Free, searchable vertical clearance data for 153,733 bridges across all 50 states. Built from the FHWA National Bridge Inventory for truckers, fleet dispatchers, and RV drivers.
This website and all data presented herein are provided strictly for informational and reference purposes only. Bridge clearance data shown on this site is sourced from the FHWA National Bridge Inventory (NBI) and other publicly available government databases. CMBMV LLC does not independently verify, survey, measure, or update bridge clearances. We do not send personnel to measure bridges. We do not operate survey equipment. All data reflects what was publicly reported at the time of the most recent NBI release and may be outdated, incomplete, or inaccurate.
Do not rely on this data for route planning, dispatching, or any operational decision involving vehicle clearance. Bridge clearances change due to road resurfacing, construction, settling, seasonal flooding, snow accumulation, and other factors that are not reflected in annual federal data releases. Posted clearance signs at the bridge itself always supersede any data shown here.
CMBMV LLC, its officers, affiliates, and contributors shall not be held liable for any damages, losses, fines, injuries, accidents, cargo damage, vehicle damage, or any other consequence arising from the use of or reliance upon data presented on this website. This includes but is not limited to bridge strikes, over-height violations, route detours, delivery delays, or any direct, indirect, incidental, or consequential damages of any kind.
By using this site, you acknowledge that you understand these limitations and agree that this data is a starting reference point only — not a substitute for on-the-ground verification, commercial routing software, or official DOT clearance postings. Always verify bridge clearances in person before proceeding with any over-height or over-dimensional load. If in doubt, stop and measure.