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)

FERGUSON ST

Good

Over: TRIB OF RVR DES PE

S 2 T 45 N R 6 E, St. Louis, MO

Built 2014 Load: 64.8 t ADT: 1,000

CREVE COEUR MILL

Good

Over: CREVE COEUR CR

S 31 T 46 N R 5 E, St. Louis, MO

Built 2018 Load: 64.8 t ADT: 3,698

BOUQUET RD

Good

Over: TAVERN CR

S 7 T 44 N R 3 E, St. Louis, MO

Built 2017 Load: 65.7 t ADT: 180

ALLENTON RD

Good

Over: UP RR

S 34 T 44 N R 3 E, St. Louis, MO

Built 2024 Load: 65.7 t ADT: 1,000

LACKLAND RD

Good

Over: E TRIB OF FEE FEE

S 26 T 46 N R 5 E, St. Louis, MO

Built 2018 Load: 66.6 t ADT: 5,192

CLAYCHESTER DR

Good

Over: TWO MILE CR

S 26 T 45 N R 5 E, St. Louis, MO

Built 2014 Load: 68.4 t ADT: 950

OLD HALLS FERRY RD

Good

Over: HALLS FERRY CR

S 32 T 47 N R 7 E, St. Louis, MO

Built 2018 Load: 69.3 t ADT: 10,330

BEMISTON AVE-RMP D

Good

Over: FOREST PARK PKWY

S 15 T 45 N R 6 E, St. Louis, MO

Built 2005 Load: 70.2 t ADT: 1,322

BARRETT STATION RD

Good

Over: UP RR

S 9 T 44 N R 5 E, St. Louis, MO

Built 2004 Load: 71.1 t ADT: 1,435

RIVER CITY CASINO

Good

Over: UP RR

S 19 T 44 N R 6 E, St. Louis, MO

Built 2009 Load: 71.1 t ADT: 8,029

BRAESHIRE DR

Good

Over: BR GRAND GLAIZE CR

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

Built 2008 Load: 72.9 t ADT: 3,095

VON TALGE RD

Good

Over: BR OF MATTESE CR

S 33 T 44 N R 6 E, St. Louis, MO

Built 1990 Load: 74.7 t ADT: 3,196

WEIDMAN RD

Good

Over: GRAND GLAIZE CR

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

Built 2001 Load: 74.7 t ADT: 4,626

FOREST PARK PKWY E

Good

Over: BRENTWOOD BLVD

S 15 T 45 N R 6 E, St. Louis, MO

Built 2005 Load: 74.7 t ADT: 20,527

FOREST PARK PKWY W

Good

Over: BRENTWOOD BLVD

S 16 T 45 N R 6 E, St. Louis, MO

Built 2005 Load: 74.7 t ADT: 16,983

NE LUCAS-HUNT RD

Good

Over: NS RR

S 18 T 46 N R 7 E, St. Louis, MO

Built 1941 Load: 76.5 t ADT: 7,737

WOODSON RD

Good

Over: RVR DES PERES

S 32 T 46 N R 6 E, St. Louis, MO

Built 2009 Load: 76.5 t ADT: 8,563

OLD HALLS FERRY RD

Good

Over: COLD WATER CR

S 13 T 47 N R 6 E, St. Louis, MO

Built 2005 Load: 81.9 t ADT: 5,663

WILD HORSE CR RD

Good

Over: CHESTERFIELD CR

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

Built 2007 Load: 89.1 t ADT: 7,807

WILSON AVE

Good

Over: WILSON CR TRIB

S 16 T 45 N R 4 E, St. Louis, MO

Built 2018 Load: 90.0 t ADT: 1,798

IS 64 E

Good

Over: METROLINK

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

Built 2008 Load: 92.7 t ADT: 151,691

BAUMGARTNER RD

Good

Over: BR OF MATTESE CR

S 15 T 43 N R 6 E, St. Louis, MO

Built 1982 Load: 99.9 t ADT: 12,499

MERAMEC BOTTOM RD

Good

Over: MERAMEC RVR TRIB

S 17 T 43 N R 6 E, St. Louis, MO

Built 2000 Load: 99.9 t ADT: 19,169

MERAMEC BOTTOM

Good

Over: MERAMEC RVR TRIB

S 17 T 43 N R 6 E, St. Louis, MO

Built 2000 Load: 99.9 t ADT: 3,396

BIG BEND RD

Good

Over: TRIB TO FISHPOT CR

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

Built 2008 Load: 99.9 t ADT: 27,120

BAXTER RD

Good

Over: CREVE COEUR CR

S 22 T 45 N R 4 E, St. Louis, MO

Built 2012 Load: 99.9 t ADT: 14,233

N ELM AVE

Poor

Over: SHADY GROVE CR

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

Built 1989 Load: 18.0 t ADT: 13,730

FOLK RD

Poor

Over: BLACK CREEK BR

S 2484 T 45 N R 6 E, St. Louis, MO

Built 1987 Load: 19.8 t ADT: 3,000

FERGUSON AVE

Poor

Over: MALINE CR

S 393 T 46 N R 6 E, St. Louis, MO

Built 1977 Load: 21.6 t ADT: 5,973

LADUE FARM RD

Poor

Over: CREVE COEUR CR

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

Built 1978 Load: 22.5 t ADT: 550

VORHOF DR

Poor

Over: BLACK JACK CR

S 5 T 46 N R 7 E, St. Louis, MO

Built 1956 Load: 22.5 t ADT: 2,921

SPANISH POND RD

Poor

Over: BNSF RR

S 22 T 47 N R 7 E, St. Louis, MO

Built 1960 Load: 22.5 t ADT: 1,947

WEIDMAN RD

Poor

Over: GRAND GLAIZE CR

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

Built 1973 Load: 22.5 t ADT: 8,214

TRIANON LN

Poor

Over: BR OF GRAND GLAIZE

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

Built 1971 Load: 22.5 t ADT: 700

DALE AVE

Poor

Over: CLAYTONIA CR

S 22 T 45 N R 6 E, St. Louis, MO

Built 1955 Load: 22.5 t ADT: 3,000

RIEGER RD

Poor

Over: BONHOMME CR

S 385 T 45 N R 3 E, St. Louis, MO

Built 1940 Load: 22.5 t ADT: 730

CENTAUR RD

Poor

Over: BR OF WILD HORSE C

S 1956 T 45 N R 3 E, St. Louis, MO

Built 1967 Load: 24.3 t ADT: 1,136

MO 366 E

Poor

Over: GRAVOIS CR

S 8 T 44 N R 6 E, St. Louis, MO

Built 1931 Load: 25.2 t ADT: 18,756

WILD HORSE CR RD

Poor

Over: BR OF WILD HORSE C

S 1956 T 45 N R 3 E, St. Louis, MO

Built 1962 Load: 26.1 t ADT: 1,120

RT AC S

Poor

Over: BR MALINE CR

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

Built 1968 Load: 28.8 t ADT: 15,413

WHITE CLIFF LN

Poor

Over: GRAVOIS CR

S 9 T 44 N R 6 E, St. Louis, MO

Built 1977 Load: 29.7 t ADT: 850

IS 44 W

Poor

Over: MERAMEC RVR, SOUTH OUTER

S 32 T 44 N R 4 E, St. Louis, MO

Built 1968 Load: 30.6 t ADT: 38,033

JAMES S MCDONNELL

Poor

Over: COLDWATER CR

S 5 T 46 N R 6 E, St. Louis, MO

Built 1951 Load: 31.5 t ADT: 10,699

BELLGROVE DR

Poor

Over: WATKINS CR

S 34 T 46 N R 7 E, St. Louis, MO

Built 1999 Load: 32.4 t ADT: 300

RAILROAD ST

Poor

Over: BIG BEND BLVD

S 27 T 45 N R 6 E, St. Louis, MO

Built 1960 Load: 33.3 t ADT: 643

MO 21 S

Poor

Over: PEDESTRAIN TRAIL

S 2995 T 44 N R 6 E, St. Louis, MO

Built 1969 Load: 33.3 t ADT: 18,182

IS 270 E

Poor

Over: MALINE CR

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

Built 1931 Load: 42.3 t ADT: 113,831

REAVIS BARRACKS RD

Poor

Over: GRAVOIS CR

S 25 T 44 N R 6 E, St. Louis, MO

Built 1959 Load: 43.2 t ADT: 15,054

IS 170 E

Poor

Over: RVR DES PERES

S 29 T 46 N R 6 E, St. Louis, MO

Built 1968 Load: 43.2 t ADT: 94,602

WASHINGTON ST

Poor

Over: BR OF COLD WATER C

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

Built 1963 Load: 44.1 t ADT: 7,794

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