St. Louis County, MO

912 public highway bridges

St. Louis County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, St. Louis County, Missouri contains 912 public highway bridges. Roughly 21.5% are rated “Good,” 42.2% “Fair,” and 3.9% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

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

912
Total Bridges
21.5%
Good
42.2%
Fair
3.9%
Poor Condition

Condition Distribution

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

All Bridges (912)

IS 44 E

Fair

Over: BR GRAVOIS CR

S 12 T 44 N R 6 E, St. Louis, MO

Built 1969 Load: 52.2 t ADT: 108,141

RIVERVIEW DR

Fair

Over: WATKINS CR

S 36 T 47 N R 7 E, St. Louis, MO

Built 1947 Load: 52.2 t ADT: 3,955

WASHINGTON ST

Fair

Over: COLD WATER CR

S 28 T 47 N R 6 E, St. Louis, MO

Built 1930 Load: 52.2 t ADT: 17,556

MO 30 E

Fair

Over: SUNSET HILL CR

S 373 T 44 N R 5 E, St. Louis, MO

Built 1968 Load: 52.2 t ADT: 41,409

MO 30 E

Fair

Over: FENTON CR

S 373 T 44 N R 5 E, St. Louis, MO

Built 1970 Load: 52.2 t ADT: 34,987

KOCH RD S

Fair

Over: MARTIGNEY CR

S 3119 T 43 N R 7 E, St. Louis, MO

Built 1976 Load: 52.2 t ADT: 4,433

MO 115 S

Fair

Over: MALINE CR

S 48 T 46 N R 6 E, St. Louis, MO

Built 1979 Load: 52.2 t ADT: 8,904

RP MO115N TO IS170

Fair

Over: MALINE CR

S 48 T 46 N R 6 E, St. Louis, MO

Built 1979 Load: 52.2 t ADT: 2,921

TOPPING RD N

Fair

Over: DITCH

S 28 T 45 N R 5 E, St. Louis, MO

Built 2004 Load: 52.2 t ADT: 2,021

MO 141 S

Fair

Over: MARYVILLE CR

S 109 T 45 N R 5 E, St. Louis, MO

Built 2010 Load: 52.2 t ADT: 31,692

MO 141 S

Fair

Over: CREVE COEUR CR

S 367 T 45 N R 5 E, St. Louis, MO

Built 2012 Load: 52.2 t ADT: 12,881

MO 109 S

Fair

Over: CLIFTY CR

S 31 T 44 N R 4 E, St. Louis, MO

Built 1988 Load: 52.2 t ADT: 24,333

US 67 S

Fair

Over: COLDWATER BR

S 939 T 45 N R 5 E, St. Louis, MO

Built 1989 Load: 52.2 t ADT: 20,336

MO 109 S

Fair

Over: POND CR

S 24 T 44 N R 3 E, St. Louis, MO

Built 1997 Load: 52.2 t ADT: 14,768

ALT RD S

Fair

Over: POND CR

S 24 T 44 N R 3 E, St. Louis, MO

Built 1997 Load: 52.2 t ADT: 923

IS 270 E

Fair

Over: MATTESE CR

S 1998 T 44 N R 6 E, St. Louis, MO

Built 1967 Load: 52.2 t ADT: 167,402

MARSHALL RD

Fair

Over: GRAND GLAIZE CR

S 16 T 44 N R 5 E, St. Louis, MO

Built 1981 Load: 53.1 t ADT: 4,171

PENNSYLVANIA AVE

Fair

Over: RVR DES PERES

S 378 T 45 N R 6 E, St. Louis, MO

Built 1996 Load: 53.1 t ADT: 750

GREGORY LN S

Fair

Over: FENTON CR

S 27 T 44 N R 5 E, St. Louis, MO

Built 1997 Load: 53.1 t ADT: 224

IS 55 N

Fair

Over: CRD BUTLER HILL RD

S 4 T 43 N R 6 E, St. Louis, MO

Built 1995 Load: 53.1 t ADT: 65,365

IS 55 S

Fair

Over: CRD BUTLER HILL RD

S 4 T 43 N R 6 E, St. Louis, MO

Built 1995 Load: 53.1 t ADT: 76,365

IS 44 E

Fair

Over: WILLIAMS CR

S 879 T 44 N R 4 E, St. Louis, MO

Built 1960 Load: 53.1 t ADT: 40,274

WILDHORSE PKWY DR

Fair

Over: BONHOMME CR

S 479 T 45 N R 3 E, St. Louis, MO

Built 1989 Load: 54.0 t ADT: 3,556

CLAYTON RD

Fair

Over: BLACK CR

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

Built 1987 Load: 54.0 t ADT: 12,520

SCHUETZ RD

Fair

Over: TRIB OF FEE FEE CR

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

Built 1997 Load: 54.0 t ADT: 8,070

US 67 S

Fair

Over: BNSF RR

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

Built 2002 Load: 54.0 t ADT: 10,641

GRAHAM RD

Fair

Over: FOUNTAIN CR

S 28 T 47 N R 6 E, St. Louis, MO

Built 2010 Load: 54.0 t ADT: 21,018

OLD JAMESTOWN RD

Fair

Over: COLDWATER CR

S 17 T 47 N R 7 E, St. Louis, MO

Built 1987 Load: 54.9 t ADT: 2,457

RT D E

Fair

Over: UP RR

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

Built 2004 Load: 54.9 t ADT: 16,360

WOODS RD

Fair

Over: HAMILTON CR

S 14 T 44 N R 3 E, St. Louis, MO

Built 2016 Load: 54.9 t ADT: 1,000

KEHRS MILL RD

Fair

Over: CAULKS CR

S 18 T 45 N R 4 E, St. Louis, MO

Built 1995 Load: 55.8 t ADT: 5,529

BELLEFONTAINE RD

Fair

Over: MALINE CR

S 9 T 46 N R 7 E, St. Louis, MO

Built 1922 Load: 56.7 t ADT: 12,412

AVALON HILLS DR

Fair

Over: N TRIB OF WILLIAMS

S 30 T 44 N R 5 E, St. Louis, MO

Built 1999 Load: 56.7 t ADT: 2,019

NORTH AND SOUTH RD

Fair

Over: BR OF RVR DES PERE

S 3 T 45 N R 6 E, St. Louis, MO

Built 1959 Load: 56.7 t ADT: 3,839

FEE FEE RD

Fair

Over: MIDLAND CR

S 23 T 46 N R 5 E, St. Louis, MO

Built 2007 Load: 56.7 t ADT: 8,394

OR 64 W

Fair

Over: CREVE COEUR CR

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

Built 1988 Load: 56.7 t ADT: 4,272

PATTERSON RD

Fair

Over: NEW HALLS FERRY CR

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

Built 1998 Load: 57.6 t ADT: 19,702

BUCKHURST DR

Fair

Over: KIEFER CR

S 9 T 44 N R 4 E, St. Louis, MO

Built 1994 Load: 58.5 t ADT: 1,360

CHARBONIER RD

Fair

Over: BR OF COWMIRE CR

S 24 T 47 N R 5 E, St. Louis, MO

Built 2003 Load: 58.5 t ADT: 6,246

RT D E

Fair

Over: BR RVR DES PERES

S 35 T 46 N R 6 E, St. Louis, MO

Built 2012 Load: 58.5 t ADT: 13,500

LUCAS-HUNT RD

Fair

Over: MALINE CR

S 8 T 46 N R 7 E, St. Louis, MO

Built 1974 Load: 59.4 t ADT: 16,241

CASTLEWOOD RD

Fair

Over: KIEFER CR

S 15 T 44 N R 4 E, St. Louis, MO

Built 1962 Load: 59.4 t ADT: 242

MO 21 S

Fair

Over: BUTLER LK

S 13 T 43 N R 5 E, St. Louis, MO

Built 2002 Load: 60.3 t ADT: 18,038

CHAMBERS RD

Fair

Over: BNSF RR

S 3 T 46 N R 7 E, St. Louis, MO

Built 1936 Load: 61.2 t ADT: 8,937

FLORISSANT RD

Fair

Over: MALINE CR

S 2504 T 46 N R 6 W, St. Louis, MO

Built 1997 Load: 61.2 t ADT: 26,955

BOWLES AVE

Fair

Over: YARNELL CR

S 20 T 44 N R 5 E, St. Louis, MO

Built 1980 Load: 62.1 t ADT: 22,842

FOREST KNOLL DR

Fair

Over: FENTON CR

S 34 T 44 N R 5 E, St. Louis, MO

Built 2003 Load: 62.1 t ADT: 6,700

WASHINGTON ST

Fair

Over: FOUNTAIN CR

S 28 T 47 N R 6 E, St. Louis, MO

Built 1930 Load: 63.0 t ADT: 7,386

ASHBY RD

Fair

Over: MIDLAND BLVD

S 30 T 46 N R 6 E, St. Louis, MO

Built 1993 Load: 63.0 t ADT: 14,413

CONWAY RD

Fair

Over: CREVE COEUR CR

S 11 T 45 N R 4 E, St. Louis, MO

Built 2004 Load: 63.0 t ADT: 6,780

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.