St. Charles County, MO

418 public highway bridges

St. Charles County Bridge Snapshot

St. Charles County, Missouri contains 418 public highway bridges in the FHWA National Bridge Inventory. Roughly 21.8% are rated “Good,” 51.7% “Fair,” 3.1% “Poor,” and 3.1% 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.

418
Total Bridges
21.8%
Good
3.1%
Poor
3.1%
Structurally Deficient

Condition Distribution

Good
21.8% (91)
Fair
51.7% (216)
Poor
3.1% (13)
SD
3.1% (13)

All Bridges (418)

HOLT RD

Fair

Over: DARDENNE CR

S 21 T 46 N R 1 E, St. Charles, MO

Built 1989 Load: 45.0 t ADT: 106

SCHLUERSBURG RD

Fair

Over: TRIB OF FEMME OSAG

S 26 T 45 N R 1 E, St. Charles, MO

Built 1989 Load: 45.0 t ADT: 284

FEMME OSAGE CR RD

Fair

Over: TRIB FEMME OSAGE C

S 20 T 45 N R 1 E, St. Charles, MO

Built 2009 Load: 45.0 t ADT: 277

W SUNNY HILL BLVD

Fair

Over: UNNAMED TRIBUTARY

S 739 T 47 N R 3 E, St. Charles, MO

Built 2012 Load: 45.0 t ADT: 500

SB GRANGER BLVD

Fair

Over: CANAL

S 1000 T 47 N R 5 E, St. Charles, MO

Built 2009 Load: 45.0 t ADT: 400

GUTHRIE RD

Fair

Over: NSRR

S 26 T 47 N R 2 E, St. Charles, MO

Built 2009 Load: 45.9 t ADT: 24,500

OR 64 E

Fair

Over: DARDENNE CR

S 1641 T 46 N R 2 E, St. Charles, MO

Built 1968 Load: 46.8 t ADT: 7,071

MO 364 W

Fair

Over: DARDENNE CR, BIKE PATH

S 15 T 46 N R 3 E, St. Charles, MO

Built 2014 Load: 46.8 t ADT: 24,602

MID RIVERS MALL DR

Fair

Over: DARDENNE CR

S 12 T 46 N R 3 E, St. Charles, MO

Built 1990 Load: 47.7 t ADT: 20,000

N 5TH ST

Fair

Over: NS RR

S 164 T 47 N R 5 E, St. Charles, MO

Built 2005 Load: 47.7 t ADT: 10,500

SKINNER INDSTRL DR

Fair

Over: TRIB MISSISSIPPI R

S 13 T 47 N R 4 E, St. Charles, MO

Built 2020 Load: 48.6 t ADT: 1,000

MO 370 E

Fair

Over: NS RR

S 29 T 47 N R 4 E, St. Charles, MO

Built 1994 Load: 48.6 t ADT: 15,048

IS 64 E

Fair

Over: DARDENNE CR

S 1641 T 46 N R 2 E, St. Charles, MO

Built 2005 Load: 49.5 t ADT: 29,761

FEMME OSAGE RDG RD

Fair

Over: FEMME OSAGE CR

S 15 T 45 N R 1 E, St. Charles, MO

Built 2014 Load: 49.5 t ADT: 21

SIMEON BUNKER ST.

Fair

Over: CANAL

S 1000 T 47 N R 5 E, St. Charles, MO

Built 2009 Load: 50.4 t ADT: 400

SPORTS PARK DR

Fair

Over: DARDENNE CR

S 16 T 46 N R 3 E, St. Charles, MO

Built 2003 Load: 50.4 t ADT: 2,000

GROTHE RD S

Fair

Over: BR OF MCCOY CR

S 735 T 47 N R 1 E, St. Charles, MO

Built 1987 Load: 51.3 t ADT: 702

RT DD S

Fair

Over: SCHIERBAUM CR

S 15 T 46 N R 2 E, St. Charles, MO

Built 1943 Load: 51.3 t ADT: 11,054

IS 70 W

Fair

Over: SPENCER CR

S 1799 T 47 N R 4 E, St. Charles, MO

Built 1962 Load: 51.3 t ADT: 65,971

US 61 S

Fair

Over: SPRING BR

S 13 T 47 N R 1 E, St. Charles, MO

Built 1973 Load: 52.2 t ADT: 73,851

RT D E

Fair

Over: TRIB OF CUNNINGHAM

S 30 T 46 N R 2 E, St. Charles, MO

Built 2004 Load: 52.2 t ADT: 5,457

UPPER BOTTOM RD

Fair

Over: TRIB OF DUCKETT CR

S 23 T 46 N R 4 E, St. Charles, MO

Built 2002 Load: 52.2 t ADT: 6,178

RT A E

Fair

Over: BR OF PERUQUE CR

S 888 T 47 N R 2 E, St. Charles, MO

Built 1982 Load: 52.2 t ADT: 12,818

OR 70 E

Fair

Over: SANDFORT CR

S 34 T 47 N R 4 E, St. Charles, MO

Built 1984 Load: 52.2 t ADT: 8,491

RT K S

Fair

Over: BELLEAU CR

S 33 T 47 N R 3 E, St. Charles, MO

Built 1987 Load: 52.2 t ADT: 59,104

MO 370 E

Fair

Over: SANDFORT CR

S 22 T 47 N R 4 E, St. Charles, MO

Built 1994 Load: 52.2 t ADT: 43,510

IS 70 E

Fair

Over: SPENCER CR

S 27 T 47 N R 4 E, St. Charles, MO

Built 1953 Load: 52.2 t ADT: 62,498

MO 94 E

Fair

Over: FISCHER CR

S 59 T 44 N R 2 E, St. Charles, MO

Built 1961 Load: 52.2 t ADT: 1,579

IS 70 E

Fair

Over: BELLEAU CR

S 27 T 47 N R 3 E, St. Charles, MO

Built 1955 Load: 52.2 t ADT: 104,307

METTE RD

Fair

Over: MCCOY CR

S 935 T 47 N R 1 E, St. Charles, MO

Built 1993 Load: 53.1 t ADT: 1,855

BECKER JOERLING RD

Fair

Over: TRIB OF FEMME OSAG

S 16 T 45 N R 1 E, St. Charles, MO

Built 1991 Load: 53.1 t ADT: 69

RT P E

Fair

Over: BR OF MCCOY CR

S 413 T 47 N R 1 E, St. Charles, MO

Built 1987 Load: 53.1 t ADT: 5,878

MO 94 E

Fair

Over: LIT FEMME OSAGE CR

S 476 T 45 N R 2 E, St. Charles, MO

Built 1999 Load: 54.0 t ADT: 3,289

WILMES RD

Fair

Over: NO CR

S 17 T 47 N R 2 E, St. Charles, MO

Built 1900 Load: 54.0 t ADT: 23

MOZARKITE DR

Fair

Over: TRIB OF SPENCER CR

S 17 T 46 N R 4 E, St. Charles, MO

Built 1984 Load: 54.0 t ADT: 800

SPENCER RD

Fair

Over: SPENCER CR

S 1731 T 47 N R 4 E, St. Charles, MO

Built 1996 Load: 54.0 t ADT: 5,000

RT D E

Fair

Over: CUNNINGHAM BR CR

S 25 T 46 N R 1 E, St. Charles, MO

Built 2004 Load: 54.9 t ADT: 5,457

MO 370 W

Fair

Over: COLE CR

S 13 T 47 N R 4 E, St. Charles, MO

Built 1994 Load: 56.7 t ADT: 21,841

IS 64 E

Fair

Over: SCHOTE CR

S 1633 T 46 N R 3 E, St. Charles, MO

Built 2005 Load: 57.6 t ADT: 59,510

OLD RT N

Fair

Over: TRIB DARDENNE CR

S 15 T 46 N R 3 E, St. Charles, MO

Built 2016 Load: 58.5 t ADT: 10,000

MO 370 E

Fair

Over: COLE CR

S 13 T 47 N R 4 E, St. Charles, MO

Built 1994 Load: 58.5 t ADT: 21,669

OR 70 E

Fair

Over: BELLEAU CR

S 28 T 47 N R 3 W, St. Charles, MO

Built 1999 Load: 59.4 t ADT: 2,904

ST PETERS HOWELL R

Fair

Over: TRIB TO DARDENNE C

S 285 T 46 N R 4 E, St. Charles, MO

Built 2006 Load: 61.2 t ADT: 13,573

RT DD S

Fair

Over: KRAUT-RUN CR

S 28 T 46 N R 2 E, St. Charles, MO

Built 1943 Load: 61.2 t ADT: 3,383

HOFF RD

Fair

Over: PERUQUE CR

S 13 T 47 N R 2 E, St. Charles, MO

Built 1994 Load: 62.1 t ADT: 1,996

DEFIANCE RD

Fair

Over: TRIB OF FEMME OSAG

S 19 T 45 N R 2 E, St. Charles, MO

Built 1900 Load: 62.1 t ADT: 187

OR 70 E

Fair

Over: COLE CR

S 3280 T 47 N R 4 E, St. Charles, MO

Built 1963 Load: 63.9 t ADT: 11,947

OR 94 E

Fair

Over: BALTIC CR

S 292 T 46 N R 3 E, St. Charles, MO

Built 2010 Load: 64.8 t ADT: 11,009

RT F E

Fair

Over: BR OF CALLAWAY FK

S 35 T 46 N R 1 E, St. Charles, MO

Built 1990 Load: 64.8 t ADT: 1,713

MO 370 E

Fair

Over: BOSCHERT CR

S 188 T 47 N R 5 E, St. Charles, MO

Built 1992 Load: 67.5 t ADT: 38,154

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