Vertical clearance, load rating, and posting status for bridges near a point on your route — pulled live from FHWA's own National Bridge Inventory.
FHWA's own guidance: NBI data should not be used for route clearance decisions. Bridges are reinspected roughly every 24 months, so a listed clearance or rating may not reflect current conditions. Always follow posted signage and, for oversize/overweight loads, a real permit routing check.