BRIDGE APPROACH DESIGN AND CONSTRUCTION PRACTICES

A THOROUGH LITERATURE SEARCH WAS CONDUCTED OF ALL PERTINENT PUBLICATIONS AND INTERVIEWS HELD WITH HIGHWAY PERSONNEL IN ANALYZING ALL INFORMATION ON CURRENT PRACTICES, PLANS, SPECIFICATIONS, MANUALS AND RESEARCH RECOMMENDATIONS ON BRIDGE APPROACH DESIGN AND CONSTRUCTION. SOIL, DESIGN CONSTRUCTION, AND MAINTENANCE ENGINEERS MUST CONSIDER THEMSELVES JOINTLY RESPONSIBLE FOR EFFORTS TO ELIMINATE ROUGH BRIDGE APPROACHES. MOST BRIDGE APPROACH PROBLEMS CAN BE MINIMIZED DURING THE DESIGN AND CONSTRUCTION BY ADEQUATE CONSIDERATION OF: (1) FOUNDATION CONDITIONS, (2) THE REMOVAL OF UNSUITABLE MATERIAL, (3) THE INSTALLATION OF SPECIAL DRAINS, (4) EMBANKMENT HEIGHT, MATERIAL, AND CONSTRUCTION METHODS, (5) SURCHARGES AND/OR WAITING PERIODS, (6) SUBGRADE, SUBBASE, AND BASE MATERIAL, (7) ABUTMENT TYPE, SUPPORT, DRAINAGE, AND BACKFILL, AND (8) SPECIAL APPROACH SLABS. EACH OF THESE CONSIDERATIONS ARE DISCUSSED, HOWEVER, CONSTRUCTION AND MAINTENANCE COSTS MUST ALSO AFFECT THE FINAL DESIGN. A SYSTEMS STUDY THAT WEIGHS PREVENTIVE COSTS, DRIVER BENEFITS, AND PROJECTED MAINTENANCE EXPENDITURES MAY ENABLE THE ENGINEER TO SELECT THE MOST FEASIBLE DESIGN.

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    • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved. No.2, 30 Pp, 29 FIG, 1 TAB, REFS, 3 APP
  • Publication Date: 1969

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  • Media Type: Digital/other
  • Pagination: 29p
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    Open Access (libre)

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Filing Info

  • Accession Number: 00232773
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: Mar 9 1970 12:00AM