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)

Sort:

LILAC AVE

Over: WATKINS CR

S 3 T 47 N R 5 E, St. Louis, MO

Built 1964 Load: 22.5 t ADT: 10,279

HUDSON DR

Over: DELWOOD CR

S 1 T 46 N R 6 E, St. Louis, MO

Built 1920 Load: 22.5 t ADT: 2,924

JUSTICE RD

Over: NEW HALLS FERRY CR

S 11 T 47 N R 6 E, St. Louis, MO

Built 1983 Load: 22.5 t ADT: 1,127

BOOKBINDER DR

Over: TRIB CREVE COEUR C

S 32 T 46 N R 5 E, St. Louis, MO

Built 1966 Load: 22.5 t ADT: 3,161

LINK AVE

Over: MIDLAND CR

S 25 T 46 N R 5 E, St. Louis, MO

Built 1986 Load: 22.5 t ADT: 3,808

DUTCH MILL RD

Over: GLAIZE CR

S 30 T 45 N R 5 E, St. Louis, MO

Built 1972 Load: 22.5 t ADT: 2,697

CRESTED VIEW DR

Over: E TRIB OF FEE FEE

S 35 T 46 N R 5 E, St. Louis, MO

Built 1978 Load: 22.5 t ADT: 623

OAKWOOD DR

Over: FENTON CR

S 29 T 44 N R 5 E, St. Louis, MO

Built 1965 Load: 22.5 t ADT: 766

RUE DE FLEUR DR

Over: SMITH CR

S 730 T 45 N R 5 E, St. Louis, MO

Built 1970 Load: 22.5 t ADT: 950

COUCH AVE

Over: UP RR

S 2 T 44 N R 5 E, St. Louis, MO

Built 1986 Load: 22.5 t ADT: 2,845

OLD MERAMEC STA RD

Over: GRAND GLAIZE CR

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

Built 1976 Load: 22.5 t ADT: 3,000

HOWARD GEORGE RD

Over: GRAND GLAIZE CR

S 6 T 44 N R 5 E, St. Louis, MO

Built 1977 Load: 22.5 t ADT: 3,000

OLD SULPHER SPRNG

Over: GRAND GLAZE CR

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

Built 1979 Load: 22.5 t ADT: 600

BORMAN DR

Over: BR OF FEE FEE CR

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

Built 1980 Load: 22.5 t ADT: 4,000

FEATHERSTONE DR

Over: BR OF GRAND GLAIZE

S 20 T 45 N R 5 E, St. Louis, MO

Built 1973 Load: 22.5 t ADT: 500

MASON KNOLL DR

Over: BR OF GRAND GLAIZE

S 20 T 45 N R 5 E, St. Louis, MO

Built 1979 Load: 22.5 t ADT: 40

BARRETT STA RD

Over: BR OF GRAND GLAIZE

S 32 T 45 N R 5 E, St. Louis, MO

Built 1980 Load: 22.5 t ADT: 500

THORNTON RD

Over: SHADY GROVE CR

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

Built 1965 Load: 22.5 t ADT: 500

S BRENTWOOD BLVD

Over: SHADY GROVE CR

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

Built 1900 Load: 22.5 t ADT: 6,000

PLYMOUTH AVE

Over: BR RVR DES PERES

S 1 T 45 N R 6 E, St. Louis, MO

Built 1950 Load: 22.5 t ADT: 1,000

BIG BEND WOODS DR

Over: FISHPOT CR

S 12 T 44 N R 4 E, St. Louis, MO

Built 1970 Load: 22.5 t ADT: 320

COUNTRY STONE DR

Over: BR GRAND GLAIZE CR

S 8 T 44 N R 5 E, St. Louis, MO

Built 1978 Load: 22.5 t ADT: 2,500

BRASHER ST

Over: DRAINAGE CHANNEL

S 368 T 45 N R 3 E, St. Louis, MO

Built 2015 Load: 22.5 t ADT: 500

IS 270 E

Over: RP IS270E TO MO370W

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

Built 1990 Load: 22.5 t ADT: 58,349

US 67 S

Over: DEER CR

S 13 T 45 N R 5 E, St. Louis, MO

Built 1930 Load: 22.5 t ADT: 27,908

COUCH AVE

Over: SUGAR CR

S 2 T 44 N R 5 E, St. Louis, MO

Built 1965 Load: 23.4 t ADT: 2,845

MO 100 E

Over: BR GRAND GLAIZE CR

S 32 T 45 N R 5 E, St. Louis, MO

Built 1920 Load: 23.4 t ADT: 39,787

OR 44 E

Over: WILLIAMS CR

S 880 T 44 N R 5 E, St. Louis, MO

Built 1958 Load: 23.4 t ADT: 984

KINGSLAND AVE

Over: NE BR RVR DES PERE

S 2 T 46 N R 6 E, St. Louis, MO

Built 1938 Load: 24.3 t ADT: 5,000

IS 44 E

Over: BNSF RR, CR

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

Built 1983 Load: 24.3 t ADT: 72,614

HOLLOWAY RD

Over: GRAND GLAIZE CR

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

Built 1976 Load: 25.2 t ADT: 13,260

MARK WESLEY LN

Over: BR OF FISHPOT CR

S 11 T 44 N R 4 E, St. Louis, MO

Built 1991 Load: 25.2 t ADT: 150

MARK WESLEY LN

Over: BR OF FISHPOT CR

S 11 T 44 N R 4 E, St. Louis, MO

Built 1991 Load: 25.2 t ADT: 150

LYNN TOWN DR

Over: COLDWATER CR

S 17 T 46 N R 7 E, St. Louis, MO

Built 1984 Load: 25.2 t ADT: 600

UNION RD

Over: GRAVOIS CR

S 26 T 44 N R 6 E, St. Louis, MO

Built 1967 Load: 25.2 t ADT: 11,550

MELISSA-JO LN

Over: LEMAY CR

S 8 T 43 N R 6 E, St. Louis, MO

Built 1976 Load: 25.2 t ADT: 861

WESTGLEN FARM DR

Over: BR OF CAULKS CR

S 31 T 45 N R 4 E, St. Louis, MO

Built 1985 Load: 25.2 t ADT: 2,220

GLENCOE RD

Over: BR OF HAMILTON CR

S 13 T 44 N R 5 E, St. Louis, MO

Built 1962 Load: 25.2 t ADT: 400

KIEFER CREEK RD

Over: KIEFER CR

S 14 T 44 N R 4 E, St. Louis, MO

Built 1991 Load: 25.2 t ADT: 350

OR 270 E

Over: BNSF RR

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

Built 1931 Load: 25.2 t ADT: 1,752

PARKER RD

Over: PADDOCK CR

S 22 T 47 N R 6 E, St. Louis, MO

Built 1979 Load: 26.1 t ADT: 6,833

W FLORISSANT AVE

Over: DELLWOOD CR

S 6 T 46 N R 7 E, St. Louis, MO

Built 1967 Load: 26.1 t ADT: 28,747

BARRETT STATION RD

Over: TRIB GRAND GLAIZE

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

Built 1985 Load: 26.1 t ADT: 6,429

GRAVOIS RD E

Over: FENTON CR

S 19 T 44 N R 5 E, St. Louis, MO

Built 1970 Load: 26.1 t ADT: 9,015

ORRVILLE RD

Over: W BR CAULKS CR

S 24 T 45 N R 3 E, St. Louis, MO

Built 2006 Load: 26.1 t ADT: 400

PARDEE RD

Over: GRAVOIS CR

S 17 T 44 N R 6 E, St. Louis, MO

Built 2009 Load: 26.1 t ADT: 7,650

MO 180 E

Over: JAMES CR

S 2 T 46 N R 5 E, St. Louis, MO

Built 1934 Load: 26.1 t ADT: 18,291

FOURNIER DR

Over: BR OF GRAVOIS CR

S 1936 T 44 N R 6 E, St. Louis, MO

Built 2011 Load: 26.1 t ADT: 600

US 61 S

Over: TWO MILE CR

S 25 T 45 N R 5 E, St. Louis, MO

Built 1930 Load: 26.1 t ADT: 23,593

RHL DR

Over: DRAINAGE CHANNEL

S 125 T 48 N R 4 E, St. Louis, MO

Built 2000 Load: 27.0 t ADT: 5,192

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

Related

Browse all → | Rankings →

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