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)

SULPHUR SPRING RD

Good

Over: FISHPOT CR

S 1 T 44 N R 4 E, St. Louis, MO

Built 2002 Load: 47.7 t ADT: 12,604

DUBOURG LN

Good

Over: MATTESE CR

S 32 T 44 N R 6 E, St. Louis, MO

Built 2008 Load: 47.7 t ADT: 457

HANLEY RD S

Good

Over: CST EAGER RD

S 22 T 45 N R 20 W, St. Louis, MO

Built 2008 Load: 47.7 t ADT: 28,805

NEW BALLWIN ROAD

Good

Over: SPRING BR

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

Built 2021 Load: 47.7 t ADT: 772

CYPRESS RD

Good

Over: CYPRESS CR TRIB

S 18 T 46 N R 6 E, St. Louis, MO

Built 1975 Load: 48.6 t ADT: 12,571

TURNBERRY PLACE DR

Good

Over: BR OF CAULKS CR

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

Built 1989 Load: 48.6 t ADT: 600

KIEFER CREEK RD

Good

Over: KIEFER CR

S 9 T 49 N R 4 E, St. Louis, MO

Built 2001 Load: 48.6 t ADT: 7,355

DODDRIDGE RD

Good

Over: MIDLAND CR

S 3069 T 46 N R 5 E, St. Louis, MO

Built 2006 Load: 48.6 t ADT: 4,370

HARDT RD

Good

Over: WILDHORSE CR

S 6 T 44 N R 3 E, St. Louis, MO

Built 2009 Load: 48.6 t ADT: 600

RAMSEY LN

Good

Over: FISHPOT CR

S 34 T 45 N R 4 E, St. Louis, MO

Built 2018 Load: 48.6 t ADT: 4,000

GREGORY CT

Good

Over: BR OF MATTESE CR

S 29 T 44 N R 6 E, St. Louis, MO

Built 1996 Load: 49.5 t ADT: 808

US 61 S

Good

Over: MATTESE CR

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

Built 2003 Load: 49.5 t ADT: 22,770

MO 367 S

Good

Over: COLDWATER CR

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

Built 2005 Load: 49.5 t ADT: 14,715

SE LAFAYETTE CTR

Good

Over: GRAND GLAIZE CR

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

Built 2011 Load: 49.5 t ADT: 1,020

TIMBERLK MANR PKWY

Good

Over: BR CREVE COEUR CR

S 14 T 45 N R 4 E, St. Louis, MO

Built 2014 Load: 49.5 t ADT: 1,900

STRECKER RD

Good

Over: CAULKS CR

S 19 T 45 N R 5 E, St. Louis, MO

Built 2019 Load: 49.5 t ADT: 1,586

ALLEN RD

Good

Over: UP RR

S 30 T 44 N R 4 E, St. Louis, MO

Built 2019 Load: 49.5 t ADT: 369

HEINTZ ROAD

Good

Over: BRANCH OF MATTESE

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

Built 2022 Load: 49.5 t ADT: 6,582

SULPHUR SPRING RD

Good

Over: W TRIB FISHPOT CR

S 13 T 44 N R 4 E, St. Louis, MO

Built 2005 Load: 50.4 t ADT: 5,448

MASON RD

Good

Over: SMITH CR

S 1923 T 45 N R 5 E, St. Louis, MO

Built 2013 Load: 50.4 t ADT: 12,294

FOX CREEK RD

Good

Over: FOX CR

S 19 T 44 N R 3 E, St. Louis, MO

Built 2015 Load: 50.4 t ADT: 1,300

WYNCREST DR

Good

Over: BR GRAND GLAIZE CR

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

Built 2022 Load: 50.4 t ADT: 3,173

MO 364 E

Good

Over: CREVE COEUR LK

S 1929 T 46 N R 5 E, St. Louis, MO

Built 1999 Load: 51.3 t ADT: 58,218

MODEL REALTY RD

Good

Over: FOX CR

S 32 T 44 N R 3 E, St. Louis, MO

Built 1992 Load: 51.3 t ADT: 600

HUDSON DRIVE

Good

Over: BLACK JACK CR

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

Built 2022 Load: 51.3 t ADT: 3,655

VORHOF DRIVE

Good

Over: BLACK JACK CRK

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

Built 2022 Load: 51.3 t ADT: 2,921

BIG BEND BLVD

Good

Over: GRAND GLAIZE CR

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

Built 2000 Load: 52.2 t ADT: 9,412

RVR CITY CASINO

Good

Over: KAYSER CR

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

Built 2009 Load: 52.2 t ADT: 8,608

KIEFER CREEK RD

Good

Over: BR OF KIEFER CR

S 10 T 44 N R 4 E, St. Louis, MO

Built 1999 Load: 54.0 t ADT: 6,520

MO 30 E

Good

Over: GRAVIOS CR

S 3066 T 44 N R 6 E, St. Louis, MO

Built 2008 Load: 54.0 t ADT: 21,845

MO 141 N

Good

Over: GRAND GLAIZE CR

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

Built 1997 Load: 54.0 t ADT: 25,616

MO 141 S

Good

Over: GRAND GLAIZE CR

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

Built 1997 Load: 54.0 t ADT: 25,616

MC DONNELL BLVD

Good

Over: METROLINK

S 4 T 46 N R 6 E, St. Louis, MO

Built 1993 Load: 54.9 t ADT: 3,079

RT D W

Good

Over: UP RR

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

Built 2004 Load: 54.9 t ADT: 16,360

FOREST PARK PKWY E

Good

Over: HANLEY RD

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

Built 2005 Load: 55.8 t ADT: 11,603

FOREST PARK PKWY W

Good

Over: HANLEY RD

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

Built 2005 Load: 55.8 t ADT: 9,479

VANCE RD

Good

Over: FISHPOT CR

S 2999 T 44 N R 5 E, St. Louis, MO

Built 2018 Load: 55.8 t ADT: 10,679

WHITECLIFF PARK LN

Good

Over: GRAVOIS CRK

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

Built 2024 Load: 55.8 t ADT: 850

S CENTRAL AV-RMP C

Good

Over: FOREST PARK PKWY, SHAW P

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

Built 2005 Load: 57.6 t ADT: 7,797

PARKER RD

Good

Over: BURNING TREE CR

S 1202 T 47 N R 6 E, St. Louis, MO

Built 2016 Load: 58.5 t ADT: 8,057

FOREST PARK DRIVE

Good

Over: SHAW PARK DR

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

Built 2005 Load: 59.4 t ADT: 20,527

WILD HORSE CR RD

Good

Over: BR OF WILD HORSE C

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

Built 2018 Load: 59.4 t ADT: 1,120

OAK SPRINGS TRL DR

Good

Over: BR OF FISHPOT CR

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

Built 1994 Load: 60.3 t ADT: 300

MCKNIGHT RD

Good

Over: BLACK CR

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

Built 2014 Load: 62.1 t ADT: 13,988

OLD EATHERTON RD

Good

Over: BONHOMME CR

S 15 T 45 N R 3 E, St. Louis, MO

Built 2019 Load: 62.1 t ADT: 585

RIVER CITY BLVD

Good

Over: GRAVOIS CR

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

Built 2009 Load: 63.0 t ADT: 10,746

OAK DR

Good

Over: TWO MILE CR

S 26 T 45 N R 8 E, St. Louis, MO

Built 2018 Load: 63.0 t ADT: 160

W FLORISSANT AVE

Good

Over: MALINE CR

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

Built 2004 Load: 63.9 t ADT: 28,373

N ROCK HILL RD

Good

Over: SHADY GROVE CR

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

Built 2017 Load: 63.9 t ADT: 5,574

FORBY RD

Good

Over: CLIFTY CR

S 26 T 44 N R 3 E, St. Louis, MO

Built 2009 Load: 64.8 t ADT: 460

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