THE CONCRETE BRIDGE MAGAZINE

SPRING 2007

ASPIRE is a quarterly magazine published by PCI in cooperation with the associations of the National Concrete Bridge Council. The editorial content focuses on the latest technology and key issues in the Concrete Bridge Industry.

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Photo: Ted Lacey Photography John S. Dick, Executive Editor 2 | ASPIRE , Spring 2007 E D I T O R I A L W elcome back to ASPIRE ™ Magazine! Your response to the inaugural issue was gratifying. We appreciate the comments and encouragement and have included some of your messages on page 4. Your questions and ideas are always welcomed. It is obvious from the many messages; there is a strong demand for a magazine devoted to bridges—one written by bridge engineers for bridge engineers. Concrete bridges play a predominant role in the nation's bridge inventory. Figures for 2003, the latest year available, show that concrete accounted for 74.4 percent of the bridges built that year, based on the surface area of their decks. This confirms the data from previous years. Concrete is clearly the material of choice of designers and the owner agencies. Whether it is the creation of an aesthetic landmark or the use of high performance concrete to achieve higher performing bridges or the development of modular systems to facilitate very short construction periods, new applications for concrete are continually under development or implementation. The goal of this magazine is to report the successes of practitioners, providing both inspirational and practical information about concrete bridge design and construction. Articles in this issue report significant decisions to favor new and impressive concrete bridge solutions on the part of such owners as the Texas Department of Transportation, the New Hampshire Department of Transportation, the CSX Transportation, the Iowa Department of Transportation and the Pennsylvania Turnpike Authority. We believe you'll find these stories interesting and compelling. I said it in the first issue and I think it's worth repeating again: according to the dictionary, the word aspire means to demonstrate "a strong desire for high achievement," to "strive toward an end," to "soar." That definition aptly describes both the ambition of a bridge designer and the mission of this new magazine. If you have questions about any bridge featured in this issue or about information contained in the state, county, city or LRFD departments, send them to us via the "Contact Us" page of our website, www.aspirebridge.org. Executive Editor: John S. Dick Managing Technical Editor: Dr. Henry G. Russell Managing Editor: Craig A. Shutt Editorial Staff: Daniel C. Brown, Roy Diez, Wayne A. Endicott, Donald P. Merwin, Anne Patterson Editorial Administration: James O. Ahtes Inc. Art Director: Mark Leader, Leader Graphic Design Inc. Layout Design: Marcia Bending, Leader Graphic Design Inc. Electronic Production: Chris Bakker, Jim Henson, Leader Graphic Design Inc. Ad Sales: Jim Oestmann Phone: (847) 577-8980 • Cell: (847) 924-5497 Fax: (847) 577-0129 joestmann@arlpub.com Reprint Sales: Mark Leader (847) 564-5409 e-mail: sales@leadergraphics.com Publisher: Precast/Prestressed Concrete Institute, James G. Toscas, President Editorial Advisory Board: Dr. Shrinivas B. Bhide, Portland Cement Association (PCA) John S. Dick, Precast/Prestressed Concrete Institute (PCI) Clifford L. Freyermuth, American Segmental Bridge Institute (ASBI) Theodore L. Neff, Post-Tensioning Institute (PTI) Dr. Henry G. Russell, Managing Technical Editor POSTMASTER: Send address changes to ASPIRE, 209 W. Jackson Blvd., Suite 500, Chicago, IL 60606-9887. Periodical postage paid at Chicago, IL, and additional mailing offices. ASPIRE (Vol. 1, No. 2), ISSN 1935-2093 is published quarterly by the Precast/Prestressed Concrete Institute, 209 W. Jackson Blvd., Suite 500, Chicago, IL 60606-6938. Copyright 2007, Precast/Prestressed Concrete Institute. If you have a project to be considered for ASPIRE, send information to ASPIRE, 209 W. Jackson Blvd., Suite 500, Chicago, IL 60606-9887 phone: (312) 786-0300 www.aspirebridge.org e-mail: info@aspirebridge.org Cover: Veterans' Glass City Skyway Toledo, Ohio Photo: FIGG Welcome Back to ASPIRE™ Magazine Precast/Prestressed Concrete Institute Post-Tensioning Institute Portland Cement Association American Coal Ash Association Wire Reinforcement Institute Expanded Shale Clay and Slate Institute National Ready Mixed Concrete Association Silica Fume Association 1 American Segmental Bridge Institute ASPIRE_spring_2007.indb 2 3/7/07 12:23:31 PM

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