Washed Out but not Washed Up Sharon Woods is a 730-acre park owned and operated by the Hamilton County (Ohio) Park District. Recent floods severely undercut the foundations for the upstream spandrel wall, causing it to drop more than 18-inches. Read how designers investigated the damage and proposed repair solutions. Marquette Interchange Reconstruction This interchange, originally called the Central Interchange, was dedicated and opened to traffic on December 23, 1968. Unfortunately, after 35 years of service, it is in dire need for replacement. Fifty six of one hundred fifty two bridges are rated “tolerable” or “minimally tolerable” under FHWA guidelines. Helix Pedestrian Bridge The Helix Pedestrian Bridge is a transformation of the basic biological structures of DNA into an engineering design. The structure itself became the vision through its helical form. The basic “bones” of the structure make up only half of the overall costs. And the “bones” in this case are the story… Movable Bridge Design Movable spans are required for bridges crossing navigable waterways to allow passage of vessels in locations where alternatives are not practical or cost effective. Despite inherent disadvantages, movable bridges still provide the most practical solution for bridge owners at certain locations.	Editorial From the Desk of… Lance Atkins, CASE Chairman Codes & Standards Updates on codes and standards of interest to structural engineers... What structural engineers need to know about the AISC Fabricator Certification Program Structural Design Discussions on design issues for structural engineers... Hitting the Mark on Steel Girder Bridge Erection Structural Forum Discussions on topics of current importance to structural engineers Part 1 - Commentary on “Quality in the Constructed Project” Part 2 - Response to William Sherman’s Commentary Practical Solutions Practical solutions for the practicing structural engineer... Risk Management Program off to a Flying Start

NCSEA News News from the National Council of Structural Engineers Associations • NCSEA Winter Institute 2005 Structural Columns The newsletter of the Structural Engineering Institute of ASCE • Calling All Civil Engineer Photographers • Risk Management Convocation to be Held in Reston CASE In Point The newsletter of the Council of American Structural Engineers • GSA Reveals Construction Plans • OSHA Helpful Websites	Great Achievements Notable engineers & engineering Product Watch Products & Services Updates Spotlight Award Winning Projects On the cover... The Helix Pedestrian Bridge. Photo furnished by KPFF Consulting Engineers.

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