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30 Sep 2013 Inspection Data Used for Load Rating . .. Rating bridges for Routine commercial trucks . AASHTO “Manual for Bridge Evaluation”. NBI. 22 Mar 2011 The National Bridge Inspection Standards (NBIS) Title 23-CFR-650 Section Manual for Bridge Evaluation (formerly the Manual for Condition 30 Oct 2006 As in the past, the load rating used to report NBI Item 70, Bridge Posting may be computed either by LRFR, LFR, or ASR methods using the maximum unrestricted legal loads to establish load limits for the purpose of load posting. Item 70 evaluates the load capacity of a bridge in comparison to the State legal loads. Inventory Bridge - a bridge is included in the bridge inventory file when it carries a public highway or when it carries moving loads over a public highway or a FOREWORD. The Manual for Bridge Evaluation (MBE) was first adopted by the AASHTO Highways .. inspections and load ratings, bridge inspection programs. In 2011, AASHTO released The Manual for Bridge Evaluation (MBE). The manual The inventory rating is the load level that a structure can safely sustain for an The dead load unit weights given in the current AASHTO LRFD Bridge Design Truck or Standard Lane Load shall be used when computing the Inventory and . Highway Bridges and the current AASHTO Manual for Bridge Evaluation,LOAD & RESISTANCE FACTOR RATING OF HIGHWAY BRIDGES. SESSION 3 Inventory. Rating. Operating. Rating. •Axial. •Moment. •Shear. •Serviceability. •Moment ?Recent revisions to the Coding Guide to allow reporting of HL-93 Inventory Rating, as defined by the current AASHTO Manual for Bridge Evaluation,3 is that load, including loads in multiple lanes that can safely utilize the bridge for an indefinite period of time. Operating Rating, defined by the same manual, is the maximum permissible live load that can be placed on the bridge. 19 Jul 2019 WSDOT Bridge Design Manual M 23-50.19 . WSDOT Bridge Preservation Office is responsible for the bridge inventory and load rating.