St. Louis County, MO

912 public highway bridges

St. Louis County Bridge Snapshot

St. Louis County, Missouri contains 912 public highway bridges in the FHWA National Bridge Inventory. Roughly 21.5% are rated “Good,” 42.2% “Fair,” 3.9% “Poor,” and 3.9% 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.

912
Total Bridges
21.5%
Good
3.9%
Poor
3.9%
Structurally Deficient

Condition Distribution

Good
21.5% (196)
Fair
42.2% (385)
Poor
3.9% (36)
SD
3.9% (36)

All Bridges (912)

82ND BLVD

Fair

Over: RVR DES PERES

S 4 T 45 N R 6 E, St. Louis, MO

Built 2002 Load: 37.8 t ADT: 3,143

FORBY RD

Fair

Over: FLAT CR

S 36 T 44 N R 3 E, St. Louis, MO

Built 2006 Load: 37.8 t ADT: 1,192

IS 44 E

Fair

Over: UP RR

S 2071 T 44 N R 4 E, St. Louis, MO

Built 1983 Load: 37.8 t ADT: 72,614

IS 64 W

Fair

Over: MISSOURI RVR, KATY TRAIL

S 34 T 46 N R 3 E, St. Louis, MO

Built 1991 Load: 37.8 t ADT: 37,898

MO 180 E

Fair

Over: COLDWATER CR

S 20 T 46 N R 6 E, St. Louis, MO

Built 2011 Load: 37.8 t ADT: 33,934

MO 141 S

Fair

Over: LIT CREVE COEUR CR

S 433 T 46 N R 5 E, St. Louis, MO

Built 2012 Load: 37.8 t ADT: 33,691

US 67 N

Fair

Over: BNSF RR

S 16 T 47 N R 7 E, St. Louis, MO

Built 1988 Load: 37.8 t ADT: 10,213

RP IS270E TO MISSO

Fair

Over: NS RR

S 2039 T 46 N R 5 E, St. Louis, MO

Built 1991 Load: 37.8 t ADT: 6,079

IS 255 S

Fair

Over: MISSISSIPPI RVR, UP RR

S 6 T 43 N R 7 E, St. Louis, MO

Built 1990 Load: 37.8 t ADT: 30,251

RT D E

Fair

Over: FEE FEE CR

S 27 T 46 N R 5 E, St. Louis, MO

Built 1966 Load: 38.7 t ADT: 32,720

ROSE AVE

Fair

Over: BLACK CR

S 21 T 45 N R 6 E, St. Louis, MO

Built 1981 Load: 38.7 t ADT: 3,000

BAXTER RD

Fair

Over: GRAND GLAIZE CR

S 36 T 45 N R 4 E, St. Louis, MO

Built 1982 Load: 38.7 t ADT: 8,280

DOUGHERTY FERRY RD

Fair

Over: DES PERES CR

S 4 T 44 N R 5 E, St. Louis, MO

Built 1991 Load: 38.7 t ADT: 28,843

MO 141 S

Fair

Over: CENTRAL MIDLAND RR

S 30 T 46 N R 5 E, St. Louis, MO

Built 2012 Load: 38.7 t ADT: 33,691

MO 141 S

Fair

Over: SMALL LK

S 33 T 47 N R 5 E, St. Louis, MO

Built 1972 Load: 38.7 t ADT: 3,360

OR 64 E

Fair

Over: CREVE COEUR CR

S 13 T 45 N R 4 E, St. Louis, MO

Built 1990 Load: 38.7 t ADT: 5,122

MO 370 W

Fair

Over: COWMIRE CR

S 2038 T 47 N R 5 E, St. Louis, MO

Built 1990 Load: 38.7 t ADT: 23,308

IS 270 W

Fair

Over: BNSF RR

S 34 T 47 N R 7 E, St. Louis, MO

Built 1958 Load: 38.7 t ADT: 28,912

IS 44 E

Fair

Over: FOX CR

S 4 T 43 N R 3 E, St. Louis, MO

Built 1960 Load: 38.7 t ADT: 28,483

IS 44 W

Fair

Over: FOX CR

S 4 T 43 N R 3 E, St. Louis, MO

Built 1960 Load: 38.7 t ADT: 28,483

ROSS AVE

Fair

Over: BR OF CREVE COEUR

S 33 T 46 N R 5 E, St. Louis, MO

Built 1958 Load: 39.6 t ADT: 7,027

DORSETT RD

Fair

Over: FEE FEE CR

S 22 T 46 N R 5 E, St. Louis, MO

Built 1980 Load: 39.6 t ADT: 31,959

NEW FLORISSANT RD

Fair

Over: FOUNTAIN CR

S 27 T 47 N R 6 E, St. Louis, MO

Built 1961 Load: 39.6 t ADT: 24,597

MURDOCH AVE

Fair

Over: BNSF RR

S 1953 T 45 N R 6 E, St. Louis, MO

Built 2012 Load: 39.6 t ADT: 10,485

MO 100 E

Fair

Over: GLAIZE CR

S 31 T 45 N R 5 E, St. Louis, MO

Built 1921 Load: 39.6 t ADT: 39,787

BEAUMONT-ANTIRE RD

Fair

Over: ANTIRE CR

S 33 T 44 N R 4 E, St. Louis, MO

Built 1960 Load: 40.5 t ADT: 3,951

TARTAN GREEN BLVD

Fair

Over: BR OF CAULKS CR

S 5 T 44 N R 4 E, St. Louis, MO

Built 1989 Load: 40.5 t ADT: 1,020

MO 364 W

Fair

Over: MISSOURI RVR

S 13 T 46 N R 4 E, St. Louis, MO

Built 1999 Load: 40.5 t ADT: 31,204

GLENCOE RD

Fair

Over: HAMILTON CR

S 10 T 44 N R 3 E, St. Louis, MO

Built 2017 Load: 40.5 t ADT: 400

MO 370 E

Fair

Over: COWMIRE CR

S 2038 T 47 N R 5 E, St. Louis, MO

Built 1990 Load: 40.5 t ADT: 22,847

MO 340 E

Fair

Over: RVR DES PERES

S 4 T 45 N R 6 E, St. Louis, MO

Built 1962 Load: 40.5 t ADT: 12,270

CREVE COEUR MILL

Fair

Over: FEE FEE CR

S 16 T 46 N R 5 E, St. Louis, MO

Built 1957 Load: 41.4 t ADT: 5,594

BAXTER RD

Fair

Over: BR OF GLAIZE CR

S 35 T 45 N R 4 E, St. Louis, MO

Built 1982 Load: 41.4 t ADT: 7,752

RIVERWOOD PLACE DR

Fair

Over: TESSON TRIB

S 176 T 47 N R 6 E, St. Louis, MO

Built 1989 Load: 41.4 t ADT: 1,000

POND RD

Fair

Over: BONHOMME CR

S 35 T 45 N R 3 E, St. Louis, MO

Built 2003 Load: 41.4 t ADT: 1,200

W WATSON RD

Fair

Over: TRIB B

S 23 T 44 N R 5 E, St. Louis, MO

Built 2011 Load: 41.4 t ADT: 3,240

OLD HALLS FERRY RD

Fair

Over: IS 270

S 31 T 47 N R 7 E, St. Louis, MO

Built 2020 Load: 41.4 t ADT: 10,618

IS 270 W

Fair

Over: COLDWATER CR

S 939 T 47 N R 6 E, St. Louis, MO

Built 2020 Load: 41.4 t ADT: 53,874

IS 270 E

Fair

Over: NS RR

S 2039 T 47 N R 5 E, St. Louis, MO

Built 1960 Load: 42.3 t ADT: 116,395

REDMAN AVE

Fair

Over: BLACK JACK CR

S 29 T 47 N R 7 E, St. Louis, MO

Built 1957 Load: 42.3 t ADT: 4,777

REDMAN AVE

Fair

Over: WATKINS CR

S 28 T 47 N R 7 E, St. Louis, MO

Built 1957 Load: 42.3 t ADT: 4,497

NORTH HANLEY RD

Fair

Over: WABASH AVE, BNSF RR, CRE

S 3 T 46 N R 6 E, St. Louis, MO

Built 1974 Load: 42.3 t ADT: 8,376

MO 141 S

Fair

Over: FENTON CR

S 373 T 43 N R 5 E, St. Louis, MO

Built 1974 Load: 42.3 t ADT: 39,547

TAUSSIG DR

Fair

Over: COWMIRE CR

S 36 T 47 N R 5 E, St. Louis, MO

Built 1992 Load: 42.3 t ADT: 6,000

MO 367 N

Fair

Over: COLDWATER CR

S 16 T 47 N R 7 E, St. Louis, MO

Built 2002 Load: 42.3 t ADT: 14,715

STRECKER RD

Fair

Over: CAULKS CR

S 124 T 45 N R 3 E, St. Louis, MO

Built 2009 Load: 42.3 t ADT: 3,998

CLAYTON RD

Fair

Over: DEER CR

S 18 T 45 N R 6 E, St. Louis, MO

Built 2010 Load: 42.3 t ADT: 12,346

MO 180 E

Fair

Over: UP RR

S 36 T 46 N R 6 E, St. Louis, MO

Built 1988 Load: 42.3 t ADT: 8,284

IS 270 E

Fair

Over: COWMIRE CR

S 131 T 46 N R 5 E, St. Louis, MO

Built 1960 Load: 43.2 t ADT: 116,395

AUBUCHON RD

Fair

Over: COWMIRE CR

S 24 T 46 N R 7 E, St. Louis, MO

Built 1964 Load: 43.2 t ADT: 8,094

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

Related

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