Union County, IL

192 public highway bridges

Union County Bridge Snapshot

Union County, Illinois contains 192 public highway bridges in the FHWA National Bridge Inventory. Roughly 51% are rated “Good,” 38% “Fair,” 2.6% “Poor,” and 2.6% 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.

192
Total Bridges
51%
Good
2.6%
Poor
2.6%
Structurally Deficient

Condition Distribution

Good
51% (98)
Fair
38% (73)
Poor
2.6% (5)
SD
2.6% (5)

All Bridges (192)

FAI 57 SB & US 51

Unknown

Over: FAS 926-BIG CREEK

0.2 MI E DONGOLA, Union, IL

Built 1959 ADT: 900

I 57 NB & US 51 NB

Unknown

Over: FAS 926-BIG CREEK

0.2 MI E DONGOLA, Union, IL

Built 1959 ADT: 900

I 57 NB

Unknown

Over: CH 17 CHRISTIAN CHAP

0.6 MI S ILL 146, Union, IL

Built 1959 ADT: 400

I 57 SB

Unknown

Over: CH 17 CHRISTIAN CHAP

0.6 MI S ILL 146, Union, IL

Built 1959 ADT: 400

FAI 57 NB

Unknown

Over: ILL 146

OVER ILL 146, Union, IL

Built 1958 ADT: 4,100

FAI 57 SB

Unknown

Over: ILL 146

OVER ILL 146, Union, IL

Built 1958 ADT: 4,100

I 57 NB

Unknown

Over: TR 276 N LICK CR RD

1.5 MI S JOHNSON CO, Union, IL

Built 1959 ADT: 150

I 57 SB

Unknown

Over: TR 276 N LICK CR RD

1.5 MI S JOHNSON CO, Union, IL

Built 1959 ADT: 150

CH 20 NEW HOPE RD

Unknown

Over: INTERSTATE 57

2 MI SW LICK CREEK, Union, IL

Built 1959 ADT: 14,300

TR 287 SWAN POND R

Unknown

Over: FAI 57 & US 51

0.1 MI S DONGOLA, Union, IL

Built 1957 ADT: 13,800

FAS 924-CH 4 EXIT

Unknown

Over: INTERSTATE 57

0.2 MI W LICK CREEK, Union, IL

Built 1959 ADT: 15,900

TR 141 CRAFT LN

Unknown

Over: INTERSTATE 57

3.4 MI N OF ILL 146, Union, IL

Built 1959 ADT: 14,300

TR 193 FRIENDSHIP

Unknown

Over: INTERSTATE 57

1.1 MI S ILL 146, Union, IL

Built 1959 ADT: 13,200

US 51 NB

Unknown

Over: FAI 57 SB

0.5 MI N DONGOLA, Union, IL

Built 1959 ADT: 13,200

I-57

Unknown

Over: SHAKE RAG ROAD

E OF DONGOLA, Union, IL

Built 2020 ADT: 75

I-57 SB

Unknown

Over: SHAKE RAG ROAD

E OF DONGOLA, Union, IL

Built 2019 ADT: 75

TR 90

Fair

Over: LINGLE CREEK

3 MI NW OF MILL CR, Union, IL

Built 1900 Load: 10.7 t ADT: 125

PRIV ENTR OFF ILL1

Fair

Over: CANY CREEK

6 MI S OF ALTO PASS, Union, IL

Built 1942 Load: 12.3 t

TR 276

Fair

Over: TRIB TO LICK CR

.3 MI EASTJCT CH 20, Union, IL

Built 1987 Load: 13.6 t ADT: 125

TR 67

Fair

Over: CREEK

.1M N FAS 1911, Union, IL

Built 1984 Load: 15.2 t ADT: 50

ILL 127 & ILL 146

Fair

Over: STREAM

0.6 MI W. JONESBORO, Union, IL

Built 1933 Load: 16.8 t ADT: 4,800

TR 88B

Fair

Over: GREEN CREEK TRIB

SE COR SEC14 T12SR2W, Union, IL

Built 1988 Load: 19.4 t ADT: 10

CH 5

Fair

Over: CACHE RIVER

.8M.W.SARATOGA CL, Union, IL

Built 1951 Load: 20.7 t ADT: 225

FAS 0926

Fair

Over: CREEK

1.6 MI E OF ILL 127, Union, IL

Built 1937 Load: 21.4 t ADT: 325

TR 236A

Fair

Over: CYPRESS CK

.6 M N CH 11, Union, IL

Built 1984 Load: 22.7 t ADT: 25

TR 17

Fair

Over: CREEK

2 MI E OF ALTO PASS, Union, IL

Built 1900 Load: 23.3 t ADT: 125

ILL 146

Fair

Over: DRAINAGE DITCH

1.2 MI E ILL 3, Union, IL

Built 1929 Load: 23.7 t ADT: 4,050

TR193

Fair

Over: CREEK

.5 M E US 51, Union, IL

Built 1900 Load: 24.3 t ADT: 225

TR 130

Fair

Over: CREEK

.25M.S.JCT. TR 55, Union, IL

Built 1961 Load: 24.6 t ADT: 500

TR 62

Fair

Over: SEMINARY FORK

1.5 MI S ALTO PASS, Union, IL

Built 1981 Load: 25.3 t ADT: 50

TR 89

Fair

Over: CLEAR CREEK

1.2 MI W OLD US 51, Union, IL

Built 1985 Load: 27.2 t ADT: 125

TR 19

Fair

Over: CREEK

1.1M NW JCT.FAS 1911, Union, IL

Built 1982 Load: 27.9 t ADT: 100

FAI 57 RAMP 233 OF

Fair

Over: STREAM

0.3 MI E DONGOLA, Union, IL

Built 1959 Load: 28.5 t ADT: 150

FAS 0923

Fair

Over: CREEK

1.7M.E.JCT.FAP100, Union, IL

Built 1963 Load: 28.5 t ADT: 325

FAS 2936 (UNMARKED

Fair

Over: CROOKED CREEK

3 MI S OF DONGOLA, Union, IL

Built 1985 Load: 29.2 t ADT: 1,250

TR 185

Fair

Over: DUTCH CREEK

2.7M SW ILL 146, Union, IL

Built 1964 Load: 29.2 t ADT: 75

TR 0225

Fair

Over: BIG CREEK

.4MI.W. OF I-57, Union, IL

Built 1983 Load: 29.5 t ADT: 175

US 51

Fair

Over: STREAM

3.7 MI N OF IL146, Union, IL

Built 1964 Load: 29.8 t ADT: 5,950

SBI 2B (UNMARKED)

Fair

Over: LITTLE CREEK

3 MI N DONGOLA, Union, IL

Built 1920 Load: 30.5 t ADT: 25

TR 165

Fair

Over: RUNNING LAKE DITCH

0.2 MI W OF ILL 3, Union, IL

Built 1981 Load: 30.8 t ADT: 100

TR 49

Fair

Over: STREAM

3.5 MI. N. WOLF LAKE, Union, IL

Built 1942 Load: 31.1 t ADT: 10

FAS 926

Fair

Over: CYPRESS CR. OVERFLOW

1.4 MI.W JOHNSON CO., Union, IL

Built 1978 Load: 31.8 t ADT: 500

TR 287

Fair

Over: BIG CREEK

.8M.E.DONGOLA CL., Union, IL

Built 1971 Load: 32.1 t ADT: 50

FAI 57

Fair

Over: LICK CREEK

1.9 MI S JOHNSON CO, Union, IL

Built 1960 Load: 32.4 t ADT: 15,900

ILL 127

Fair

Over: STREAM

1.2 MI N ILL 146, Union, IL

Built 1942 Load: 32.4 t ADT: 1,500

US 51

Fair

Over: TRIB OF CACHE CREEK

5.1 miles S of Jackson Co, Union, IL

Built 1964 Load: 32.4 t ADT: 5,950

ILL 127

Fair

Over: STREAM

2.4 M S.OF ALTO PASS, Union, IL

Built 1940 Load: 32.4 t ADT: 1,350

ILL 127

Fair

Over: TRIB TO DUTCH CREEK

2.8 MI SO.JONESBORO, Union, IL

Built 1985 Load: 32.4 t ADT: 1,200

FAS RT 924

Fair

Over: CACHE RIVER

4 MI NE ANNA, Union, IL

Built 1976 Load: 32.4 t ADT: 2,200

FAS 924

Fair

Over: LICK CREEK

1.5M.E.LICK CREEK, Union, IL

Built 1977 Load: 32.4 t ADT: 375

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