St. Clair County, MO

139 public highway bridges

St. Clair County Bridge Snapshot

St. Clair County, Missouri contains 139 public highway bridges in the FHWA National Bridge Inventory. Roughly 23% are rated “Good,” 55.4% “Fair,” 19.4% “Poor,” and 19.4% 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.

139
Total Bridges
23%
Good
19.4%
Poor
19.4%
Structurally Deficient

Condition Distribution

Good
23% (32)
Fair
55.4% (77)
Poor
19.4% (27)
SD
19.4% (27)

All Bridges (139)

MO 82 E

Good

Over: COON CR

S 24 T 37 N R 27 W, St. Clair, MO

Built 2011 Load: 46.8 t ADT: 1,155

RP US54 TO MO13N N

Good

Over: COON CR

S 12 T 36 N R 25 W, St. Clair, MO

Built 2006 Load: 47.7 t ADT: 633

MO 13 S

Good

Over: COON CR

S 1 T 36 N R 25 W, St. Clair, MO

Built 2006 Load: 47.7 t ADT: 6,685

MO 13 N

Good

Over: COON CR

S 1 T 36 N R 25 W, St. Clair, MO

Built 2006 Load: 47.7 t ADT: 6,375

MO 13 S

Good

Over: PANTHER CR

S 31 T 36 N R 24 W, St. Clair, MO

Built 2004 Load: 48.6 t ADT: 6,036

COUNTY RD NW 650

Good

Over: MONEGAW CR

S 28 T 39 N R 28 W, St. Clair, MO

Built 2000 Load: 51.3 t ADT: 15

COUNTY RD SE 550

Good

Over: TRIB OF SAC RIVER

S 25 T 37 N R 26 W, St. Clair, MO

Built 2000 Load: 54.0 t ADT: 30

NE 1270

Good

Over: TRIB OF COOPER CR

S 1 T 39 N R 26 W, St. Clair, MO

Built 2018 Load: 54.0 t ADT: 250

RT BB E

Good

Over: BR

S 30 T 38 N R 27 W, St. Clair, MO

Built 1980 Load: 57.6 t ADT: 80

RT A E

Good

Over: RICKY CR

S 12 T 39 N R 28 W, St. Clair, MO

Built 2008 Load: 59.4 t ADT: 668

MO 13 S

Good

Over: COON CR

S 12 T 36 N R 25 W, St. Clair, MO

Built 2006 Load: 64.8 t ADT: 13,060

COUNTY RD NW 1000

Good

Over: TRIB OF MONEGAW CR

S 4 T 39 N R 28 W, St. Clair, MO

Built 2007 Load: 76.5 t ADT: 40

COUNTY RD NW 526

Poor

Over: LITTLE MONEGAW CR

S 36 T 39 N R 27 W, St. Clair, MO

Built 1930 Load: 4.5 t ADT: 15

COUNTY RD NW 1270

Poor

Over: BRANCH

S 6 T 39 N R 27 W, St. Clair, MO

Built 1930 Load: 5.4 t ADT: 35

COUNTY RD NE 100

Poor

Over: BRUSH CR

S 22 T 38 N R 25 W, St. Clair, MO

Built 1930 Load: 9.0 t ADT: 20

COUNTY RD SE 1401

Poor

Over: WEAUBLEAU CR

S 26 T 37 N R 24 W, St. Clair, MO

Built 1946 Load: 9.0 t ADT: 15

COUNTY RD NW 1101

Poor

Over: DITTY CR

S 26 T 39 N R 28 W, St. Clair, MO

Built 1930 Load: 9.0 t ADT: 25

COUNTY RD NW 1001

Poor

Over: RICKEY CR

S 13 T 39 N R 28 W, St. Clair, MO

Built 1920 Load: 9.9 t ADT: 30

COUNTY RD SW 430

Poor

Over: CLEAR CR

S 21 T 37 N R 28 W, St. Clair, MO

Built 1910 Load: 16.2 t ADT: 20

COUNTY RD NW 600

Poor

Over: REID CR

S 28 T 39 N R 27 W, St. Clair, MO

Built 1930 Load: 17.1 t ADT: 20

COUNTY RD NE 800

Poor

Over: MUDDY CR

S 15 T 39 N R 25 W, St. Clair, MO

Built 2002 Load: 21.6 t ADT: 15

MO 13 N

Poor

Over: BRUSH CR

S 34 T 38 N R 25 W, St. Clair, MO

Built 1962 Load: 28.8 t ADT: 5,862

MO 82 E

Poor

Over: LIT CLEAR CR

S 1 T 36 N R 26 W, St. Clair, MO

Built 1991 Load: 35.1 t ADT: 953

COUNTY RD NE 1270

Structurally Deficient

Over: TRIB TO COOPER CR

S 6 T 39 N R 25 W, St. Clair, MO

Built 1930 ADT: 25

COUNTY RD SW 76

Structurally Deficient

Over: BAKER BR

S 35 T 38 N R 28 W, St. Clair, MO

Built 1930 ADT: 20

COUNTY RD NE 201

Structurally Deficient

Over: GALLINIPPER CR

S 35 T 39 N R 26 W, St. Clair, MO

Built 1900 ADT: 25

COUNTY RD NW 900

Structurally Deficient

Over: TRIB OF MONEGAW CR

S 8 T 39 N R 28 W, St. Clair, MO

Built 1965 Load: 1.8 t ADT: 20

COUNTY RD NW 1301

Structurally Deficient

Over: TRIB OF MONEGAW CR

S 28 T 39 N R 28 W, St. Clair, MO

Built 1930 Load: 2.7 t ADT: 15

COUNTY RD SE 750

Structurally Deficient

Over: W COON CR

S 1 T 36 N R 25 W, St. Clair, MO

Built 1940 Load: 2.7 t ADT: 20

COUNTY RD NE 501

Structurally Deficient

Over: BIG MUDDY CR

S 16 T 39 N R 25 W, St. Clair, MO

Built 1950 Load: 6.3 t ADT: 40

COUNTY RD NE 230

Structurally Deficient

Over: BEAR CR

S 16 T 38 N R 24 W, St. Clair, MO

Built 1960 Load: 6.3 t ADT: 25

COUNTY RD SE 550

Structurally Deficient

Over: TRIB OF WEAUBLEAU

S 23 T 37 N R 24 W, St. Clair, MO

Built 1920 Load: 7.2 t ADT: 35

RT H S

Structurally Deficient

Over: MONEGAW CR

S 27 T 39 N R 28 W, St. Clair, MO

Built 1934 Load: 9.0 t ADT: 317

RT J S

Structurally Deficient

Over: BRUSH CR

S 18 T 36 N R 25 W, St. Clair, MO

Built 1952 Load: 10.8 t ADT: 316

COUNTY RD SE 650

Structurally Deficient

Over: S FK WEAUBLEAU CR

S 32 T 37 N R 24 W, St. Clair, MO

Built 1960 Load: 12.6 t ADT: 30

MO 82 E

Structurally Deficient

Over: TRUMAN RESERVOIR

S 1 T 37 N R 26 W, St. Clair, MO

Built 1976 Load: 19.8 t ADT: 1,071

RT B E

Structurally Deficient

Over: TRUMAN RESERVOIR

S 18 T 38 N R 25 W, St. Clair, MO

Built 1978 Load: 20.7 t ADT: 448

MO 82 E

Structurally Deficient

Over: BEAR CR

S 16 T 38 N R 24 W, St. Clair, MO

Built 1978 Load: 22.5 t ADT: 789

MO 13 N

Structurally Deficient

Over: OTTER CR

S 2 T 39 N R 26 W, St. Clair, MO

Built 1963 Load: 24.3 t ADT: 9,437

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