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Stable CSVs, refreshed with each inventory vintage

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Every number on this site, as stable CSV downloads. Free to use with attribution; the underlying inventory is public domain.

bridge-conditions-by-state.csv

Good/Fair/Poor bridge counts per state, with poor percentage.

Column	Meaning
`state`	state name
`bridges`	inventoried bridges
`good`
`fair`
`poor`
`poor_pct`

bridge-conditions-by-county.csv

Good/Fair/Poor bridge counts for every U.S. county.

Column	Meaning
`state`
`county`
`bridges`
`good`
`fair`
`poor`
`poor_pct`

poor-bridges.csv

Every bridge rated poor in the current inventory: location, year built, traffic, and component ratings.

Column	Meaning
`state`
`county`
`structure_number`	NBI id
`facility`	road carried
`feature`	what it crosses
`year_built`
`adt`	avg daily traffic
`deck`	rating 0-9
`superstructure`
`substructure`
`culvert`
`lat`
`lon`

Every bridge, one CSV per state

The complete 2025 inventory for each state - every bridge, all conditions - with the fields this site renders and a permalink column. Files are named bridges-<state>.csv:

AL · AK · AZ · AR · CA · CO · CT · DE · DC · FL · GA · HI · ID · IL · IN · IA · KS · KY · LA · ME · MD · MA · MI · MN · MS · MO · MT · NE · NV · NH · NJ · NM · NY · NC · ND · OH · OK · OR · PA · PR · RI · SC · SD · TN · TX · UT · VT · VA · WA · WV · WI · WY

Column	Meaning
`state`
`county`
`structure_number`	NBI id
`facility`	road carried
`feature`	what it crosses
`location`	inventory location text
`year_built`
`year_reconstructed`
`adt`	avg daily traffic
`adt_year`	traffic count year
`condition`	G/F/P, FHWA computed
`deck`	rating 0-9
`superstructure`
`substructure`
`culvert`
`structure_kind`	NBI item 43A code
`structure_type`	NBI item 43B code
`length_m`	structure length, metres
`owner_code`	NBI item 22
`lat`
`lon`
`permalink`	this site's page

Source: FHWA National Bridge Inventory, 2025 vintage.