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)

CH 4

Good

Over: BEAR CREEK

2 MILES E HERRIN, Williamson, IL

Built 1983 Load: 32.4 t ADT: 2,150

TR 548B

Good

Over: CRAB ORCHARD CREEK

SE EDGE OF PITTSBURG, Williamson, IL

Built 1983 Load: 32.4 t ADT: 125

TR-167

Good

Over: Brushy Creek

5 MILE E PITTSBURG, Williamson, IL

Built 1983 Load: 32.4 t ADT: 75

TR 143

Good

Over: LAKE CREEK

1 MI N OF PITTSBURG, Williamson, IL

Built 1987 Load: 32.4 t ADT: 75

TR 612

Good

Over: BRUSHY CREEK

5 MI.EAST PITTSBURG, Williamson, IL

Built 1985 Load: 32.4 t ADT: 50

TR 202

Good

Over: NAMELESS-STREAM

3.5 MI WEST MARION, Williamson, IL

Built 1984 Load: 32.4 t ADT: 50

FAS 2903-CH 4

Good

Over: UNNAMED STREAM

1 MI. EAST OF HERRIN, Williamson, IL

Built 1987 Load: 32.4 t ADT: 2,050

TR 23

Good

Over: LAKE CREEK

2 MILES NEHERRIN, Williamson, IL

Built 1985 Load: 32.4 t ADT: 275

TR-606

Good

Over: Brushy Creek

4 MILES SE CORINTH, Williamson, IL

Built 1985 Load: 32.4 t ADT: 125

FAS 876

Good

Over: POND CREEK

0.5M SW FREEMAN SPUR, Williamson, IL

Built 1989 Load: 32.4 t ADT: 1,900

TR 604

Good

Over: PRAIRIE CREEK

2 MI E CORINTH, Williamson, IL

Built 1992 Load: 32.4 t ADT: 50

FAS 903-CH 2

Good

Over: PRAIRIE CREEK

4 MI E OF CORINTH, Williamson, IL

Built 1991 Load: 32.4 t ADT: 400

TWP ROAD 652

Good

Over: SUGAR CREEK

3 MI NE CREAL SPRING, Williamson, IL

Built 1989 Load: 32.4 t ADT: 75

TR 605

Good

Over: CANA CREEK

0.5 M NW CREALSPGS, Williamson, IL

Built 1990 Load: 32.4 t ADT: 100

TR 315

Good

Over: BRIAR CREEK

5M SE CRAB ORCHARD, Williamson, IL

Built 1991 Load: 32.4 t ADT: 150

FAS 1900-CH 25

Good

Over: CANEY BRANCH

7 MI S CARTERVILLE, Williamson, IL

Built 1991 Load: 32.4 t ADT: 1,950

TR 610

Good

Over: BRUSHY CREEK

3 MI SE CORINTH, Williamson, IL

Built 1992 Load: 32.4 t ADT: 10

TR 432

Good

Over: S FORK SALINE RIVER

4 MI SE MARION, Williamson, IL

Built 1992 Load: 32.4 t ADT: 125

TR 245

Good

Over: ICGRR

.05 MI W SALINE CO, Williamson, IL

Built 1995 Load: 32.4 t ADT: 175

TR 43-CHITTYVILLE

Good

Over: POND CREEK TRIBUTARY

1 MI NE OF HERRIN, Williamson, IL

Built 1996 Load: 32.4 t ADT: 375

TR 35-THORN ROAD

Good

Over: POND CREEK

1.5 MI N OF CORINTH, Williamson, IL

Built 1997 Load: 32.4 t ADT: 50

TR 5-HARMONY CH RO

Good

Over: UNNAMED STREAM

3 MI NE JOHNSTON CTY, Williamson, IL

Built 1997 Load: 32.4 t ADT: 600

TR 29-DEAN ROAD

Good

Over: POND CREEK TRIB

3 MI NE JHNSTON CITY, Williamson, IL

Built 1998 Load: 32.4 t ADT: 150

TR 606-SOMERS CH R

Good

Over: UNNAMED STREAM

8 MI NE PITTSBURG, Williamson, IL

Built 1998 Load: 32.4 t ADT: 125

TR 428

Good

Over: S FORK SALINE RIVER

3MI SE OF MARION, Williamson, IL

Built 2000 Load: 32.4 t ADT: 25

TR 509

Good

Over: WOLF CREEK

5 MI S OF MARION, Williamson, IL

Built 2000 Load: 32.4 t ADT: 10

TR 664

Good

Over: TRIB TO GRASSSY CRK

1.2MI W OF STONEFORT, Williamson, IL

Built 2000 Load: 32.4 t ADT: 25

TR 269 E

Good

Over: TRIB TO WOLF CREEK

6 MI S OF MARION, Williamson, IL

Built 2001 Load: 32.4 t ADT: 100

ROCKY COMFORT RD

Good

Over: TRIB TO GRASSY LAKE

9MI S OF CARTERVILLE, Williamson, IL

Built 2002 Load: 32.4 t ADT: 350

TR 644

Good

Over: BRIAR CREEK

4 MI N OF STONEFORT, Williamson, IL

Built 2003 Load: 32.4 t ADT: 50

HARMONY CHURCH RD

Good

Over: TRIB TO POND CREEK

0.125 E. IL 37, Williamson, IL

Built 2003 Load: 32.4 t ADT: 800

TR 233

Good

Over: CRAB ORCHARD CREEK

1.5MI E IF PITTSBURG, Williamson, IL

Built 2003 Load: 32.4 t ADT: 275

TR 542

Good

Over: CRAB ORCHARD CREEK

1.2MI E OF PITTSBURG, Williamson, IL

Built 2003 Load: 32.4 t ADT: 200

TR 505 A

Good

Over: GRASSY CREEK

5 MI W PULLEYS MILL, Williamson, IL

Built 2005 Load: 32.4 t ADT: 175

PARTRIDGE RD

Good

Over: I.C.G. R.R.

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

Built 2008 Load: 32.4 t ADT: 50

NORTH BEND ROAD

Good

Over: HURRICANE CREEK

2 MI E OF HURST, Williamson, IL

Built 2006 Load: 32.4 t ADT: 100

TR 95

Good

Over: LITTLE HURRICANE CR

0.5 MI NORTH OF COLP, Williamson, IL

Built 2005 Load: 32.4 t ADT: 25

TR 268

Good

Over: WOLF CREEK

3 MI NW PULLEYS MILL, Williamson, IL

Built 2008 Load: 32.4 t ADT: 50

EWING ROAD

Good

Over: TURNER CREEK

3 M S. CRAB ORCHARD, Williamson, IL

Built 2011 Load: 32.4 t ADT: 125

SYCAMORE RD

Good

Over: CAMBRIA CREEK

1.5 MI W CAMBRIA, Williamson, IL

Built 2010 Load: 32.4 t ADT: 1,050

TR 603

Good

Over: BRUSHY CREEK

1 MI E CREAL SPRINGS, Williamson, IL

Built 2012 Load: 32.4 t ADT: 175

TR 538

Good

Over: LITTLE CRAB ORCHARD

1 MI W CRAB ORCHARD, Williamson, IL

Built 2012 Load: 32.4 t ADT: 250

TR 632

Good

Over: ROCK CREEK

3 MI E CRAB ORCHARD, Williamson, IL

Built 1976 Load: 32.4 t ADT: 325

VICKSBURG STREET

Good

Over: DRAINAGE DITCH

3 BLKS NORTH MAIN ST, Williamson, IL

Built 1979 Load: 32.4 t ADT: 400

COLLEGE & GRANITE

Good

Over: WEST END CREEK

MARION, Williamson, IL

Built 1989 Load: 32.4 t ADT: 800

BOYTON ST-FAU 9631

Good

Over: WEST END CREEK

MARION, Williamson, IL

Built 1997 Load: 32.4 t ADT: 5,000

MITCHELL ST

Good

Over: WEST END CREEK

MARION, Williamson, IL

Built 1997 Load: 32.4 t ADT: 75

LIBERTY STREET

Good

Over: WEST END CREEK

MARION, Williamson, IL

Built 1997 Load: 32.4 t ADT: 125

MONROE STREET

Good

Over: WEST END CREEK

MARION, Williamson, IL

Built 1997 Load: 32.4 t ADT: 150

HOLLAND AVENUE

Good

Over: WEST END CREEK

MARION, Williamson, IL

Built 1997 Load: 32.4 t ADT: 175

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.