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)

BRECKENRIDGE AVE

Good

Over: COLDWATER CR

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

Built 2000 Load: 32.4 t ADT: 1,766

DALE AVE

Good

Over: HAMPTON CR

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

Built 2003 Load: 32.4 t ADT: 6,000

WILD HORSE CR RD

Good

Over: WILD HORSE CR

S 459 T 45 N R 3 E, St. Louis, MO

Built 2003 Load: 32.4 t ADT: 1,110

FROST AVE

Good

Over: TRIB COLD WATER CR

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

Built 2008 Load: 32.4 t ADT: 1,710

BALD HILL RD

Good

Over: FLAT CR

S 2071 T 43 N R 3 E, St. Louis, MO

Built 2007 Load: 32.4 t ADT: 1,000

BROOKBEND DR

Good

Over: TWO MILE CR

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

Built 2009 Load: 32.4 t ADT: 2,000

TODD EVAN TRAIL

Good

Over: WILSON CR

S 8 T 45 N R 4 E, St. Louis, MO

Built 2009 Load: 32.4 t ADT: 184

WHITECLIFF PRK RD

Good

Over: GRAVOIS CR

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

Built 2011 Load: 32.4 t ADT: 10

LITZSINGER RD

Good

Over: BLACK CR

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

Built 2011 Load: 32.4 t ADT: 3,000

GEYER RD

Good

Over: TWO MILE CR

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

Built 2012 Load: 32.4 t ADT: 6,000

OLD WARSON RD

Good

Over: SEBAGO CR

S 1930 T 45 N R 6 E, St. Louis, MO

Built 2006 Load: 32.4 t ADT: 4,000

CHESTERFLD RDGE RD

Good

Over: SWINGLEY RIDGE RD

S 415 T 45 N R 4 E, St. Louis, MO

Built 1997 Load: 32.4 t ADT: 400

PARKWAY DR

Good

Over: BONHOMME CR

S 2 T 44 N R 3 E, St. Louis, MO

Built 2015 Load: 32.4 t ADT: 10

RIES RD

Good

Over: FISHPOT CR

S 2 T 44 N R 4 E, St. Louis, MO

Built 2018 Load: 32.4 t ADT: 8,914

PEAR TREE LN

Good

Over: E Z PARK

S 168 T 46 N R 6 E, St. Louis, MO

Built 2000 Load: 32.4 t ADT: 4,902

BRECKENRIDGE INDUS

Good

Over: DEER CRK

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

Built 2023 Load: 32.4 t ADT: 2,000

LONGVIEW DRIVE

Good

Over: TRIB OF MATTESE

S 34 T 43 N R 6 E, St. Louis, MO

Built 2023 Load: 32.4 t ADT: 1,150

MO 21 S

Good

Over: GRAVOIS CR

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

Built 1969 Load: 32.4 t ADT: 18,182

RUE ST DENIS

Good

Over: FOUNTAIN CR

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

Built 1998 Load: 33.3 t ADT: 3,983

ASHBY RD

Good

Over: COLDWATER CR

S 1024 T 46 N R 6 E, St. Louis, MO

Built 2011 Load: 33.3 t ADT: 1,800

WEBER HILL RD

Good

Over: TRIB B

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

Built 2012 Load: 33.3 t ADT: 3,240

FORSYTH BLVD

Good

Over: PEDESTRIAN WALKWAY

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

Built 2013 Load: 33.3 t ADT: 10,152

RUE ST DENIS

Good

Over: COLD WATER CR

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

Built 1998 Load: 34.2 t ADT: 3,983

LITZSINGER RD

Good

Over: DEER CR

S 19 T 45 N R 6 E, St. Louis, MO

Built 2007 Load: 34.2 t ADT: 1,920

CANTON AVE

Good

Over: RVR DES PERES

S 34 T 45 N R 6 E, St. Louis, MO

Built 2007 Load: 34.2 t ADT: 2,073

MO 100 E

Good

Over: DEER CR

S 29 T 45 N R 6 E, St. Louis, MO

Built 1993 Load: 34.2 t ADT: 15,221

BAUMGARTNER RD

Good

Over: MATTESE CR

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

Built 1980 Load: 35.1 t ADT: 12,285

ST EDWARD LN

Good

Over: ST ANTHONY CR

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

Built 2006 Load: 35.1 t ADT: 250

BAALBEK DR

Good

Over: TRIB B

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

Built 2009 Load: 35.1 t ADT: 100

IS 70 E

Good

Over: COLDWATER CR

S 2524 T 46 N R 6 E, St. Louis, MO

Built 2000 Load: 36.0 t ADT: 72,882

IS 70 W

Good

Over: COLDWATER CR

S 2524 T 46 N R 6 E, St. Louis, MO

Built 2000 Load: 36.0 t ADT: 81,653

MISSOURI BOTTOM RD

Good

Over: NS RR

S 6 T 47 N R 5 E, St. Louis, MO

Built 1960 Load: 36.0 t ADT: 6,697

HANNA RD

Good

Over: TRIB TO FISHPOT CR

S 7 T 44 N R 5 E, St. Louis, MO

Built 2010 Load: 36.0 t ADT: 5,720

MO 141 S

Good

Over: CREVE COUER CR

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

Built 2011 Load: 36.0 t ADT: 12,881

FIRETHORN DR

Good

Over: TRIB OF TWO MILE C

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

Built 2011 Load: 36.0 t ADT: 400

W WATSON RD

Good

Over: TRIB B

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

Built 2012 Load: 36.0 t ADT: 600

HIGHLAND AVE

Good

Over: SUGAR CR

S 3 T 44 N R 5 E, St. Louis, MO

Built 2012 Load: 36.0 t ADT: 800

N WOODS MILL RD

Good

Over: CREVE COEUR CR

S 7 T 45 N R 8 E, St. Louis, MO

Built 2012 Load: 36.0 t ADT: 5,041

NEW BALLWIN RD

Good

Over: KIEFER CR

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

Built 2016 Load: 36.0 t ADT: 1,164

LP 44 E

Good

Over: FOX CR

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

Built 2004 Load: 36.9 t ADT: 6,940

S CASTELLO ST

Good

Over: ST ANTHONY CR

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

Built 2003 Load: 36.9 t ADT: 1,000

MELROSE RD

Good

Over: CREEK

S 16 T 44 N R 3 E, St. Louis, MO

Built 2003 Load: 37.8 t ADT: 50

CHAMBERLAIN AVE

Good

Over: NE BR RVR DES PERE

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

Built 2014 Load: 37.8 t ADT: 100

SHACKELFORD RD

Good

Over: DANIEL BOONE CR

S 16 T 47 N R 6 E, St. Louis, MO

Built 2015 Load: 37.8 t ADT: 31,325

SCHOETTLER RD

Good

Over: CREVE COUER CR

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

Built 2017 Load: 37.8 t ADT: 7,282

LOVELLA AVE

Good

Over: CLAYTONIA CR

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

Built 2022 Load: 37.8 t ADT: 500

BAYLESS AVENUE

Good

Over: GRAVOIS CRK

S 13 T 44 N R 6 E, St. Louis, MO

Built 2022 Load: 37.8 t ADT: 13,770

BRENTWOOD BLVD

Good

Over: DEER CR

S 28 T 45 N R 6 E, St. Louis, MO

Built 1912 Load: 38.7 t ADT: 23,967

RUE ST. FRANCOIS

Good

Over: FOUNTAIN CR

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

Built 1998 Load: 38.7 t ADT: 500

VALLEY RD

Good

Over: SHOTWELL CR

S 20 T 45 N R 4 E, St. Louis, MO

Built 2005 Load: 38.7 t ADT: 3,292

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