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

NE 5TH RD E

Unknown

Over: IS 49

S 23 T 32 N R 31 W, Barton, MO

Built 2014 ADT: 8,080

IS 49 S

Unknown

Over: LP 49

S 3 T 40 N R 31 W, Bates, MO

Built 1969 ADT: 3,047

IS 49 N

Unknown

Over: LP 49

S 3 T 40 N R 31 W, Bates, MO

Built 1969 ADT: 3,047

IS 49 S

Unknown

Over: CRD NW 1502

S 28 T 40 N R 31 W, Bates, MO

Built 1969 ADT: 332

IS 49 N

Unknown

Over: CRD NW 1502

S 28 T 40 N R 31 W, Bates, MO

Built 1969 ADT: 332

RT D E

Unknown

Over: IS 49

S 27 T 41 N R 31 W, Bates, MO

Built 1969 ADT: 8,711

RT TT E

Unknown

Over: IS 49

S 4 T 40 N R 31 W, Bates, MO

Built 1969 ADT: 8,711

MO 52 E

Unknown

Over: IS 49

S 21 T 40 N R 31 W, Bates, MO

Built 1969 ADT: 8,633

MO 18 E

Unknown

Over: IS 49

S 3 T 41 N R 31 W, Bates, MO

Built 1969 ADT: 9,657

RT A E

Unknown

Over: IS 49

S 9 T 38 N R 31 W, Bates, MO

Built 1969 ADT: 5,603

MO 52 E

Unknown

Over: IS 49

S 5 T 39 N R 31 W, Bates, MO

Built 2010 ADT: 7,275

RT E E

Unknown

Over: IS 49

S 21 T 42 N R 31 W, Bates, MO

Built 2011 ADT: 10,555

IS 49 S

Unknown

Over: CRD OLD TOWN ACCESS RD

S 20 T 39 N R 31 W, Bates, MO

Built 1966 ADT: 10

IS 49 N

Unknown

Over: CRD OLD TOWN ACCESS RD

S 20 T 39 N R 31 W, Bates, MO

Built 1966 ADT: 10

JACKSON ST S

Unknown

Over: MO 7

S 16 T 40 N R 22 W, Benton, MO

Built 1976 ADT: 5,135

US 65 S

Unknown

Over: CRD TRUMAN DAM ACCESS RD

S 9 T 40 N R 22 W, Benton, MO

Built 1977 ADT: 6,880

MO 7 N

Unknown

Over: US 65

S 20 T 26 N R 26 W, Benton, MO

Built 1976 ADT: 3,666

E MAIN N

Unknown

Over: US 65

S 16 T 40 N R 22 W, Benton, MO

Built 1976 ADT: 8,275

MO 83 S

Unknown

Over: US 65

S 21 T 40 N R 22 W, Benton, MO

Built 1976 ADT: 7,821

US 65 S

Unknown

Over: MO 83

S 27 T 40 N R 22 W, Benton, MO

Built 1977 ADT: 1,559

US 65 N

Unknown

Over: CRD TRUMAN DAM ACCESS RD

S 9 T 40 N R 22 W, Benton, MO

Built 2010 ADT: 6,880

MO 52 E

Unknown

Over: US 65

S 30 T 43 N R 21 W, Benton, MO

Built 1997 ADT: 4,342

MO 22 E

Unknown

Over: US 63

S 36 T 52 N R 13 W, Boone, MO

Built 1999 ADT: 7,305

US 40 E

Unknown

Over: IS 70

S 7 T 48 N R 13 W, Boone, MO

Built 1958 ADT: 23,198

RT AC E

Unknown

Over: US 63

S 29 T 48 N R 12 W, Boone, MO

Built 1968 ADT: 17,679

RT M E

Unknown

Over: US 63

S 11 T 46 N R 12 W, Boone, MO

Built 1973 ADT: 15,264

RT WW E

Unknown

Over: US 63

S 17 T 48 N R 12 W, Boone, MO

Built 1976 ADT: 26,641

US 63 N

Unknown

Over: MO 740

S 20 T 48 N R 12 W, Boone, MO

Built 1976 ADT: 11,441

US 63 S

Unknown

Over: MO 740

S 20 T 48 N R 12 W, Boone, MO

Built 1976 ADT: 9,283

VANDIVER DR E

Unknown

Over: US 63

S 1 T 48 N R 13 W, Boone, MO

Built 2002 ADT: 16,458

DISCOVERY PKWY S

Unknown

Over: US 63

S 33 T 48 N R 12 W, Boone, MO

Built 2007 ADT: 17,679

SORRELS OVERPASS D

Unknown

Over: IS 70

S 5 T 48 N R 13 W, Boone, MO

Built 1958 ADT: 22,820

OAKLAND GRAVEL RD

Unknown

Over: US 63

S 29 T 49 N R 12 W, Boone, MO

Built 1986 ADT: 8,547

PRATHERSVILLE RD E

Unknown

Over: US 63

S 19 T 49 N R 12 W, Boone, MO

Built 1986 ADT: 6,375

WAGON TRAIL RD S

Unknown

Over: US 63

S 18 T 49 N R 12 W, Boone, MO

Built 1985 ADT: 7,129

US 63 S

Unknown

Over: MO 763

S 13 T 49 N R 13 W, Boone, MO

Built 1985 ADT: 2,332

US 63 N

Unknown

Over: MO 763

S 13 T 49 N R 13 W, Boone, MO

Built 1992 ADT: 2,332

US 63 N

Unknown

Over: CST BROWN STATION RD

S 29 T 49 N R 12 W, Boone, MO

Built 1986 ADT: 4,484

US 63 S

Unknown

Over: CST BROWN STATION RD

S 29 T 49 N R 12 W, Boone, MO

Built 1986 ADT: 4,484

US 63 N

Unknown

Over: RT B

S 32 T 49 N R 12 W, Boone, MO

Built 1986 ADT: 19,762

US 63 S

Unknown

Over: RT B

S 32 T 49 N R 12 W, Boone, MO

Built 1986 ADT: 14,528

MEXICO GRAVEL RD E

Unknown

Over: US 63

S 33 T 49 N R 12 W, Boone, MO

Built 1984 ADT: 16,458

US 63C S

Unknown

Over: US 63

S 5 T 48 N R 12 W, Boone, MO

Built 1986 ADT: 11,771

US 63 N

Unknown

Over: IS 70

S 8 T 48 N R 12 W, Boone, MO

Built 1992 ADT: 25,909

US 63 S

Unknown

Over: CST CLARK LN

S 8 T 48 N R 12 W, Boone, MO

Built 1992 ADT: 27,596

US 63 N

Unknown

Over: US 63C

S 8 T 48 N R 12 W, Boone, MO

Built 1993 ADT: 14,309

US 63 S

Unknown

Over: US 63C

S 8 T 48 N R 12 W, Boone, MO

Built 1993 ADT: 14,309

MO 163 S

Unknown

Over: US 63

S 23 T 47 N R 12 W, Boone, MO

Built 2011 ADT: 14,967

RT Z S

Unknown

Over: IS 70

S 7 T 48 N R 11 W, Boone, MO

Built 2013 ADT: 20,255

RT B S

Unknown

Over: LP 70

S 6 T 48 N R 12 W, Boone, MO

Built 2014 ADT: 11,858

Showing 51-100 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.