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The American Association of State Highway and Transportation Officials (AASHTO) is a standards setting body which publishes specifications, test protocols, and guidelines that are used in highway design and construction throughout the United States. Despite its name, the association represents not only highways but air, rail, water, and public ...
All of the unsigned Interstates in Alaska and Puerto Rico are exempt from Interstate Highway standards and are instead, per Title 23, Chapter 1, Section 103 of the U.S. Code, "designed in accordance with such geometric and construction standards as are adequate for current and probable future traffic demands and the needs of the locality of the ...
Highway designs in the US are subject to the AASHTO specifications, [4] [6] but the text does not contain specific procedures and recommendations. [2] Railway bridges are built according to the "Manual for Railway Engineering" [12] published by the American Railway Engineering and Maintenance-of-Way Association (AREMA).
The bridge inventory is developed for having a unified database for bridges, including the identification information; bridge types and specifications; operational conditions; and bridge data including geometric data, functional description, inspection data, etc. Bridge type and specifications classify the type of the bridge. That part provides ...
• AASHTO Design Guidelines for "Mountable" Curbs • AASHTO Guide Specification for Seismic Isolation Design • AASHTO 1998 Article 5.8 AASHTO 1998 Article 5.8 • AASHTO AMRL AASHTO Materials Reference Laboratory (AMRL) • AASHTO FRPS-1-UL Design of Bonded FRP Systems for Repair and Strengthening of Concrete Bridge Elements • AASHTO GFRP-1-UL LRFD Bridge Design Guide Specifications for ...
In civil engineering, clearance refers to the difference between the loading gauge and the structure gauge in the case of railroad cars or trams, or the difference between the size of any vehicle and the width/height of doors, the width/height of an overpass or the diameter of a tunnel as well as the air draft under a bridge, the width of a lock or diameter of a tunnel in the case of watercraft.
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The 16 under-designed plates that failed were found to be only 1/2 inch thick when they should have been thicker to be in accordance with the American Association of State Highway and Transportation Officials (AASHTO) “Standard Specifications for Highway Bridges”, 1961. [4]