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)

SAUGET BUSINESS BL

Good

Over: GOOSE LAKE DITCH

.7 MI NW I 255, St. Clair, IL

Built 2011 Load: 52.5 t ADT: 6,650

Simmons Rd FAU 917

Good

Over: Ogle Ck

0.4 Mi N of Kyle Rd, St. Clair, IL

Built 2023 Load: 53.5 t ADT: 1,400

IL 157

Good

Over: UPRR

0.7mi E of IL3 in Cahokia, St. Clair, IL

Built 2009 Load: 54.4 t ADT: 10,550

SB RELOCATED IL 3

Good

Over: LAND BRIDGE

UNDER MLK APPR BRDGE, St. Clair, IL

Built 2015 Load: 64.2 t ADT: 1,800

NB RELOCATED IL 3

Good

Over: LAND BRIDGE

UNDER MLK APPR BRDGE, St. Clair, IL

Built 2015 Load: 65.8 t ADT: 1,800

WEST BOULEVARD

Good

Over: EAST TRIB TO LOOP CR

200' NW OF IL 161, St. Clair, IL

Built 1966 Load: 67.4 t ADT: 9,650

IL 4 & 15

Good

Over: KASKASKIA OVERFLOW

0.6 M E JCT IL 4, St. Clair, IL

Built 2009 Load: 75.8 t ADT: 3,600

JEFFERSON RD/ CH 2

Good

Over: HAZEL CREEK

2.00MI E ILL 13, St. Clair, IL

Built 1972 Load: 89.1 t ADT: 275

FAI 64

Good

Over: RAYHILL SLOUGH

0.74 W CLINTON CO, St. Clair, IL

Built 1971 Load: 90.7 t ADT: 31,000

ILL 15 WB TO ILL 1

Good

Over: BR OF RICHLAND CR

E OF ILL 159, St. Clair, IL

Built 1967 Load: 96.2 t ADT: 1,100

FAI 255

Good

Over: GOOSE LAKE DITCH

0.5 M S MOUSETTE LN, St. Clair, IL

Built 1982 Load: 97.2 t ADT: 36,700

ILL 15 EB TO ILL 1

Good

Over: BR OF RICHLAND CR

W OF ILL 159, St. Clair, IL

Built 1967 Load: 97.2 t ADT: 6,000

WERNER RD/ FAU 925

Poor

Over: SOUTHERN RR

0.3 MI E 74 ST, St. Clair, IL

Built 1960 ADT: 525

IMBS STATION RD

Poor

Over: PRAIRIE DUPONT CK

2.0 MI W IL 163, St. Clair, IL

Built 1997 Load: 3.6 t ADT: 900

WINTER RD CH 49

Poor

Over: DOZA CREEK SOUTH

3.5 MI S IL 13, St. Clair, IL

Built 1901 Load: 8.7 t ADT: 175

74TH ST/ FAU 9253

Poor

Over: SO RR 5 W BELLEVILLE

0.5 N IL 13, St. Clair, IL

Built 1955 Load: 16.5 t ADT: 5,450

ILL 157

Poor

Over: GOOSE LAKE CANAL

0.8 M E FAI 255, St. Clair, IL

Built 1932 Load: 19.4 t ADT: 6,000

I-255

Poor

Over: NSRR

0.5 mi S of IL 15, St. Clair, IL

Built 1980 Load: 20.1 t ADT: 41,500

BLACK QUARTER TR 1

Poor

Over: SILVER CR

1.0 MI N ILL 13, St. Clair, IL

Built 1961 Load: 20.7 t ADT: 50

FAU 9168

Poor

Over: RICHLAND CREEK

0.3 M N OF SHILOH RD, St. Clair, IL

Built 1966 Load: 21.4 t ADT: 8,950

TR-19 Midgely Neis

Poor

Over: Little Silver Creek

0.1 MI E ILL 4, St. Clair, IL

Built 1957 Load: 22.0 t ADT: 250

PRESS RD/ TR 197

Poor

Over: RICHLAND CREEK

1.5 MI E ILL. 159, St. Clair, IL

Built 1922 Load: 23.3 t ADT: 375

REIDER TR 222

Poor

Over: ENGEL CREEK

0.75 MI N US 50, St. Clair, IL

Built 1981 Load: 24.9 t ADT: 400

ILL 157

Poor

Over: LITTLE CANTEEN CREEK

IN CASEYVILLE, St. Clair, IL

Built 1929 Load: 27.5 t ADT: 10,900

PLUM HILL TR 180

Poor

Over: LOOP CREEK

0.3 MI S ILL 177, St. Clair, IL

Built 1980 Load: 27.5 t ADT: 350

FIVE FORKSE.RD/CH

Poor

Over: SILVER CR

4 MI SSE FREEBURG, St. Clair, IL

Built 1987 Load: 27.9 t ADT: 350

EMERALD MND RD/CH

Poor

Over: LITTLE SILVER CREEK

0.5MI E ILL RTE 4, St. Clair, IL

Built 1960 Load: 28.2 t ADT: 125

I-55/64; US 40 PSC

Poor

Over: TRRA

P6(PSB) to Pier BC1, St. Clair, IL

Built 1966 Load: 29.5 t ADT: 117,700

HAURY ROAD

Poor

Over: OGLES CREEK

0.5MI W WEIL RD, St. Clair, IL

Built 1995 Load: 29.5 t ADT: 200

CH 68

Poor

Over: MUD CREEK

3.0MI E ILL RTE 13, St. Clair, IL

Built 1962 Load: 30.5 t ADT: 250

N 89TH ST

Poor

Over: CREEK

300 FT. S. BUNKUM RD, St. Clair, IL

Built 1965 Load: 30.8 t ADT: 75

WATERLOO RD/ FAS 8

Poor

Over: GERHARDT CREEK

0.01MI N STC-MON LN, St. Clair, IL

Built 1961 Load: 31.1 t ADT: 1,850

MUD CREEK TR 308

Poor

Over: MUD CREEK

1.5 MI N ILL 13, St. Clair, IL

Built 1969 Load: 31.1 t ADT: 750

OTTEN RD/ TR 107

Poor

Over: HICKMAN CREEK

0.2 MI E WAGNER RD, St. Clair, IL

Built 1978 Load: 31.4 t ADT: 250

203SB RMP TO 55/70

Poor

Over: DRNG TO CAHOKIA CNL

S of Gateway Racetrk, St. Clair, IL

Built 1960 Load: 32.1 t ADT: 7,600

ILL 15 & 4

Poor

Over: KASKASKIA RIVER

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

Built 1946 Load: 32.1 t ADT: 3,600

FREEBURG TWP.TR 20

Poor

Over: DRUM HILL BR

1.0 MI W ILL. 4, St. Clair, IL

Built 1966 Load: 32.1 t ADT: 75

FOREST BLVD(FAU915

Poor

Over: SCHOENBERGER CR.

FOREST BLVD WASH PK, St. Clair, IL

Built 1949 Load: 32.4 t ADT: 775

I-55/70 & US 40 EB

Poor

Over: DRAINAGE CANAL

1/2 Mi E of E St Lou, St. Clair, IL

Built 1960 Load: 33.4 t ADT: 33,650

ILL 177

Poor

Over: Silver Cr Overflow E

2.3mi W IL 4, St. Clair, IL

Built 1961 Load: 33.4 t ADT: 7,000

IL 111

Poor

Over: A&SRR

0.14mi S of I-64, St. Clair, IL

Built 1973 Load: 33.4 t ADT: 13,900

ILL 177

Poor

Over: Silver Cr Overflow W

2.3mi W IL 4, St. Clair, IL

Built 1961 Load: 33.7 t ADT: 7,000

I-55/70;/64

Poor

Over: CSXRR,NSRR,TRRARR

E. St. Louis, St. Clair, IL

Built 1959 Load: 35.6 t ADT: 67,300

ILL 203 NB

Poor

Over: CAHOKIA CANAL

0.9mi N of 55/70, St. Clair, IL

Built 1960 Load: 35.6 t ADT: 13,500

ILL 203 SB

Poor

Over: CAHOKIA CANAL

0.9mi N of 55/70, St. Clair, IL

Built 1960 Load: 35.6 t ADT: 13,500

CONCORDIA CH RD/CH

Poor

Over: PRAIRIE DU PONT CR

0.50MI E ILL 163, St. Clair, IL

Built 1958 Load: 36.3 t ADT: 800

ILL 159

Poor

Over: DOUGLAS CREEK

0.8 M N SMITHTON, St. Clair, IL

Built 1954 Load: 37.9 t ADT: 9,400

I-64 EB

Poor

Over: NSRR

0.3 mi E of IL 161, St. Clair, IL

Built 1971 Load: 37.9 t ADT: 15,500

I-64 WB

Poor

Over: NSRR

0.3 mi E of IL 161, St. Clair, IL

Built 1971 Load: 38.2 t ADT: 15,500

TR 298A

Poor

Over: RAYHILL SLOUGH

1M N ILL 177, St. Clair, IL

Built 1956 Load: 39.5 t ADT: 175

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

Related

Browse all → | Rankings →
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.