Excerpt from the FHWA Recording and Coding Guide for the Structure Inventory and Appraisal of the Nations Bridges, December 1995

Update: 21 October, 2023

This article is an excerpt from the FHWA Recording and Coding Guide for the Structure Inventory and Appraisal of the Nations Bridges, December 1995, which describes the algorithms for calculating the following items: 1. NBI Structural Evaluation 2. NBI Deck Geometry 3. NBI Underclearances, Vertical and Horizontal 4. NBI Waterway Adequacy 5. NBI Approach Roadway Alignment 6. Sufficiency Rating 7. Structurally Deficient 8. Functionally Obsolete

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Publication date: 21 October, 2023

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PDF Link: Excerpt from the FHWA Recording and Coding Guide for the Structure Inventory and Appraisal of the Nations Bridges, December 1995 PDF