Boone County, MO

334 public highway bridges

Boone County Bridge Snapshot

Boone County, Missouri contains 334 public highway bridges in the FHWA National Bridge Inventory. Roughly 44.6% are rated “Good,” 39.5% “Fair,” 3.3% “Poor,” and 3.3% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in MO are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

334

Total Bridges

44.6%

Good

3.3%

Poor

3.3%

Structurally Deficient

Condition Distribution

Good

44.6% (149)

Fair

39.5% (132)

Poor

3.3% (11)

SD

3.3% (11)

All Bridges (334)

Sort:

MO 22 E

Over: US 63

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

Built 1999 ADT: 7,305

US 40 E

Over: IS 70

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

Built 1958 ADT: 23,198

RT AC E

Over: US 63

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

Built 1968 ADT: 17,679

RT M E

Over: US 63

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

Built 1973 ADT: 15,264

RT WW E

Over: US 63

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

Built 1976 ADT: 26,641

US 63 N

Over: MO 740

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

Built 1976 ADT: 11,441

US 63 S

Over: MO 740

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

Built 1976 ADT: 9,283

VANDIVER DR E

Over: US 63

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

Built 2002 ADT: 16,458

DISCOVERY PKWY S

Over: US 63

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

Built 2007 ADT: 17,679

SORRELS OVERPASS D

Over: IS 70

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

Built 1958 ADT: 22,820

OAKLAND GRAVEL RD

Over: US 63

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

Built 1986 ADT: 8,547

PRATHERSVILLE RD E

Over: US 63

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

Built 1986 ADT: 6,375

WAGON TRAIL RD S

Over: US 63

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

Built 1985 ADT: 7,129

US 63 S

Over: MO 763

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

Built 1985 ADT: 2,332

US 63 N

Over: MO 763

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

Built 1992 ADT: 2,332

US 63 N

Over: CST BROWN STATION RD

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

Built 1986 ADT: 4,484

US 63 S

Over: CST BROWN STATION RD

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

Built 1986 ADT: 4,484

US 63 N

Over: RT B

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

Built 1986 ADT: 19,762

US 63 S

Over: RT B

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

Built 1986 ADT: 14,528

MEXICO GRAVEL RD E

Over: US 63

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

Built 1984 ADT: 16,458

US 63C S

Over: US 63

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

Built 1986 ADT: 11,771

US 63 N

Over: IS 70

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

Built 1992 ADT: 25,909

US 63 S

Over: CST CLARK LN

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

Built 1992 ADT: 27,596

US 63 N

Over: US 63C

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

Built 1993 ADT: 14,309

US 63 S

Over: US 63C

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

Built 1993 ADT: 14,309

MO 163 S

Over: US 63

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

Built 2011 ADT: 14,967

RT Z S

Over: IS 70

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

Built 2013 ADT: 20,255

RT B S

Over: LP 70

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

Built 2014 ADT: 11,858

IS 70 W

Over: MO 763

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

Built 2015 ADT: 8,834

IS 70 W

Over: CST GARTH AVE

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

Built 2016 ADT: 5,192

IS 70 E

Over: LP 70

S 2 T 48 N R 13 W, Boone, MO

Built 2015 ADT: 11,777

IS 70 E

Over: CST GARTH AVE

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

Built 2016 ADT: 5,192

IS 70 E

Over: MO 763

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

Built 2016 ADT: 8,632

MO 740 E

Over: IS 70

S 10 T 48 N R 13 W, Boone, MO

Built 1958 ADT: 22,820

IS 70 E

Over: RT J

S 9 T 48 N R 14 W, Boone, MO

Built 1985 ADT: 1,350

IS 70 W

Over: RT J

S 9 T 48 N R 14 W, Boone, MO

Built 1985 ADT: 1,350

RT BB E

Over: IS 70

S 7 T 48 N R 14 W, Boone, MO

Built 2022 ADT: 18,613

US 63C S

Over: IS 70

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

Built 1961 ADT: 25,909

RT B S

Over: IS 70

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

Built 1957 ADT: 28,285

MO 163 S

Over: IS 70

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

Built 1957 ADT: 35,718

ST CHARLES RD E

Over: IS 70

S 10 T 48 N R 12 W, Boone, MO

Built 1957 ADT: 22,213

RP IS70W TO LP70W

Over: IS 70

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

Built 1957 ADT: 29,410

RT F S

Over: PERCHE CREEK

S 19 T 51 N R 13 W, Boone, MO

Built 1953 Load: 10.8 t ADT: 270

GIESING HILL RD

Over: SMALL CREEK

S 22 T 45 N R 12 W, Boone, MO

Built 1981 Load: 11.7 t ADT: 35

JAY JAY RD

Over: SILVER FORK CR

S 29 T 51 N R 11 W, Boone, MO

Built 1955 Load: 13.5 t ADT: 200

PINNACLES RD

Over: SILVER FORK CR

S 12 T 50 N R 12 W, Boone, MO

Built 1975 Load: 14.4 t ADT: 300

OLD HWY 124

Over: SILVER FORK CR

S 9 T 50 N R 11 W, Boone, MO

Built 1950 Load: 14.4 t ADT: 200

MO 163 S

Over: GANS CR

S 7 T 47 N R 12 W, Boone, MO

Built 1966 Load: 16.2 t ADT: 3,464

JUDY SCHOOL RD

Over: CEDAR CR

S 22 T 49 N R 11 W, Boone, MO

Built 1920 Load: 16.2 t ADT: 25

BARNES RD

Over: SILVER FK CR

S 27 T 51 N R 12 W, Boone, MO

Built 1970 Load: 17.1 t ADT: 100

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026