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

NW 108TH ST E

Unknown

Over: US 169

S 27 T 52 N R 33 W, Clay, MO

Built 2011 ADT: 10,075

N FLINTLOCK RD S

Unknown

Over: OR 35

S 14 T 51 N R 32 W, Clay, MO

Built 2013 ADT: 9,020

MO 291 S

Unknown

Over: IS 35

S 1 T 51 N R 32 W, Clay, MO

Built 2013 ADT: 29,041

IS 35 N

Unknown

Over: CST PLEASANT VALLEY RD

S 22 T 51 N R 32 W, Clay, MO

Built 2014 ADT: 3,507

IS 35 S

Unknown

Over: CST PLEASANT VALLEY RD

S 22 T 51 N R 32 W, Clay, MO

Built 2014 ADT: 3,507

IS 35 N

Unknown

Over: US 69

S 23 T 51 N R 32 W, Clay, MO

Built 2014 ADT: 3,815

IS 35 S

Unknown

Over: US 69

S 23 T 51 N R 32 W, Clay, MO

Built 2014 ADT: 3,815

IS 35 N

Unknown

Over: CST POE AVE

S 28 T 51 N R 32 W, Clay, MO

Built 2015 ADT: 818

IS 35 S

Unknown

Over: CST POE AVE

S 28 T 51 N R 32 W, Clay, MO

Built 2015 ADT: 818

MO 10 E

Unknown

Over: CST MARIETTA ST

S 1 T 52 N R 30 W, Clay, MO

Built 2015 ADT: 1,356

IS 435 S

Unknown

Over: CST N MERSINGTON AVE

S 18 T 52 N R 32 W, Clay, MO

Built 1983 ADT: 10

IS 435 N

Unknown

Over: MO 210

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

Built 2016 ADT: 11,373

IS 435 S

Unknown

Over: MO 210

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

Built 2016 ADT: 11,373

IS 35 N

Unknown

Over: US 69

S 31 T 52 N R 31 W, Clay, MO

Built 2017 ADT: 12,569

IS 35 S

Unknown

Over: US 69

S 30 T 52 N R 31 W, Clay, MO

Built 2017 ADT: 12,569

US 169 N

Unknown

Over: CST NW 68TH ST

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

Built 1985 ADT: 16,240

MO 152 E

Unknown

Over: IS 35

S 11 T 51 N R 32 W, Clay, MO

Built 2019 ADT: 33,312

RP IS35S TO MO152E

Unknown

Over: IS 35

S 11 T 51 N R 32 W, Clay, MO

Built 2019 ADT: 30,710

NE 53RD TER E

Unknown

Over: IS 435

S 34 T 51 N R 32 W, Clay, MO

Built 2021 ADT: 33,912

19TH ST E

Unknown

Over: IS 35

S 33 T 53 N R 31 W, Clay, MO

Built 2022 ADT: 21,373

US 169 S

Unknown

Over: CST HARLEM RD

S 26 T 50 N R 33 W, Clay, MO

Built 2021 ADT: 2,917

US 169 S

Unknown

Over: ACCESS BRIDGE

S 11 T 50 N R 33 W, Clay, MO

Built 1975 ADT: 100

US 169 S

Unknown

Over: RP LOU HOLLAND DR TO US1

S 14 T 50 N R 33 W, Clay, MO

Built 1955 ADT: 505

US 169 N

Unknown

Over: CST HARLEM RD

S 26 T 50 N R 33 W, Clay, MO

Built 1955 ADT: 2,917

US 169 N

Unknown

Over: CST HARLEM RD

S 26 T 50 N R 33 W, Clay, MO

Built 1955 ADT: 5,834

MO 152 W

Unknown

Over: CST N BRIGHTON AVE

S 8 T 51 N R 32 W, Clay, MO

Built 1997 ADT: 4,557

MO 152 W

Unknown

Over: MO 1

S 8 T 51 N R 32 W, Clay, MO

Built 1997 ADT: 9,113

US 169 N

Unknown

Over: CST NW ENGLEWOOD RD

S 27 T 51 N R 33 W, Clay, MO

Built 1996 ADT: 5,892

US 169 S

Unknown

Over: CST NW ENGLEWOOD RD

S 27 T 51 N R 33 W, Clay, MO

Built 1996 ADT: 5,892

IS 35 S

Unknown

Over: CST LIGHTBURNE RD

S 29 T 52 N R 31 W, Clay, MO

Built 1965 ADT: 5,557

IS 35 N

Unknown

Over: CST LIGHTBURNE RD

S 29 T 52 N R 31 W, Clay, MO

Built 1965 ADT: 5,557

IS 435 S

Unknown

Over: CST N LEVEE RD

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

Built 1972 ADT: 2

IS 35 S

Unknown

Over: MO 269

S 6 T 50 N R 32 W, Clay, MO

Built 1954 ADT: 11,518

IS 35 N

Unknown

Over: MO 269

S 6 T 50 N R 32 W, Clay, MO

Built 1954 ADT: 11,518

IS 35 N

Unknown

Over: MO 1

S 1 T 50 N R 32 W, Clay, MO

Built 1954 ADT: 5,770

IS 35 S

Unknown

Over: MO 1

S 1 T 50 N R 32 W, Clay, MO

Built 1954 ADT: 12,761

N BRIGHTON AVE S

Unknown

Over: IS 35

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

Built 1954 ADT: 33,788

SP 69 S

Unknown

Over: IS 35

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

Built 1954 ADT: 33,788

IS 29 N

Unknown

Over: IS 35

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

Built 1955 ADT: 27,700

IS 29 S

Unknown

Over: CST NE PARVIN RD

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

Built 1954 ADT: 5,728

IS 29 N

Unknown

Over: CST NE PARVIN RD

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

Built 1954 ADT: 5,728

IS 29 S

Unknown

Over: CST N DAVIDSON RD

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

Built 1955 ADT: 6,658

IS 29 N

Unknown

Over: CST N DAVIDSON RD

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

Built 1955 ADT: 6,658

IS 29 N

Unknown

Over: CST N OAK TRFY

S 2 T 50 N R 33 W, Clay, MO

Built 1957 ADT: 10,599

IS 29 S

Unknown

Over: CST N OAK TRFY

S 2 T 50 N R 33 W, Clay, MO

Built 1957 ADT: 6,381

IS 29 N

Unknown

Over: RP US169S TO IS29S

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

Built 1957 ADT: 12,662

IS 29 S

Unknown

Over: US 69

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

Built 1957 ADT: 3,597

IS 29 N

Unknown

Over: US 69

S 2 T 50 N R 33 W, Clay, MO

Built 1957 ADT: 3,597

BRYANT ST S

Unknown

Over: IS 35

S 28 T 51 N R 32 W, Clay, MO

Built 1958 ADT: 32,542

US 69 S

Unknown

Over: IS 35

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

Built 1958 ADT: 33,788

Showing 401-450 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.