Marion County, IL

301 public highway bridges

Marion County Bridge Snapshot

Marion County, Illinois contains 301 public highway bridges in the FHWA National Bridge Inventory. Roughly 56.5% are rated “Good,” 29.2% “Fair,” 5.6% “Poor,” and 5.6% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IL are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

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

301

Total Bridges

56.5%

Good

5.6%

Poor

5.6%

Structurally Deficient

Condition Distribution

Good

56.5% (170)

Fair

29.2% (88)

Poor

5.6% (17)

SD

5.6% (17)

All Bridges (301)

Sort:

TR-170

Over: NORTH FORK

3.5 MI ESE VERNON, Marion, IL

Built 1921 Load: 24.3 t ADT: 25

TR-176

Over: NORTH FORK

4 MI ESE VERNON, Marion, IL

Built 1909 Load: 24.3 t ADT: 25

TR-201

Over: DUMS CREEK

3.5 MI E SALEM, Marion, IL

Built 1909 Load: 24.3 t ADT: 75

FAS-787

Over: NORTH FORK CREEK

1 MI W PATOKA, Marion, IL

Built 1976 Load: 24.3 t ADT: 350

TR-445B

Over: WEBSTER CREEK

0.5 MI S CENTRALIA, Marion, IL

Built 1909 Load: 24.3 t ADT: 25

FAU 8591

Over: MARTIN BRANCH

1 MI E CENTRAL CITY, Marion, IL

Built 1941 Load: 24.3 t ADT: 2,450

SE 7TH STREET

Over: CREEK

SANDOVAL, Marion, IL

Built 1909 Load: 24.3 t

TR-415

Over: SCHWARTZ BRANCH

1 MI NW WALNUT HILL, Marion, IL

Built 1909 Load: 24.3 t ADT: 75

JEFFERSON AVE 7520

Over: TOWN CREEK

SALEM, Marion, IL

Built 1964 Load: 24.3 t ADT: 425

FAS-1793

Over: CROOKED CREEK

3.5 MI E CENTRAL CTY, Marion, IL

Built 1984 Load: 24.6 t ADT: 625

US 51 (FAP 322)

Over: LOUSE RUN TRIBUTARY

7.5 MI S FAYETTE C L, Marion, IL

Built 1920 Load: 25.3 t ADT: 2,750

CH-30

Over: SKILLET FORK

1 MI SW HELM, Marion, IL

Built 1915 Load: 25.3 t ADT: 75

TR-51

Over: SKILLET CREEK

6.5 MI E KINMUNDY, Marion, IL

Built 1909 Load: 25.9 t ADT: 50

TR-336

Over: BRUBAKER CREEK

2.5 MI E SALEM, Marion, IL

Built 1909 Load: 25.9 t ADT: 25

TR-466

Over: BRANCH

1 MI SE FARINA, Marion, IL

Built 1978 Load: 25.9 t ADT: 100

IL 37

Over: RACCOON CR TRB NORTH

.25 MI S ILL-161, Marion, IL

Built 1930 Load: 26.2 t ADT: 4,500

OLD US 51 (FAS 179

Over: PRAIRIE CREEK

.2 MI S SANDOVAL, Marion, IL

Built 1954 Load: 26.9 t ADT: 1,050

FAS-1793

Over: CROOKED CREEK

3 MI S ODIN, Marion, IL

Built 1987 Load: 26.9 t ADT: 625

US 50

Over: W Trib to Prairie Cr

NE OF SANDOVAL, Marion, IL

Built 1923 Load: 27.5 t ADT: 6,050

IL 37 (FAS 2701)

Over: SCHNEIDER SPRINGS BR

2 MI S FARINA, Marion, IL

Built 1952 Load: 28.8 t ADT: 1,200

US 51 (FAP 322)

Over: E FORK KASKASKIA OVF

9.6 MI S FAYETTE C L, Marion, IL

Built 1958 Load: 31.8 t ADT: 2,750

FAU-8591 (CH-11

Over: RACCOON CREEK

1 MI E CENTRAL CITY, Marion, IL

Built 1987 Load: 31.8 t ADT: 2,450

TR-218A

Over: WILLS CREEK

4 MI W ALMA, Marion, IL

Built 2010 Load: 32.1 t ADT: 25

IL 37

Over: IC RR

4.25 MI N SALEM, Marion, IL

Built 1930 Load: 32.4 t ADT: 2,350

FAI-57 NB

Over: CROOKED CREEK

3 MI S SALEM INT, Marion, IL

Built 1968 Load: 32.4 t ADT: 9,650

FAI-57 SB

Over: CROOKED CREEK

3 MI S SALEM INT, Marion, IL

Built 1968 Load: 32.4 t ADT: 9,650

I-57 NB

Over: IC RR

3 MI N SALEM INT, Marion, IL

Built 1968 Load: 32.4 t ADT: 8,350

I-57 SB

Over: ICRR

3 MI N SALEM INT, Marion, IL

Built 1967 Load: 32.4 t ADT: 8,350

TR-64

Over: CROOKED CREEK

2 MI E CENTRAL CITY, Marion, IL

Built 1974 Load: 32.4 t ADT: 200

TR-337

Over: ZION HILL BRANCH

0.5 MI NE RACON CK R, Marion, IL

Built 1975 Load: 32.4 t ADT: 100

TR-401A

Over: KRIETEMEYER BRANCH

0.5 MI E CENTRALIA, Marion, IL

Built 1974 Load: 32.4 t ADT: 375

FAS-789 (CH 27)

Over: DUMS CREEK

3 MI N IUKA, Marion, IL

Built 1986 Load: 32.4 t ADT: 675

FAS-789

Over: FULTON CREEK

2.5 MI S IUKA, Marion, IL

Built 1995 Load: 32.4 t ADT: 725

TR 249A

Over: BRUBAKER CREEK

1.5 MI SE SALEM, Marion, IL

Built 1996 Load: 32.4 t ADT: 400

TR 239

Over: ICG RR

4.5 MI E IUKA, Marion, IL

Built 1999 Load: 32.4 t ADT: 25

FAU 8592

Over: JOHNNIE BRANCH

N PART CENTRALIA, Marion, IL

Built 1999 Load: 32.4 t ADT: 900

TR 168

Over: JIMS CREEK

5 MI NNW SALEM, Marion, IL

Built 2004 Load: 32.4 t ADT: 75

TR-28

Over: WEBSTER CREEK

SE WAMAC, Marion, IL

Built 1975 Load: 32.4 t ADT: 125

FAU-8556

Over: SALEM RESERVOIR DAM

SALEM, Marion, IL

Built 1993 Load: 32.4 t ADT: 475

I-57 NB

Over: CSXRR

.25 MI S SALEM INT, Marion, IL

Built 1969 Load: 33.0 t ADT: 9,650

I-57 SB

Over: CSXRR

.25 MI S SALEM INT, Marion, IL

Built 1968 Load: 33.0 t ADT: 9,650

I-57 NB

Over: Abandoned M&IRR(UPRR)

.75 MI S SALEM INT, Marion, IL

Built 1968 Load: 33.4 t ADT: 9,650

I-57 SB

Over: Abandoned M&IRR(UPRR)

.75 MI S SALEM INT, Marion, IL

Built 1968 Load: 33.4 t ADT: 9,650

TR-165A

Over: SKILLET FORK

2 MI SE FORBES ST PK, Marion, IL

Built 1977 Load: 33.4 t ADT: 25

FAS-1793 (CH-9)

Over: TURKEY CREEK

0.6 MI S ODIN, Marion, IL

Built 1983 Load: 34.0 t ADT: 625

IL 161 - FAP 805

Over: RACCOON CREEK

3 MI E CENTRALIA, Marion, IL

Built 1974 Load: 35.0 t ADT: 5,150

TR-309

Over: TURKEY CREEK

1 MI S JUNCTION CITY, Marion, IL

Built 1991 Load: 35.0 t ADT: 425

TR-216

Over: CROOKED CREEK

3 MI SW SALEM, Marion, IL

Built 1982 Load: 35.3 t ADT: 225

FAI-57 NB

Over: E FORK KASKASKIA RV

2 MI S FAYETTE C L, Marion, IL

Built 1970 Load: 35.6 t ADT: 9,050

FAI-57 SB

Over: E FORK KASKASKIA RV

2 MI S FAYETTE CO LN, Marion, IL

Built 1969 Load: 35.6 t ADT: 9,050

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

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026