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)

FAS 907 (CH 9)(UNM

Fair

Over: BIG MUDDY RIVER

1 MI S OF HURST, Williamson, IL

Built 1937 Load: 33.7 t ADT: 5,550

NEW IL 13 EB

Fair

Over: BANKSTON FORK

1.7 MI W SALINE CO, Williamson, IL

Built 1994 Load: 35.0 t ADT: 9,000

ILL 13 WB

Fair

Over: CRAB ORCHARD LAKE

1.6 MI E JACKSON CO, Williamson, IL

Built 1939 Load: 35.3 t ADT: 23,500

CH 1

Fair

Over: LAKE CREEKOVERFLOW

SW CORP LIM J CITY, Williamson, IL

Built 1979 Load: 35.3 t ADT: 600

ILL 148

Fair

Over: POND CREEK

1.1 MI S FRANKLIN CO, Williamson, IL

Built 1931 Load: 35.6 t ADT: 3,650

ILL 13 WB

Fair

Over: CRAB ORCHARD LAKE

1.1 MI E JACKSON CO, Williamson, IL

Built 1939 Load: 36.6 t ADT: 25,600

NEW ILL RTE 13

Fair

Over: L CRAB ORCHARD CR

CRAB ORCHARD, Williamson, IL

Built 1990 Load: 37.3 t ADT: 12,100

ILL 13

Fair

Over: DRAINAGE DITCH

0.1 M E OF ILL 166, Williamson, IL

Built 1962 Load: 37.9 t ADT: 12,100

ILL 37

Fair

Over: CRAB ORCHARD CREEK

SCL MARION, Williamson, IL

Built 1997 Load: 38.6 t ADT: 5,500

FAS 904

Fair

Over: LITTLE CRAB ORCHARD

2.06 MI SO PITTSBURG, Williamson, IL

Built 1972 Load: 39.9 t ADT: 2,950

TR 140

Fair

Over: HURRICANE CREEK

0.5 MILE N OF COLP, Williamson, IL

Built 1981 Load: 40.5 t ADT: 150

ILL 166

Fair

Over: SUGAR CREEK

AT ECL CREAL SPRINGS, Williamson, IL

Built 1933 Load: 42.4 t ADT: 1,400

I 57 NB

Fair

Over: CRAB ORCHARD CREEK

2 MI S OLD IL 13, Williamson, IL

Built 2006 Load: 45.7 t ADT: 17,350

I 57 SB

Fair

Over: CRAB ORCHARD CREEK

2 MI S OLD IL 13, Williamson, IL

Built 2006 Load: 45.7 t ADT: 17,350

FAS 1901

Fair

Over: CRAB ORCHARD SPILWAY

4 MI.SW CARTERVILLE, Williamson, IL

Built 1976 Load: 46.3 t ADT: 1,300

EB IL 13

Fair

Over: BNSF RR

1.3 MILES WEST I-57, Williamson, IL

Built 2014 Load: 46.7 t ADT: 26,300

SBI 13 (UNMARKED)

Fair

Over: PIGEON CREEK

1.1 MI W OF ILL 148, Williamson, IL

Built 1920 Load: 47.0 t ADT: 1,550

IL 148-FAP 726

Fair

Over: LITTLE WOLF CREEK

3.3 MI N OF I-57, Williamson, IL

Built 1958 Load: 48.6 t ADT: 6,150

I 57 NB

Fair

Over: LAKE CREEK BRANCH

4 MI N OF IL 13, Williamson, IL

Built 1961 Load: 53.1 t ADT: 20,650

I 57 SB

Fair

Over: LAKE CREEK BRANCH

4 MI N OF MARION, Williamson, IL

Built 1961 Load: 53.1 t ADT: 20,650

I 57 NB

Fair

Over: PROGRESSIVE RAIL

IN MARION, Williamson, IL

Built 2009 Load: 57.3 t ADT: 15,400

I 57 SB

Fair

Over: PROGRESSIVE RAIL

IN MARION, Williamson, IL

Built 2009 Load: 59.0 t ADT: 15,400

I 57 SB

Fair

Over: LAKE CREEK

0.3 MI S JOHNSTON C, Williamson, IL

Built 2005 Load: 67.7 t ADT: 20,650

I 57 NB

Fair

Over: LAKE CREEK

0.3 MI S JOHNSTON C, Williamson, IL

Built 2005 Load: 68.0 t ADT: 20,650

TR 632

Fair

Over: BANSTON CREEK

2 MI E CRAB ORCHARD, Williamson, IL

Built 1900 Load: 88.8 t ADT: 325

TR 544

Good

Over: POND CREEK

2.5 MI NW CORINTH, Williamson, IL

Built 1977 ADT: 200

FAS 1900

Good

Over: WOLF CREEK

4 MI NW PULLEYS MILL, Williamson, IL

Built 1942 Load: 16.2 t ADT: 1,000

FAS 1887

Good

Over: SUGAR CREEK BRANCH

7 MI S CRAB ORCHARD, Williamson, IL

Built 1953 Load: 17.5 t ADT: 300

TR 551

Good

Over: BNRR

0.6M W OF ILL 37, Williamson, IL

Built 1900 Load: 19.1 t ADT: 25

FAUS 9629 & 9637

Good

Over: WEST END CREEK

W MAIN & COURT, Williamson, IL

Built 1997 Load: 24.3 t ADT: 19,100

FAS 904

Good

Over: CREEK

2.3 MI SO PITTSBURG, Williamson, IL

Built 1972 Load: 27.9 t ADT: 2,950

TR 566

Good

Over: BUCKLEY CK.

1.25 MI SW PITTSBURG, Williamson, IL

Built 1974 Load: 28.2 t ADT: 450

ILL 148

Good

Over: CRAB ORCHARD LAKE

2.8 MI S OF ILL 13, Williamson, IL

Built 1938 Load: 29.2 t ADT: 6,150

TR 276

Good

Over: CLIFTYCR-LK OF EGYPT

2 MI E PULLEYS MILL, Williamson, IL

Built 1962 Load: 29.5 t ADT: 950

CH 13

Good

Over: S FORK SALINE RIVER

5 MI SOUTH MARION, Williamson, IL

Built 1968 Load: 30.8 t ADT: 1,600

ILL 13

Good

Over: STREAM

0.8 MI W OF FAI 57, Williamson, IL

Built 1959 Load: 32.4 t ADT: 26,300

FAU 9629

Good

Over: STREAM

W URBAN LIM-MARION, Williamson, IL

Built 1993 Load: 32.4 t ADT: 6,500

FAU 9629

Good

Over: STREAM

0.25 MI W BNRR OVH, Williamson, IL

Built 1993 Load: 32.4 t ADT: 7,900

FAU 9629

Good

Over: STREAM

0.6 MI W FAI 57, Williamson, IL

Built 1993 Load: 32.4 t ADT: 7,900

FAS 2887-IL 37

Good

Over: LAKE CREEK OVERFLOW

0.3MI S JHNSTON CITY, Williamson, IL

Built 2002 Load: 32.4 t ADT: 8,000

FAS 2887 (IL 37)

Good

Over: TRIB TO LAKE CR

0.11 M N STOTLAR RD, Williamson, IL

Built 2002 Load: 32.4 t ADT: 8,000

FAS 2887 (IL 37)

Good

Over: TRIB TO LAKE CREEK

0.06 M N STOTLAR RD, Williamson, IL

Built 2002 Load: 32.4 t ADT: 8,000

TR 505

Good

Over: WOLF CREEK

1.5 MI NW PULLEYS M., Williamson, IL

Built 1977 Load: 32.4 t ADT: 175

TR 505

Good

Over: MIDDLE WOLF CREEK

2 MI NW PULLEYS MILL, Williamson, IL

Built 1977 Load: 32.4 t ADT: 175

TR 603

Good

Over: SUGAR CREEK

1 MI E CREAL SPRINGS, Williamson, IL

Built 1977 Load: 32.4 t ADT: 125

TR 440

Good

Over: S FORK SALINE RIVER

4 MI SE OF MARION, Williamson, IL

Built 1978 Load: 32.4 t ADT: 125

TR 606

Good

Over: PRAIRIE CREEK

4 MI SE CORINTH, Williamson, IL

Built 1978 Load: 32.4 t ADT: 125

CH 14

Good

Over: LAKE CREEK

.2 MI E JOHNSTON CIT, Williamson, IL

Built 1980 Load: 32.4 t ADT: 450

TR-4

Good

Over: Stream

SALINE COUNTY LINE, Williamson, IL

Built 1982 Load: 32.4 t ADT: 100

TR-573

Good

Over: Cana Creek

2.5 MILES NW CREAL, Williamson, IL

Built 1981 Load: 32.4 t ADT: 200

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.