Bridge Safety Statistics

Data and trends from 624,193 bridges in the FHWA National Bridge Inventory across 53 states.

The National Bridge Inventory contains 624,193 bridges across 53 states. Of these, 41,685 are rated in Poor condition, meaning they require attention or have structural deficiencies that need to be addressed.

0 Total Bridges

0 Poor Condition

0 Good Condition

0 Average Age (Years)

Condition Distribution

Overall bridge condition ratings nationwide.

Built by Decade

When the nation's bridges were constructed.

Top States by Bridge Count

States with the most bridges in the National Bridge Inventory.

By Owner Type

Bridge ownership distribution across all states.

Bridges by State

Complete state-by-state bridge count from the National Bridge Inventory.

#	State	Bridges	Good	Poor
1	Texas	56,951	29,423	680
2	Illinois	26,927	12,012	2,563
3	Ohio	26,713	16,242	1,266
4	California	25,975	12,239	1,284
5	Kansas	24,891	12,966	1,301
6	Missouri	24,647	9,180	2,163
7	Iowa	23,716	9,329	4,423
8	Pennsylvania	23,314	8,019	2,813
9	Oklahoma	22,926	9,515	1,719
10	Tennessee	20,374	8,620	887
11	Indiana	19,542	8,213	1,043
12	North Carolina	19,343	8,800	1,382
13	New York	17,666	5,698	1,741
14	Mississippi	16,711	9,070	967
15	Alabama	16,181	5,801	545
16	Nebraska	15,412	8,169	1,155
17	Georgia	15,090	10,876	263
18	Kentucky	14,590	3,916	1,088
19	Wisconsin	14,498	6,749	976
20	Virginia	14,143	4,609	485
21	Minnesota	13,551	7,636	609
22	Florida	13,070	7,705	360
23	Arkansas	12,978	5,770	695
24	Louisiana	12,684	4,802	1,423
25	Michigan	11,397	3,778	1,250
26	South Carolina	9,504	3,568	602
27	Colorado	8,990	3,035	417
28	Arizona	8,587	5,430	95
29	Washington	8,520	4,343	473
30	Oregon	8,329	2,645	422
31	West Virginia	7,345	1,960	1,307
32	New Jersey	6,825	1,732	392
33	South Dakota	5,883	2,038	945
34	Maryland	5,500	1,753	240
35	Massachusetts	5,311	1,291	501
36	Montana	5,235	1,682	388
37	Idaho	4,646	1,468	250
38	Connecticut	4,363	1,210	209
39	North Dakota	4,250	1,782	470
40	New Mexico	4,033	1,356	172
41	Utah	3,144	659	109
42	Wyoming	3,138	895	224
43	Vermont	2,866	1,348	114
44	New Hampshire	2,549	1,303	192
45	Maine	2,542	637	392
46	Puerto Rico	2,434	414	344
47	Nevada	2,123	1,200	22
48	Alaska	1,660	766	124
49	Hawaii	1,180	461	67
50	Delaware	874	376	10
51	Rhode Island	787	196	110
52	District of Columbia	261	90	5
53	Virgin Islands	24	4	8

About This Data

All bridge data comes from the Federal Highway Administration (FHWA) National Bridge Inventory (NBI). The NBI is a database of all bridges and tunnels on public roads in the United States that have a span of more than 20 feet. Bridge owners are required to inspect each structure at least once every two years and submit the results to FHWA.

Good means the bridge's structural elements are sound and functioning as designed. Fair means the bridge shows some minor deterioration but is structurally adequate. Poor means the bridge has significant deterioration and may have load-carrying restrictions. A Poor rating does not mean the bridge is unsafe for travel — bridges deemed unsafe are closed to traffic.