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

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%.

Condition Distribution

Bridge inventory deck-condition mix — Missouri (FHWA NBI)

Missouri34.50150077066601%48.14228928368622%8.53411211162489%8.53411211162489%GoodFairPoorStructurally Deficient
Bridge inventory deck-condition mix — Missouri (FHWA NBI)

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.

17

Illinois

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

25

Massachusetts

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

29

Missouri

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

26

Michigan

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

02

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

RT B E

Unknown

Over: MO 7

S 24 T 43 N R 29 W, Cass, MO

Built 1987 ADT: 7,960

RT F S

Unknown

Over: MO 7

S 26 T 44 N R 30 W, Cass, MO

Built 1986 ADT: 9,616

MO 291 S

Unknown

Over: IS 49

S 5 T 41 N R 31 W, Cass, MO

Built 2014 ADT: 20,867

MO 291 N

Unknown

Over: IS 49

S 5 T 41 N R 31 W, Cass, MO

Built 2014 ADT: 20,566

PECULIAR WAY E

Unknown

Over: IS 49

S 9 T 45 N R 32 W, Cass, MO

Built 2015 ADT: 24,997

MO 7 S

Unknown

Over: IS 49

S 16 T 44 N R 31 W, Cass, MO

Built 2023 ADT: 10,479

MO 7 S

Unknown

Over: IS 49

S 16 T 44 N R 31 W, Cass, MO

Built 2023 ADT: 10,479

MO 14 E

Unknown

Over: US 65

S 22 T 27 N R 21 W, Christian, MO

Built 1977 ADT: 23,239

RT F E

Unknown

Over: US 65

S 28 T 27 N R 21 W, Christian, MO

Built 1996 ADT: 15,926

SELMORE OVERPASS E

Unknown

Over: US 65

S 9 T 26 N R 21 W, Christian, MO

Built 1996 ADT: 16,477

RT EE E

Unknown

Over: US 65

S 21 T 26 N R 21 W, Christian, MO

Built 1996 ADT: 16,477

RT J E

Unknown

Over: US 65

S 3 T 27 N R 21 W, Christian, MO

Built 1987 ADT: 32,646

RT J W

Unknown

Over: US 65

S 3 T 27 N R 21 W, Christian, MO

Built 2016 ADT: 32,646

MO 27 N

Unknown

Over: US 136

S 32 T 65 N R 6 W, Clark, MO

Built 2002 ADT: 2,670

MO 27 S

Unknown

Over: US 136

S 32 T 65 N R 6 W, Clark, MO

Built 2002 ADT: 3,872

US 61 S

Unknown

Over: MO 27

S 8 T 64 N R 6 W, Clark, MO

Built 2006 ADT: 2,759

IS 35 S

Unknown

Over: MO 92

S 27 T 53 N R 31 W, Clay, MO

Built 1965 ADT: 15,571

IS 35 N

Unknown

Over: MO 92

S 27 T 53 N R 31 W, Clay, MO

Built 1965 ADT: 15,571

IS 35 S

Unknown

Over: MO 33

S 27 T 53 N R 31 W, Clay, MO

Built 1965 ADT: 13,368

IS 35 N

Unknown

Over: MO 33

S 27 T 53 N R 31 W, Clay, MO

Built 1965 ADT: 13,368

MO 152 W

Unknown

Over: CST MAPLEWOODS PKWY

S 1 T 51 N R 33 W, Clay, MO

Built 1999 ADT: 1,063

MO 152 E

Unknown

Over: CST MAPLEWOODS PKWY

S 1 T 51 N R 33 W, Clay, MO

Built 1999 ADT: 1,063

US 169 S

Unknown

Over: CST NW 68TH ST

S 22 T 51 N R 33 W, Clay, MO

Built 2000 ADT: 14,263

RP IS35S TO IS435S

Unknown

Over: IS 35

S 27 T 51 N R 32 W, Clay, MO

Built 1969 ADT: 32,542

RP IS435N TO IS35S

Unknown

Over: RP IS35S TO IS435S

S 27 T 51 N R 32 W, Clay, MO

Built 1969 ADT: 14,172

RP US69S TO IS35S

Unknown

Over: RP IS435N TO IS35N

S 27 T 51 N R 32 W, Clay, MO

Built 1969 ADT: 13,440

RP IS35N TO IS435S

Unknown

Over: US 69

S 27 T 51 N R 32 W, Clay, MO

Built 1969 ADT: 4,688

RP IS435N TO IS35N

Unknown

Over: US 69

S 27 T 51 N R 32 W, Clay, MO

Built 1969 ADT: 5,782

RP IS29S TO US169S

Unknown

Over: US 69

S 34 T 51 N R 33 W, Clay, MO

Built 1965 ADT: 3,870

US 169 S

Unknown

Over: US 69

S 34 T 51 N R 33 W, Clay, MO

Built 1965 ADT: 3,870

RP US169N TO IS29N

Unknown

Over: US 69

S 34 T 51 N R 33 W, Clay, MO

Built 1965 ADT: 3,597

US 169 N

Unknown

Over: US 69

S 334 T 51 N R 33 W, Clay, MO

Built 1965 ADT: 3,870

RP US169S TO MO9N

Unknown

Over: MO 9

S 10 T 50 N R 33 W, Clay, MO

Built 1965 ADT: 5,614

US 169 N

Unknown

Over: MO 9

S 10 T 50 N R 33 W, Clay, MO

Built 1975 ADT: 12,261

US 169 S

Unknown

Over: MO 9

S 10 T 50 N R 33 W, Clay, MO

Built 1965 ADT: 5,614

US 169 S

Unknown

Over: MO 9

S 10 T 50 N R 33 W, Clay, MO

Built 1975 ADT: 10,126

US 169 N

Unknown

Over: MO 9

S 10 T 50 N R 33 W, Clay, MO

Built 1965 ADT: 10,126

RP US169N TO MO9N

Unknown

Over: MO 9

S 10 T 50 N R 33 W, Clay, MO

Built 1965 ADT: 10,126

IS 29 N

Unknown

Over: US 169

S 34 T 51 N R 33 W, Clay, MO

Built 1965 ADT: 30,944

US 169 S

Unknown

Over: IS 29

S 34 T 51 N R 33 W, Clay, MO

Built 1965 ADT: 54,703

RP US169N TO IS29N

Unknown

Over: US 169

S 34 T 51 N R 33 W, Clay, MO

Built 1965 ADT: 29,619

US 169 N

Unknown

Over: RP US169S TO IS29S

S 34 T 51 N R 33 W, Clay, MO

Built 1965 ADT: 12,662

US 169 S

Unknown

Over: CST NW BRIARCLIFF PKWY

S 3 T 50 N R 33 W, Clay, MO

Built 1965 ADT: 1,897

US 169 N

Unknown

Over: CST NW BRIARCLIFF PKWY

S 3 T 50 N R 33 W, Clay, MO

Built 1965 ADT: 1,897

IS 435 N

Unknown

Over: CST NE 48TH ST

S 3 T 50 N R 32 W, Clay, MO

Built 1968 ADT: 8,576

IS 435 S

Unknown

Over: CST NE 48TH ST

S 3 T 50 N R 32 W, Clay, MO

Built 1968 ADT: 8,576

IS 435 N

Unknown

Over: CST NE PARVIN RD

S 3 T 50 N R 32 W, Clay, MO

Built 1968 ADT: 10,189

IS 435 S

Unknown

Over: CST NE PARVIN RD

S 9 T 50 N R 32 W, Clay, MO

Built 1968 ADT: 10,189

RP IS35S TO IS29N

Unknown

Over: RP IS29N TO DAVIDSON RD

S 1 T 50 N R 33 W, Clay, MO

Built 1967 ADT: 1,720

RP IS29S TO IS35N

Unknown

Over: CST N DAVIDSON RD

S 1 T 50 N R 33 W, Clay, MO

Built 1967 ADT: 6,658

Showing 301-350 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.