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:

KINOKA RD (FAS 271

Over: FAI-57

KINMUNDY INT, Marion, IL

Built 1968 ADT: 18,100

IL 161 - FAP 805

Over: FAI-57

8 mi E of Centralia, Marion, IL

Built 1968 ADT: 19,300

PERRY LANE (FAS178

Over: FAI-57

4 MI S KINMUNDY INT, Marion, IL

Built 1968 ADT: 16,700

BOONE ST RD (TR 19

Over: FAI-57

1 MI N SALEM INT, Marion, IL

Built 1968 ADT: 16,700

WALNUT HILL RD(CH3

Over: FAI-57

MAR-JEFF CO LINE, Marion, IL

Built 1966 ADT: 25,000

NATION RD (CH 36)

Over: FAI-57

3.5 MI S SALEM INT, Marion, IL

Built 1968 ADT: 19,300

CH-20 TONTI RD

Over: FAI-57

2.75 MI N SALEM INT, Marion, IL

Built 1967 ADT: 16,700

TOWNHOUSE RD(TR 15

Over: FAI-57

4.75 MI N SALEM INT, Marion, IL

Built 1968 ADT: 16,700

CROSS ROAD (TR-249

Over: FAI-57

1.5 MI S SALEM INT, Marion, IL

Built 1968 ADT: 19,300

LEVEE ROAD (TR 341

Over: FAI-57

2 MI N ILL 161 INT, Marion, IL

Built 1968 ADT: 19,300

KELL ROAD (TR 435)

Over: FAI-57

2 MI S ILL 161 INT, Marion, IL

Built 1966 ADT: 25,000

FAI-57 NB

Over: US 50 (FAP-99)

SALEM INT, Marion, IL

Built 1968 ADT: 13,700

FAI-57 SB

Over: US-50

SALEM INT, Marion, IL

Built 1968 ADT: 14,900

OAK GROVE RD (CH 1

Over: FAI-57

3 MI S PATOKA INT, Marion, IL

Built 1968 ADT: 16,700

ROBB ROAD (TR 45)

Over: FAI-57

2 MI N PATOKA INT, Marion, IL

Built 1969 ADT: 18,100

ST PETER RD(FAS279

Over: FAI-57

2.75 MI S FAYETTE CL, Marion, IL

Built 1969 ADT: 18,100

BLOMBERG RD (TR396

Over: FAI-57

1.5 MI S FAYETTE C L, Marion, IL

Built 1969 ADT: 18,100

IL 161WB (McCord S

Over: 3 streets,BNSFRR,ATK,ICR

Centralia, Marion, IL

Built 1986 ADT: 1,775

UPRR

Over: US 50

SALEM, Marion, IL

Built 1987 ADT: 6,800

OAK STREET 6900

Over: FAP-805 (ILL-161)

CENTRALIA, Marion, IL

Built 1954 ADT: 7,100

IC RR

Over: SBI-2B

2MI S SANDOVAL, Marion, IL

Built 1930 ADT: 700

UNION PACIFIC RR

Over: FAS-2701 (ILL-37)

KINMUNDY, Marion, IL

Built 1900 ADT: 2,000

ICG RR

Over: FAS-795

.5 MI W CLAY CL, Marion, IL

Built 1900 ADT: 1,000

ICG RR

Over: TR-323

.5 MI W CLAY CL, Marion, IL

Built 1900 ADT: 10

ICG RR

Over: TR-528

4.5 MI E IUKA, Marion, IL

Built 1900 ADT: 25

SOUTHERN,IC,&CB&Q

Over: FAP-805 (ILL-161)

CENTRALIA, Marion, IL

Built 1954 ADT: 7,100

FAS-795

Over: SKILLET FORK CREEK

1 MI W HELM, Marion, IL

Built 1946 ADT: 1,000

FAS-795

Over: POPLAR CREEK

0.5 MI N HELM, Marion, IL

Built 1940 ADT: 1,000

TR-46

Over: FLAT CREEK

1 MI NW VERNON, Marion, IL

Built 1961 ADT: 50

TR-285

Over: ICG RR

4.5 MI N HELM, Marion, IL

Built 1909 Load: 12.6 t ADT: 10

IL 161 - FAP 805

Over: W Trib Raccoon Crk

1.4mi E US51 in Centralia, Marion, IL

Built 1930 Load: 13.9 t ADT: 8,550

KIN LOU RD-FAS 270

Over: SCHNEIDER SPRINGS BR

1 MI E KINMUNDY, Marion, IL

Built 1909 Load: 17.5 t ADT: 1,100

FAS-1787

Over: VERMILLION CREEK

1 MI W SALEM, Marion, IL

Built 1909 Load: 19.4 t ADT: 600

TR-219

Over: VERMILION CREEK

1 MI W SALEM, Marion, IL

Built 1909 Load: 19.4 t ADT: 500

TR-254

Over: FULKS CREEK

S PART SALEM, Marion, IL

Built 1966 Load: 19.4 t ADT: 725

TR-261

Over: VERMILION CREEK

2 MI S SALEM, Marion, IL

Built 1909 Load: 19.4 t ADT: 150

TR 270

Over: NORTH FORK

4 MI NW KINMUNDY, Marion, IL

Built 1918 Load: 19.4 t ADT: 25

IL 37 (FAS 2826)

Over: RACCOON CREEK SOUTH

1.4 MI S ILL-161, Marion, IL

Built 1930 Load: 21.7 t ADT: 4,500

TR-107

Over: SKILLET FORK

2.5 MI E FORBES S P, Marion, IL

Built 1909 Load: 21.7 t ADT: 50

US 50

Over: Trib to Turkey Creek

1 MI E ODIN, Marion, IL

Built 1951 Load: 22.0 t ADT: 6,700

TR-38

Over: CROOKED CREEK

1 MI E CENTRAL CITY, Marion, IL

Built 1909 Load: 22.0 t ADT: 150

US 50

Over: Brubaker Creek

2 MI E SALEM, Marion, IL

Built 1952 Load: 23.3 t ADT: 3,750

OLD US 51 (SBI 2C)

Over: WEBSTER CREEK

1.5 MI S WAMAC, Marion, IL

Built 1920 Load: 24.0 t ADT: 150

OLIVE STREET 2455A

Over: TOWN CREEK

SALEM, Marion, IL

Built 1964 Load: 24.0 t ADT: 275

KIN LOU RD-FAS 270

Over: LOST FORK

4 MI W CLAY CO LN, Marion, IL

Built 1909 Load: 24.3 t ADT: 575

CH-38

Over: PERKINS BRANCH

3 MI E VERNON, Marion, IL

Built 1909 Load: 24.3 t ADT: 75

CH-40

Over: HORSE CREEK

3.5 MI E KELL, Marion, IL

Built 1909 Load: 24.3 t ADT: 100

TR-6

Over: LOUSE CREEK

2 MI SW PATOKA, Marion, IL

Built 1971 Load: 24.3 t ADT: 175

TR-58A

Over: NORTH FORK

1 MI N PATOKA, Marion, IL

Built 1960 Load: 24.3 t ADT: 25

TR-120

Over: FLAT CREEK

1.5 MI NE VERNON, Marion, IL

Built 1909 Load: 24.3 t ADT: 50

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