Williamson County, IL

204 public highway bridges

Williamson County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Williamson County, Illinois contains 204 public highway bridges. Roughly 61.8% are rated “Good,” 24% “Fair,” and 1.5% “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.

204

Total Bridges

61.8%

Good

24%

Fair

1.5%

Poor Condition

Condition Distribution

Good

61.8% (126)

Fair

24% (49)

Poor

1.5% (3)

All Bridges (204)

Sort:

BNSF RR

Over: INTERSTATE 57

1.6 MI S OLD RTE 13, Williamson, IL

Built 1959 ADT: 34,700

ILL 148 EXIT 45

Over: INTERSTATE 57

0.6 MI W OF ILL 37, Williamson, IL

Built 1960 ADT: 34,700

FAS 903 (CH 2)

Over: INTERSTATE 57

AT WCL JOHNSTON CITY, Williamson, IL

Built 1961 ADT: 43,200

FAS 1900 (CH 25)

Over: FAI 57

1.4 MI W OF ILL 37, Williamson, IL

Built 1959 ADT: 34,700

TR 23 (STIRITZ RD)

Over: INTERSTATE 57

0.6 MI W OF ILL 37, Williamson, IL

Built 1961 ADT: 43,200

TR 241 (CEDAR GROV

Over: INTERSTATE 57

0.9 MI W OF ILL 37, Williamson, IL

Built 1961 ADT: 41,300

CH 4 (STOTLAR RD)

Over: INTERSTATE 57

0.7 MI W OF ILL 37, Williamson, IL

Built 1961 ADT: 41,300

I-24 RAMP 0.94

Over: I-57

PULLEY'S MILL INTER, Williamson, IL

Built 1972 ADT: 32,000

I 24 EB

Over: INTERSTATE 57

PULLEY'S MILL INTER, Williamson, IL

Built 1972 ADT: 15,800

I 57 NB

Over: OLD ROUTE 13

IN MARION, Williamson, IL

Built 2009 ADT: 11,800

I 57 SB

Over: OLD ROUTE 13

IN MARION, Williamson, IL

Built 2009 ADT: 11,800

I-57 NB

Over: IL 13

S OF NCL MARION, Williamson, IL

Built 2013 ADT: 24,900

I-57 SB

Over: IL 13

S OF NCL MARION, Williamson, IL

Built 2013 ADT: 25,900

THE HILL AVE

Over: I-57

0.47MI E HALFWAY RD, Williamson, IL

Built 2008 ADT: 41,300

WB IL 13

Over: MARATHON DR

MARION, Williamson, IL

Built 2015 ADT: 750

EB IL 13

Over: MARATHON DR

MARION, Williamson, IL

Built 2014 ADT: 750

MORGAN AVE TO I-57

Over: IL 13

S OF NCL MARION, Williamson, IL

Built 2015 ADT: 3,850

I-57NB TO MORGAN A

Over: IL 13 EB TO I-57 NB

S OF NCL MARION, Williamson, IL

Built 2015 ADT: 800

WOLF CREEK RD

Over: IL 13

CRAINVILLE, Williamson, IL

Built 2017 ADT: 23,200

WESTMINSTER DR

Over: I-57

0.25 MI E WCL MARION, Williamson, IL

Built 2023 ADT: 2,250

ICG R.R.

Over: FAS 903

1 MI. W. SALINE CO., Williamson, IL

Built 1900 ADT: 450

B.N. R.R.

Over: FAS 1900

1 MI. W. ILL. 37, Williamson, IL

Built 1900 ADT: 1,100

B.N. R. R.

Over: OLD ROUTE 13

W. C.L. MARION, Williamson, IL

Built 1900 ADT: 7,900

ICG RR

Over: TR 9

FRANKLIN CO. L., Williamson, IL

Built 1900 ADT: 100

B.N. R.R.

Over: TR 385

0.5 MI. E. I-57, Williamson, IL

Built 1900 ADT: 50

CNIC RR

Over: FAP 331-IL 13

0.25 MI W SALINE CO, Williamson, IL

Built 1998 ADT: 9,000

GRASSY ROAD

Over: LITTLE GRASSY LK SPILLWY

10.0 MI SW OF HDQRTRS, Williamson, IL

Built 1939 Load: 7.3 t ADT: 800

TR 608

Over: MINE HAULAGE ROAD

1 MI N OF ILL 13, Williamson, IL

Built 1978 Load: 16.5 t ADT: 250

WOLF CREEK ROAD

Over: CRAB ORCHARD LAKE

2.5 MI SW OF HDQRTRS, Williamson, IL

Built 1938 Load: 17.2 t ADT: 150

CS 7000 OFF FAS 90

Over: DRAINAGE DITCH

0.7 M W JOHNSTON CIT, Williamson, IL

Built 1956 Load: 19.8 t ADT: 800

NO. DEVILS KITCHEN

Over: GRASSY CREEK

SEC 16 T10S R1E, Williamson, IL

Built 1959 Load: 20.0 t ADT: 200

FAS 904

Over: CRAB ORCHARD CREEK

0.67 MI SO PITTSBURG, Williamson, IL

Built 1972 Load: 22.7 t ADT: 2,850

WILDCAT DRIVE

Over: TRIB TO CRAB ORCH CK

SOUTH EDGE OF MARION, Williamson, IL

Built 1980 Load: 24.3 t ADT: 2,700

BOYTON ST

Over: DRAINAGE DITCH

BOYTON E OF PARK DR, Williamson, IL

Built 1967 Load: 24.3 t ADT: 2,400

FAS 903 (UNMARKED)

Over: BEAR CREEK

2 MI W JOHNSTON CITY, Williamson, IL

Built 1956 Load: 24.9 t ADT: 6,000

FAS 903 (UNMARKED)

Over: LAKE CREEK

1 MI W JOHNSTON CITY, Williamson, IL

Built 1956 Load: 25.6 t ADT: 6,000

TR 4

Over: STREAM

N E CORNER W'SON CO, Williamson, IL

Built 1900 Load: 28.2 t ADT: 75

ILL 148

Over: MIDDLE WOLF CREEK

2.3 MI N OF I-57, Williamson, IL

Built 1962 Load: 29.2 t ADT: 5,600

ILL 166

Over: S FORK SALINE RELIEF

3.3 MI S OF ILL 13, Williamson, IL

Built 1934 Load: 29.8 t ADT: 3,000

ILL 148

Over: BIG MUDDY RIVER

0.1 MI S FRANKLIN CO, Williamson, IL

Built 1931 Load: 30.1 t ADT: 3,650

ILL 166

Over: STREAM

2.7 MI SO OF ILL 13, Williamson, IL

Built 1934 Load: 31.1 t ADT: 3,000

ILL 13 EB

Over: CRABORCHARD CREEK

1 MI E OF MARION, Williamson, IL

Built 1962 Load: 32.1 t ADT: 13,800

ILL 13 WB

Over: CRABORCHARD CREEK

1 MI E OF MARION, Williamson, IL

Built 1962 Load: 32.1 t ADT: 13,800

TR 29

Over: POND CREEK

2 MI. NW CORINTH, Williamson, IL

Built 1977 Load: 32.4 t ADT: 75

TR 423

Over: LITTLE GRASSY CREEK

6 MI SW OF CARTERVIL, Williamson, IL

Built 1978 Load: 32.4 t ADT: 650

TR 509

Over: LITTLE WOLF CREEK

3 MI NW PULLEYS MILL, Williamson, IL

Built 1986 Load: 32.4 t ADT: 25

TR 278

Over: LITTLE SALINE CREEK

0200N-1050E, Williamson, IL

Built 1990 Load: 32.4 t ADT: 50

TR 552

Over: POND CREEK

5 MI N OF PITTSBURG, Williamson, IL

Built 1994 Load: 32.4 t ADT: 125

OLD IL 13-MAIN ST

Over: STREAM AT ECL MARION

NEAR ECL OF MARION, Williamson, IL

Built 2003 Load: 32.4 t ADT: 3,800

CH 13/S MARKET ST

Over: CRAB ORCHARD CR

AT SCL MARION, Williamson, IL

Built 1986 Load: 33.0 t ADT: 3,550

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

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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.