If you're routing commercial vehicles, you need to know which bridges your truck can't clear. The FHWA National Bridge Inventory has 621,000 bridges with height and weight data — but it's buried in an ArcGIS FeatureServer with pagination limits and cryptic field codes. Road511 normalizes all of it into one queryable API. Plus state-level bridge inventories from PA, OH, TX, VA, NY, FL, WA, and IN w