Structural Inventory and Appraisal (SI&A) Data

Data recorded and stored for each bridge as standardized by the Federal Highway Administration to effectively monitor and manage a bridge inventory. Data submissions follow the current version of U. S. Department of Transportation, Federal Highway Administration, Report No. FHWA-PD-96-001, Recording and Coding Guide for the Structure Inventory and Appraisal of the Nation's Bridges and associated guidance.