St. Clair County, IL

502 public highway bridges

St. Clair County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, St. Clair County, Illinois contains 502 public highway bridges. Roughly 34.7% are rated “Good,” 25.7% “Fair,” and 8% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

502
Total Bridges
34.7%
Good
25.7%
Fair
8%
Poor Condition

Condition Distribution

Good
34.7% (174)
Fair
25.7% (129)
Poor
8% (40)

All Bridges (502)

METRO LINK

Unknown

Over: CARLYLE AVE

IN BELLEVILLE, St. Clair, IL

Built 1999 ADT: 4,900

METRO LINK

Unknown

Over: MCCLINTOCK AVE

.04 E OF MCKINLEY, St. Clair, IL

Built 1999 ADT: 7,200

METRO LINK

Unknown

Over: GREENMOUNT RD

.68MI SOUTH OF IL161, St. Clair, IL

Built 1999 ADT: 15,600

METRO LINK

Unknown

Over: "B" ST.

.04 E OF N IOWA, St. Clair, IL

Built 1999 ADT: 2,150

METRO LINK

Unknown

Over: FULLERTON ROAD

.50 MI W OF IL 159, St. Clair, IL

Built 1999 ADT: 6,850

TRRA

Unknown

Over: TRENDLEY AV/FAU 9188

05M W MAINON TRENDLE, St. Clair, IL

Built 1890 ADT: 250

CSX RAILROAD

Unknown

Over: MS 6010/MILL STREET

SW EDGE OFSUMMERFL'D, St. Clair, IL

Built 1900 ADT: 50

ILL CENTRAL RR

Unknown

Over: MS 7420A/10TH STREET

BELLEVILLE, St. Clair, IL

Built 1901 ADT: 475

NS RR

Unknown

Over: CATAWBA ST

.10M N OF "E" ST, St. Clair, IL

Built 1899 ADT: 25

OLD BALDWIN RD

Fair

Over: LIVELY CREEK

0.30 MI S IL 13, St. Clair, IL

Built 1901 Load: 17.5 t ADT: 675

COLLINSVILLE RD

Fair

Over: SCHOENBERGER CK

0.5 M E JCT ILL 203, St. Clair, IL

Built 1947 Load: 19.4 t ADT: 3,150

40TH ST - E ST LOU

Fair

Over: SCHOENBER GER CREEK

0.03 N OF PARK DR, St. Clair, IL

Built 1935 Load: 19.4 t ADT: 10

SCHALLER RD/ CH 67

Fair

Over: CREEK

1.0MI SW LENZBURG, St. Clair, IL

Built 1943 Load: 19.8 t ADT: 175

BUNKUM RD/ FAU 916

Fair

Over: DITCH

0.25MI W ILL 157, St. Clair, IL

Built 1960 Load: 20.4 t ADT: 4,050

CH 50

Fair

Over: RAYHILL SLOUGH

1.50MI S ILL 177, St. Clair, IL

Built 1954 Load: 21.1 t ADT: 475

IL 3 NB Ramp "F" P

Fair

Over: Abandoned Southern RR

ABUT F-1 TO PIER P-1, St. Clair, IL

Built 1971 Load: 22.4 t ADT: 23,900

DOUGLAS ST/ FAU 92

Fair

Over: RICHLAND CREEK

BELLEVILLE, St. Clair, IL

Built 1948 Load: 22.7 t ADT: 3,600

Ramp to IL 3 SB "E

Fair

Over: Abandoned Southern RR

ABUT E-9 TO P-O17, St. Clair, IL

Built 1971 Load: 23.0 t ADT: 23,900

TOWN HALL RD/ TR 9

Fair

Over: WAELTI CR

3.5 MI W 59 ST, St. Clair, IL

Built 1971 Load: 23.0 t ADT: 375

I-55/64/70 EB CD "

Fair

Over: UPRR

pier H-1 to abut H-5, St. Clair, IL

Built 1969 Load: 23.7 t ADT: 19,300

TOWN HALL RD/ CH 2

Fair

Over: REINHARDT SLOUGH

1.2MI E ILL RTE 4, St. Clair, IL

Built 1970 Load: 24.3 t ADT: 350

JEFFERSON RD/ CH 2

Fair

Over: JACKSON SLOUGH

1.0 MI E ILL 4, St. Clair, IL

Built 1978 Load: 24.3 t ADT: 200

TR 240

Fair

Over: HOG CREEK

2 MI S ILL 177, St. Clair, IL

Built 1942 Load: 24.3 t ADT: 450

LUNCH RD/ TR 122

Fair

Over: DOUGLAS CREEK

0.2 MI S. SCHMIDT RD, St. Clair, IL

Built 1923 Load: 24.3 t ADT: 225

PERRIN RD/ TR 264

Fair

Over: LITTLE SILVER CR

1 MI E IL 4, St. Clair, IL

Built 1957 Load: 24.3 t ADT: 50

"C" STREET

Fair

Over: RICHLAND CREEK

0.25M W ILL 159, St. Clair, IL

Built 1948 Load: 24.3 t ADT: 850

FAU 9269

Fair

Over: RICHLAND CREEK

AT 6TH ST, St. Clair, IL

Built 1950 Load: 24.3 t ADT: 3,550

SOUTH THIRD STREET

Fair

Over: RICHLAND CREEK

0.10 N CLEVELAND, St. Clair, IL

Built 1921 Load: 24.3 t ADT: 550

ILL 161

Fair

Over: OVERFLOW SILVER CR

1.8 M E ILL 158, St. Clair, IL

Built 1932 Load: 24.6 t ADT: 4,950

ILL 15

Fair

Over: DRUM HILL BRANCH

1.5 M W FAYETTEVILLE, St. Clair, IL

Built 1928 Load: 25.9 t ADT: 2,200

32ND ST - E.ST LOU

Fair

Over: SCHOENBERGER CREEK

0.06 N OF PARK DR, St. Clair, IL

Built 1935 Load: 25.9 t ADT: 10

36TH ST E ST LOUIS

Fair

Over: SCHOENBERGER CREEK

0.01, St. Clair, IL

Built 1935 Load: 25.9 t ADT: 10

ILL 177 / IL 158

Fair

Over: CREEK

1.5 mi E of IL 159, St. Clair, IL

Built 1959 Load: 26.2 t ADT: 7,300

IL 15 / Missouri A

Fair

Over: A&SRR

0.50 mi NW of IL 163, St. Clair, IL

Built 1980 Load: 26.6 t ADT: 13,800

CH 68 LENZBURG EAS

Fair

Over: BRANCH OF MUD CREEK

0.1MI WEST ILL RTE 4, St. Clair, IL

Built 1972 Load: 26.6 t ADT: 250

26th

Fair

Over: NSRR

0.2mi SW of IL 15, St. Clair, IL

Built 1936 Load: 27.5 t ADT: 6,150

ILL 159

Fair

Over: BR RICHLAND CREEK

at IL 13/158/177 INT, St. Clair, IL

Built 1955 Load: 28.2 t ADT: 14,200

UNION HILLRD/FAU91

Fair

Over: TRIB SCHOENBERGER CR

2.25 MI N ILL 161, St. Clair, IL

Built 1981 Load: 28.2 t ADT: 8,650

SUNNYSIDE SCH TR 2

Fair

Over: EAST BRANCH

3 MI N US 50, St. Clair, IL

Built 1941 Load: 28.2 t ADT: 50

WB CD TO IL3 SB "0

Fair

Over: GROUND

PSC ABUT 0-11->P-017, St. Clair, IL

Built 1971 Load: 28.8 t ADT: 23,900

IL 13 New Athens

Fair

Over: KASKASKIA RIVER

W OF NEW ATHENS, St. Clair, IL

Built 1972 Load: 29.8 t ADT: 6,900

WB CD TO IL3SB "O1

Fair

Over: UPRR, Access Roads, UPRR

PIER G1 TO ABUT O-10, St. Clair, IL

Built 1971 Load: 29.8 t ADT: 5,300

PSB I-55,64;US 40

Fair

Over: MISSISSIPPI RIVER

POPLAR ST BR - MoDOT, St. Clair, IL

Built 1963 Load: 30.5 t ADT: 117,700

KORTE SEWALD TR 26

Fair

Over: BR LITTLE SILVER CR

0.5 MI N FAUST RD, St. Clair, IL

Built 1960 Load: 30.5 t ADT: 50

ILL 177

Fair

Over: RAYHILLS SLOUGH

3.1 M E JCT ILL 4, St. Clair, IL

Built 1920 Load: 31.4 t ADT: 2,000

FAI 64 EB

Fair

Over: HARDING DITCH

1.04 MI E OF ILL 111, St. Clair, IL

Built 1968 Load: 31.4 t ADT: 40,050

ILL 161

Fair

Over: SILVER CREEK

2.2 M E JCT 158, St. Clair, IL

Built 1932 Load: 31.8 t ADT: 4,950

IL 13

Fair

Over: ICRR

1.5 mi SE of New Athens, St. Clair, IL

Built 1971 Load: 31.8 t ADT: 4,000

IL 159

Fair

Over: CSXRR

0.25mi N of I-64, St. Clair, IL

Built 1973 Load: 31.8 t ADT: 20,500

FAU 9218

Fair

Over: PRAIRIE DUPONT CK

.10 MI S ILL 157, St. Clair, IL

Built 1992 Load: 31.8 t ADT: 2,300

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.