State profile · Near national median SD

Missouri bridge safety

Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Missouri - drawn straight from the FHWA National Bridge Inventory.

24,654
Public bridges
34.5%
Good condition
8.5%
Poor condition
8.5%
Structurally deficient

Data updated May 2026

Total Bridges

24,654

Public highway bridges in Missouri

Good Condition

34.5%

8,506 bridges rated 7-9

-15.5pp vs 50% benchmark

Poor Condition

8.5%

2,104 bridges rated 0-4

Structurally Deficient

8.5%

2,104 bridges flagged for repair priority

1.5pp vs national avg 7.0%

Missouri vs national bridge condition

Missouri - Good condition share 34.5%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Missouri - Structurally deficient share 28.4%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.

Missouri vs nearby ranks

Adjacent states on the structurally deficient leaderboard (lower share = better)

States are ranked by share of bridges flagged structurally deficient, the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Missouri on the same metric.

IL

Illinois

7.88% top marginal rate
Structure
Progressive
Burden @ $100K
$27,743

MA

Massachusetts

7.96% top marginal rate
Structure
Progressive
Burden @ $100K
$5,314
Selected

MO

Missouri

8.53% top marginal rate
Structure
Progressive
Burden @ $100K
$24,654

MI

Michigan

8.92% top marginal rate
Structure
Progressive
Burden @ $100K
$1,188

AK

Alaska

10.12% top marginal rate
Structure
Progressive
Burden @ $100K
$909

Bridges Needing Most Attention in Missouri

Six lowest-condition bridges in Missouri, ranked by composite NBI rating. Each is inspected at least every 24 months.

All Bridges in Missouri

US 63 S

Unknown

Over: PATTERSON ST

S 11 T 62 N R 15 W, Adair, MO

Built 2009 ADT: 600

US 63 S

Unknown

Over: BU 63

S 28 T 63 N R 15 W, Adair, MO

Built 2009 ADT: 6,646

BU 63 N

Unknown

Over: US 63

S 27 T 62 N R 15 W, Adair, MO

Built 2010 ADT: 3,988

US 59 S

Unknown

Over: IS 29

S 31 T 60 N R 36 W, Andrew, MO

Built 1966 ADT: 12,374

IS 29 S

Unknown

Over: CRD 404

S 15 T 59 N R 36 W, Andrew, MO

Built 1966 ADT: 58

IS 29 N

Unknown

Over: CRD 404

S 15 T 59 N R 36 W, Andrew, MO

Built 1966 ADT: 58

RT K S

Unknown

Over: IS 29

S 23 T 59 N R 36 W, Andrew, MO

Built 1965 ADT: 11,855

IS 29 S

Unknown

Over: RT T

S 25 T 59 N R 35 W, Andrew, MO

Built 1965 ADT: 897

IS 29 N

Unknown

Over: RT T

S 25 T 59 N R 35 W, Andrew, MO

Built 1965 ADT: 897

IS 29 S

Unknown

Over: RT DD

S 4 T 59 N R 35 W, Andrew, MO

Built 1965 ADT: 673

IS 29 N

Unknown

Over: RT DD

S 4 T 58 N R 35 W, Andrew, MO

Built 1965 ADT: 673

US 71 N

Unknown

Over: US 59

S 6 T 59 N R 35 W, Andrew, MO

Built 1985 ADT: 2,244

US 59 N

Unknown

Over: RT T

S 20 T 59 N R 35 W, Andrew, MO

Built 1985 ADT: 1,939

US 71 S

Unknown

Over: US 59

S 6 T 59 N R 35 W, Andrew, MO

Built 1999 ADT: 2,244

US 59 S

Unknown

Over: RT T

S 20 T 59 N R 35 W, Andrew, MO

Built 1999 ADT: 897

US 59 S

Unknown

Over: CRD 427

S 8 T 59 N R 35 W, Andrew, MO

Built 1999 ADT: 118

372 E

Unknown

Over: IS 229

S 5 T 58 N R 35 W, Andrew, MO

Built 1985 ADT: 1,823

US 59 N

Unknown

Over: CRD 427

S 8 T 59 N R 35 W, Andrew, MO

Built 1985 ADT: 118

369 E

Unknown

Over: US 59

S 29 T 59 N R 35 W, Andrew, MO

Built 1985 ADT: 5,304

IS 229 N

Unknown

Over: CRD 385

S 19 T 57 N R 35 W, Andrew, MO

Built 1983 ADT: 10

LP 29 S

Unknown

Over: IS 29

S 10 T 58 N R 35 W, Andrew, MO

Built 1962 ADT: 10,965

US 59 N

Unknown

Over: IS 29

S 10 T 58 N R 35 W, Andrew, MO

Built 1962 ADT: 14,082

369 E

Unknown

Over: IS 29

S 31 T 59 N R 35 W, Andrew, MO

Built 1965 ADT: 11,598

IS 229 S

Unknown

Over: CRD 375

S 8 T 58 N R 35 W, Andrew, MO

Built 1985 ADT: 58

IS 229 N

Unknown

Over: CRD 375

S 8 T 58 N R 35 W, Andrew, MO

Built 1985 ADT: 58

RT K S

Unknown

Over: IS 229

S 18 T 58 N R 35 W, Andrew, MO

Built 1983 ADT: 3,129

IS 229 S

Unknown

Over: CRD 385

S 19 T 58 N R 35 W, Andrew, MO

Built 1983 ADT: 10

IS 29 N

Unknown

Over: US 59

S 32 T 59 N R 35 W, Andrew, MO

Built 1965 ADT: 3,341

IS 29 N

Unknown

Over: RP IS229N TO US59N

S 32 T 59 N R 35 W, Andrew, MO

Built 1965 ADT: 1,834

IS 29 S

Unknown

Over: RP IS29N TO IS229S

S 32 T 59 N R 35 W, Andrew, MO

Built 1965 ADT: 66

IS 29 S

Unknown

Over: RP IS229N TO US59N

S 32 T 59 N R 35 W, Andrew, MO

Built 1965 ADT: 1,834

IS 29 S

Unknown

Over: LEVEE MAINT. RD

S 3 T 66 N R 42 W, Atchison, MO

Built 1971 ADT: 25

IS 29 N

Unknown

Over: LEVEE MAINT. RD

S 3 T 66 N R 42 W, Atchison, MO

Built 1971 ADT: 4

C AVE S

Unknown

Over: IS 29

S 2 T 66 N R 42 W, Atchison, MO

Built 1971 ADT: 8,146

DAYTON AVE S

Unknown

Over: IS 29

S 24 T 66 N R 42 W, Atchison, MO

Built 1971 ADT: 7,569

RT A E

Unknown

Over: IS 29

S 1 T 65 N R 41 W, Atchison, MO

Built 1971 ADT: 8,146

RED STAR RD E

Unknown

Over: IS 29

S 19 T 65 N R 41 W, Atchison, MO

Built 1969 ADT: 9,106

US 136 E

Unknown

Over: IS 29

S 32 T 65 N R 41 W, Atchison, MO

Built 1969 ADT: 11,738

RT W S

Unknown

Over: IS 29

S 19 T 63 N R 40 W, Atchison, MO

Built 1973 ADT: 8,286

MO 111 S

Unknown

Over: IS 29

S 9 T 64 N R 41 W, Atchison, MO

Built 2021 ADT: 9,779

280 ST E

Unknown

Over: IS 29

S 26 T 64 N R 41 W, Atchison, MO

Built 1973 ADT: 9,366

RT Z E

Unknown

Over: IS 29

S 2 T 63 N R 41 W, Atchison, MO

Built 1973 ADT: 9,366

MO 15 S

Unknown

Over: US 54

S 14 T 50 N R 9 W, Audrain, MO

Built 1991 ADT: 2,357

815 S

Unknown

Over: US 54

S 12 T 50 N R 9 W, Audrain, MO

Built 1991 ADT: 4,514

IS 49 S

Unknown

Over: US 160

S 26 T 32 N R 31 W, Barton, MO

Built 1972 ADT: 5,296

IS 49 N

Unknown

Over: US 160

S 26 T 32 N R 31 W, Barton, MO

Built 1972 ADT: 5,296

MO 126 E

Unknown

Over: IS 49

S 26 T 31 N R 31 W, Barton, MO

Built 2009 ADT: 6,442

RT DD E

Unknown

Over: IS 49

S 2 T 32 N R 31 W, Barton, MO

Built 2010 ADT: 7,484

RT C E

Unknown

Over: IS 49

S 23 T 33 N R 31 W, Barton, MO

Built 2010 ADT: 7,805

SE 30TH RD E

Unknown

Over: IS 49

S 1 T 31 N R 31 W, Barton, MO

Built 2011 ADT: 6,442

Showing 1-50 of 24,654 bridges

Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.