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)

Sort:

BIRDIE HILLS RD

Over: TRIB OF DARDENNE C

S 739 T 46 N R 3 E, St. Charles, MO

Built 2005 Load: 17.1 t ADT: 14,000

RT D E

Over: CALLAWAY BR

S 33 T 46 N R 1 E, St. Charles, MO

Built 1968 Load: 18.0 t ADT: 6,588

RIVERSIDE RD

Over: BLANCHETTE CR

S 3280 T 47 N R 5 E, St. Charles, MO

Built 1977 Load: 18.0 t ADT: 3,000

DROSTE RD

Over: COLE CR

S 25 T 47 N R 4 E, St. Charles, MO

Built 1964 Load: 18.0 t ADT: 13,300

COUNTRY KNOLL DR

Over: DUCKETT CR

S 22 T 46 N R 4 E, St. Charles, MO

Built 1993 Load: 18.9 t ADT: 714

WOLFRUM RD

Over: TRIB DARDENNE CR

S 1785 T 46 N R 3 E, St. Charles, MO

Built 2009 Load: 18.9 t ADT: 5,000

RT B E

Over: DARDENNE CR

S 2 T 47 N R 4 E, St. Charles, MO

Built 1962 Load: 18.9 t ADT: 812

MO 94 E

Over: FEMME OSAGE CR

S 208 T 45 N R 2 E, St. Charles, MO

Built 1964 Load: 19.8 t ADT: 2,005

HUSTER RD

Over: TRIB MISSISSIPPI R

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

Built 1980 Load: 20.7 t ADT: 500

US 61 N

Over: BIG CR

S 28 T 48 N R 1 E, St. Charles, MO

Built 1961 Load: 21.6 t ADT: 26,023

RT T S

Over: DARDENNE CR

S 19 T 46 N R 1 E, St. Charles, MO

Built 1935 Load: 21.6 t ADT: 3,318

DELOIRE DR

Over: TRIB OF PERUQUE CR

S 33 T 47 N R 2 E, St. Charles, MO

Built 1970 Load: 22.5 t ADT: 4,200

LK ST LOUIS BLVD

Over: TRIB OF PERUQUE CR

S 35 T 47 N R 2 E, St. Charles, MO

Built 1970 Load: 22.5 t ADT: 5,200

MEXICO RD

Over: SPENCER CR

S 32 T 47 N R 4 E, St. Charles, MO

Built 1987 Load: 22.5 t ADT: 23,000

STUB RD

Over: TRB FEMME OSAGE CR

S 29 T 45 N R 2 E, St. Charles, MO

Built 2020 Load: 22.5 t ADT: 20

RT P E

Over: BR PERUQUE CR

S 11 T 47 N R 2 E, St. Charles, MO

Built 1956 Load: 22.5 t ADT: 2,274

OHMES RD

Over: TRIB OF DARDENNE C

S 2 T 46 N R 3 E, St. Charles, MO

Built 1998 Load: 23.4 t ADT: 3,000

POINT PRAIRIE ROAD

Over: TRIBUTARY OF MCCOY

S 16 T 47 N R 1 E, St. Charles, MO

Built 2016 Load: 23.4 t ADT: 3,999

RT T S

Over: CALLAWAY BR

S 31 T 46 N R 1 E, St. Charles, MO

Built 1935 Load: 23.4 t ADT: 3,318

PORTAGE RD

Over: FLOOD CHNL

S 35 T 48 N R 6 E, St. Charles, MO

Built 1994 Load: 24.3 t ADT: 192

RT Z S

Over: PERUQUE CR

S 25 T 47 N R 1 E, St. Charles, MO

Built 1969 Load: 24.3 t ADT: 17,060

TURTLE CR DR

Over: BELLEAU CR

S 31 T 47 N R 3 E, St. Charles, MO

Built 1995 Load: 24.3 t ADT: 500

DARST BOTTOM RD

Over: TRIB OF FEMME OSAG

S 44 T 45 N R 2 E, St. Charles, MO

Built 1991 Load: 25.2 t ADT: 35

WRENWYCK PL

Over: TRIB CROOKED CR

S 1787 T 46 N R 3 E, St. Charles, MO

Built 1997 Load: 25.2 t ADT: 250

IS 64 W

Over: PERUQUE CR

S 33 T 46 N R 2 E, St. Charles, MO

Built 1968 Load: 26.1 t ADT: 37,401

MEINERSHAGN RD

Over: LIT DARDENNE CR

S 9 T 46 N R 1 E, St. Charles, MO

Built 1978 Load: 26.1 t ADT: 209

RT P E

Over: PERUQUE CR

S 7 T 47 N R 8 E, St. Charles, MO

Built 1983 Load: 26.1 t ADT: 8,470

CENTRAL SCHOOL RD

Over: BALTIC CR

S 1784 T 46 N R 3 E, St. Charles, MO

Built 1999 Load: 27.0 t ADT: 5,000

MO 94 E

Over: ROESNER BR

S 7 T 44 N R 1 E, St. Charles, MO

Built 1934 Load: 27.0 t ADT: 1,695

RT F E

Over: CALLAWAY FK

S 108 T 45 N R 2 E, St. Charles, MO

Built 1983 Load: 27.9 t ADT: 1,713

ST PAUL RD

Over: CREEK

S 1 T 47 N R 2 E, St. Charles, MO

Built 1996 Load: 28.8 t ADT: 865

GRAYSTONE DR

Over: COLE CR

S 3280 T 46 N R 4 E, St. Charles, MO

Built 1988 Load: 29.7 t ADT: 12,200

ELM POINT IND DR

Over: TRIB OF MISSISSIPP

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

Built 1999 Load: 29.7 t ADT: 500

CENTRAL SCHOOL RD

Over: TRIB OF DARDENNE C

S 1784 T 46 N R 4 E, St. Charles, MO

Built 2002 Load: 29.7 t ADT: 6,000

MAIN ST

Over: DARDENNE CR

S 462 T 47 N R 3 E, St. Charles, MO

Built 1974 Load: 29.7 t ADT: 10,518

US 67 S

Over: MISSOURI RVR, BNSF RR

S 9 T 47 N R 7 E, St. Charles, MO

Built 1979 Load: 30.6 t ADT: 20,854

IS 70 E

Over: PERUQUE CR

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

Built 1951 Load: 30.6 t ADT: 50,817

RT Y E

Over: WHITE'S BR

S 27 T 48 N R 2 E, St. Charles, MO

Built 1960 Load: 31.5 t ADT: 567

BRYAN RD

Over: BR OF BELLEAU CR

S 36 T 47 N R 2 E, St. Charles, MO

Built 1998 Load: 32.4 t ADT: 3,000

CIVIC PARK DR

Over: BR OF PERUQUE CR

S 20 T 47 N R 3 E, St. Charles, MO

Built 1991 Load: 32.4 t ADT: 300

MEXICO RD

Over: BELLEAU CR

S 32 T 47 N R 3 E, St. Charles, MO

Built 1995 Load: 32.4 t ADT: 4,000

MEXICO RD

Over: BR OF BELLEAU CR

S 1669 T 46 N R 3 E, St. Charles, MO

Built 1995 Load: 32.4 t ADT: 500

POINT PRAIRIE RD

Over: SAMS CR

S 33 T 47 N R 1 E, St. Charles, MO

Built 1988 Load: 32.4 t ADT: 898

LITTLE HILLS EXPY

Over: BOSCHERT CR

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

Built 1993 Load: 32.4 t ADT: 3,700

DEFIANCE RD

Over: FEMME OSAGE CR

S 303 T 45 N R 2 E, St. Charles, MO

Built 1990 Load: 32.4 t ADT: 218

MEXICO RD

Over: DARDENNE CR

S 1738 T 47 N R 3 E, St. Charles, MO

Built 1988 Load: 32.4 t ADT: 22,000

US 61 S

Over: MCCOY CR

S 145 T 47 N R 1 E, St. Charles, MO

Built 1973 Load: 32.4 t ADT: 25,335

WENTZVILLE PKWY

Over: TRIB OF MCCOY CR

S 23 T 47 N R 1 E, St. Charles, MO

Built 1992 Load: 32.4 t ADT: 23,710

MUEGGE RD

Over: TRIB OF COLE CR

S 3280 T 46 N R 4 E, St. Charles, MO

Built 1995 Load: 32.4 t ADT: 15,200

MUEGGE RD

Over: TRIB OF COLE CR

S 3280 T 46 N R 4 E, St. Charles, MO

Built 1998 Load: 32.4 t ADT: 14,000

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026