PREFACE To reflect the findings in research, new products or changes in design concepts, revised portions of the manual, or addendum, will be issued to maintain a current Bridge Design Manual. The agency or its representative using this manual is responsible for compliance with not only the Manual but any addendums. The Office of Structural Engineering offers a web page, the Manual and addenda at: http://www.dot.state.oh.us/se/ Any comments or suggestions you may have to better the manual should be addressed to the Ohio Department of Transportation, Office of Structural Engineering, 1980 W. Broad Street, Columbus, Ohio 43223. In this manual “Department” shall refer to the “Office of Structural Engineering” or “its representatives” including any district office production Administrator responsible for plan review or any consultant contracted by the Department to perform bridge plan review. Where the “Office of Structural Engineering” is specifically referenced in the manual only the ODOT Office of Structural Engineering shall be the governing authority. The user of this manual (i.e. Consulting engineers, ODOT District Personnel, County and other governmental agencies) will be referred to as the “Design Agency”. The owner of the project will be referred to as the “Appointing Authority”.