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)

RHINE RD

Good

Over: TRIB TO CLEAR CREEK

4.6M SW OF ALTO PASS, Union, IL

Built 2010 Load: 32.4 t ADT: 25

LINGLE CREEK RD

Good

Over: LINGLE CREEK

2 MI NW MILL CREEK, Union, IL

Built 2009 Load: 32.4 t ADT: 75

KRATSINGER HOLLOW

Good

Over: GREEN CREEK

0.1MI N ILL 146, Union, IL

Built 2010 Load: 32.4 t ADT: 400

SPANISH BLUFF RD

Good

Over: TRIB TO CACHE RIVER

0.6 M S US 51, Union, IL

Built 2012 Load: 32.4 t ADT: 25

SADLER RD

Good

Over: LITTLE CREEK

1 MI SE OF ANNA, Union, IL

Built 2017 Load: 32.4 t ADT: 350

LINGLE CREEK RD

Good

Over: LINGLE CREEK

1.4M.N.MILL CREEK CL, Union, IL

Built 2011 Load: 32.4 t ADT: 75

Airport Road

Good

Over: Dutch Creek

1mi NW Lingle Cr Rd, Union, IL

Built 2012 Load: 32.4 t ADT: 75

TR 196 - FISHER LA

Good

Over: TRIB TO BIG CREEK

1 MILE SE DONGOLA, Union, IL

Built 2014 Load: 32.4 t ADT: 10

BARTSCH LA

Good

Over: TRIB TO CLEAR CREEK

MOUNTAIN GLENN, Union, IL

Built 2013 Load: 32.4 t ADT: 25

HAPPY HOLLER RD

Good

Over: CROOKED CREEK

1 MILE SW OF DONGOLA, Union, IL

Built 2015 Load: 32.4 t ADT: 50

CLARK LN

Good

Over: TRIB TO DUTCH CREEK

1 MI SW OF JONESBORO, Union, IL

Built 2014 Load: 32.4 t ADT: 25

TR 51

Good

Over: SEMINARY FORK

1 MI S ALTO PASS, Union, IL

Built 2013 Load: 32.4 t ADT: 25

TR 239

Good

Over: PORTERFIELD CREEK

2 MI NE DONGOLA, Union, IL

Built 2013 Load: 32.4 t ADT: 50

KERR CANYON RD

Good

Over: BRADSHAW CREEK

0.1MI S OF TR 57, Union, IL

Built 2016 Load: 32.4 t ADT: 10

TR-152 (Hughey Lan

Good

Over: Trib. Cache River

3 MI SE OF COBDEN, Union, IL

Built 2017 Load: 32.4 t ADT: 25

FAS 926

Good

Over: TRIB TO LINGLE CREEK

0.8 MI E OF IL 127, Union, IL

Built 1988 Load: 32.4 t ADT: 325

TR 115

Good

Over: UNNAMED STREAM

TRAIL TEARS FOREST, Union, IL

Built 1988 Load: 32.4 t ADT: 25

TR 115A

Good

Over: UNNAMED CREEK

TRAIL OF TEARS ST PK, Union, IL

Built 1997 Load: 32.4 t ADT: 10

NURSERY ROAD

Good

Over: TRIB TO CLEAR CREEK

UNION CO ST NURSERY, Union, IL

Built 1993 Load: 32.4 t ADT: 25

OR 3 (OFF US 51)

Good

Over: STREAM

1 MI N OF ILL 146, Union, IL

Built 1968 Load: 33.0 t ADT: 1,700

FAS 926

Good

Over: PORTERFIELD CREEK

3.3 MI E DONGOLA, Union, IL

Built 1978 Load: 34.3 t ADT: 650

FAI 57 RAMP 219 ON

Good

Over: STREAM

0.2 MI E DONGOLA, Union, IL

Built 1959 Load: 36.0 t ADT: 175

UNION SPRINGS RD

Good

Over: CEDAR CREEK

1.4MI EAST ALTO PASS, Union, IL

Built 2018 Load: 36.6 t ADT: 50

FAS 926-CH 14

Good

Over: BIG CREEK

1 MI NE OF DONGOLA, Union, IL

Built 1991 Load: 36.9 t ADT: 1,000

NASH ROAD

Good

Over: TRIB TO BIG CREEK

WRIGHT LA JUNCTION, Union, IL

Built 2019 Load: 37.3 t ADT: 10

BAUER RD

Good

Over: DUTCH CREEK

0.7 MI N OF TR 217, Union, IL

Built 2019 Load: 38.6 t ADT: 50

JOHNSON DAIRY ROAD

Good

Over: ADDS BRANCH

3.2 MI EAST OF I-57, Union, IL

Built 2022 Load: 38.9 t ADT: 10

ILL 3

Good

Over: BIG MUDDY RIVER

AT JACKSON CO LINE, Union, IL

Built 1958 Load: 40.2 t ADT: 1,100

NASH ROAD

Good

Over: TRIB TO BIG CREEK

5 MI SE OF ANNA, Union, IL

Built 2020 Load: 40.2 t ADT: 10

MILLER ROAD

Good

Over: MILL CREEK TRIB

1.3 MI N MILL CREEK, Union, IL

Built 2022 Load: 41.1 t ADT: 10

ILL 127

Good

Over: DUTCH CREEK

1.5 MI SO JONESBORO, Union, IL

Built 1987 Load: 41.8 t ADT: 1,600

ILL RTE 127

Good

Over: MILL CREEK

0.5 MI N MILL CREEK, Union, IL

Built 1988 Load: 43.1 t ADT: 900

NEW US 51

Good

Over: LITTLE CREEK

2 MI NW OF FAS 2936, Union, IL

Built 1998 Load: 44.7 t ADT: 2,900

FAP 885-IL 127/146

Good

Over: GREEN CREEK

0.3 MI E IL 127, Union, IL

Built 2002 Load: 52.8 t ADT: 5,000

I 57 NB

Good

Over: CYPRESS CREEK

0.7 MI S ILL 146, Union, IL

Built 1959 Load: 59.6 t ADT: 6,600

I 57 SB

Good

Over: CYPRESS CREEK

0.7 MI S ILL 146, Union, IL

Built 1959 Load: 59.6 t ADT: 6,600

FAS 1911 (UNMARKED

Good

Over: DRURY CREEK

0.8 MI N COBDEN, Union, IL

Built 2016 Load: 95.3 t ADT: 1,150

CH 3

Poor

Over: LITTLE CREEK

CH 3 IN DONGOLA, Union, IL

Built 1935 Load: 13.6 t ADT: 600

TR 295

Poor

Over: CROOKED CREEK

0.94 MI S OF CH 3, Union, IL

Built 1900 Load: 28.2 t ADT: 100

ILL 146

Poor

Over: CLEAR CREEK

2 MI E. OF ILL 3, Union, IL

Built 1976 Load: 34.0 t ADT: 4,050

ILL 146

Poor

Over: CYPRESS CREEK

1 MI W IS 57, Union, IL

Built 1931 Load: 36.9 t ADT: 4,650

FAS 924

Structurally Deficient

Over: BRADSHAW CR

3 MI SW OF LICK CR, Union, IL

Built 1981 Load: 24.0 t ADT: 2,150

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