Macoupin County, IL

248 public highway bridges

Macoupin County Bridge Snapshot

Macoupin County, Illinois contains 248 public highway bridges in the FHWA National Bridge Inventory. Roughly 34.7% are rated “Good,” 41.1% “Fair,” 16.1% “Poor,” and 16.1% 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.

248
Total Bridges
34.7%
Good
16.1%
Poor
16.1%
Structurally Deficient

Condition Distribution

Good
34.7% (86)
Fair
41.1% (102)
Poor
16.1% (40)
SD
16.1% (40)

All Bridges (248)

IL 111

Fair

Over: LITTLE PIASA CREEK

3.7 M S JCT IL 16, Macoupin, IL

Built 1929 Load: 39.5 t ADT: 4,550

TOWNSHIP ROAD 354

Fair

Over: SUGAR CREEK

4.5 MI WEST VIRDEN, Macoupin, IL

Built 1981 Load: 39.5 t ADT: 125

IL 111

Fair

Over: S BR LITTLE PIASA CR

4.0 M S JCT IL 16, Macoupin, IL

Built 1929 Load: 41.5 t ADT: 4,550

TR 224

Fair

Over: BEAR CREEK

4.0 MI NW CARLINVILL, Macoupin, IL

Built 1957 Load: 42.1 t ADT: 50

TR 440

Fair

Over: CAHOKIA CREEK

1 MI SO EGARVILLE, Macoupin, IL

Built 1992 Load: 42.1 t ADT: 25

TR 328

Fair

Over: SPANISH CR

3.5 M S C-VILLE LAKE, Macoupin, IL

Built 1980 Load: 42.8 t ADT: 50

ILL 4

Fair

Over: CAHOKIA CREEK

1.0 M N STAUNTON, Macoupin, IL

Built 1921 Load: 45.0 t ADT: 2,800

ILL 108

Fair

Over: HURRICANE CREEK

W EDGE CARLINVILLE, Macoupin, IL

Built 1992 Load: 48.6 t ADT: 1,750

ILL 4

Fair

Over: HURRICANE CREEK

2.5 M N CARLINVILLE, Macoupin, IL

Built 1960 Load: 48.6 t ADT: 2,900

ILL 4

Fair

Over: NSRR

2.0 M N STAUNTON, Macoupin, IL

Built 1959 Load: 49.6 t ADT: 2,800

IL 111

Fair

Over: BEAR CREEK

1.2M S JCT IL 108, Macoupin, IL

Built 1929 Load: 50.2 t ADT: 1,000

ILL 108

Fair

Over: JOE'S CREEK

4MI. E JCT108&IL 267, Macoupin, IL

Built 1989 Load: 52.5 t ADT: 800

IL 111

Fair

Over: PIASA CR BRANCH

.8M S IL 16, Macoupin, IL

Built 1930 Load: 55.1 t ADT: 4,200

IL 4

Fair

Over: MACOUPIN CREEK

1.7M S IL 108, Macoupin, IL

Built 1960 Load: 55.7 t ADT: 4,450

ILL 138

Fair

Over: CAHOKIA CREEK

1.9MI W JCT FAI 55, Macoupin, IL

Built 1992 Load: 64.5 t ADT: 2,700

ILL 108

Fair

Over: DRAINAGE DITCH

0.1MI E IL 4, Macoupin, IL

Built 1933 Load: 89.1 t ADT: 6,950

ILL 108

Fair

Over: SUGAR CREEK

3.2MI E IL 4, Macoupin, IL

Built 1933 Load: 89.1 t ADT: 2,000

ILL 16

Fair

Over: COOP CR BRANCH

0.6MI W SHIPMAN, Macoupin, IL

Built 1932 Load: 89.1 t ADT: 2,200

ILL 16

Fair

Over: W FK COOP BRANCH

2.1MI W IL16/159 JCT, Macoupin, IL

Built 1932 Load: 89.1 t ADT: 1,800

TR 351

Fair

Over: CAHOKIA CR

4.5 NE EAGERVILLE, Macoupin, IL

Built 1920 Load: 89.1 t ADT: 175

FAS 736

Fair

Over: BRANCH OF SHERRY CR.

1.25MI.E.OF BUNKR HL, Macoupin, IL

Built 1980 Load: 89.1 t ADT: 1,200

IL 4

Fair

Over: MACOUPIN CR TRIB

.1M S IL 108, Macoupin, IL

Built 1960 Load: 92.0 t ADT: 4,450

FAS 732

Good

Over: MASSA CREEK

2MI E PALMYRA, Macoupin, IL

Built 1939 Load: 19.8 t ADT: 750

TR 422

Good

Over: RICHARDSON BRANCH

1 M SW STANDARD CTY, Macoupin, IL

Built 2009 Load: 23.3 t ADT: 35

BRGHTON BNKR HIL R

Good

Over: HONEYCUT BRANCH

2.3 M E BRIGHTON, Macoupin, IL

Built 1953 Load: 24.3 t ADT: 1,450

CH 12 FAS 732

Good

Over: EAST FRK OTTER CR

.75 M W GIRARD, Macoupin, IL

Built 1938 Load: 24.3 t ADT: 1,850

TR 32

Good

Over: PIASA CR.

4.0 MI W SHIPMAN, Macoupin, IL

Built 1901 Load: 24.3 t ADT: 150

TR 473

Good

Over: SHERRY CRK.

5 MI W STAUTON, Macoupin, IL

Built 1900 Load: 24.6 t ADT: 175

TR 22

Good

Over: LICK CREEK

1M SO 1M W SCOTTVILL, Macoupin, IL

Built 1986 Load: 26.6 t ADT: 20

TR 369

Good

Over: CAHOKIA CR

2 MI E GILLESPIE, Macoupin, IL

Built 1978 Load: 29.5 t ADT: 150

TR 134

Good

Over: BEAR CR

2 MI NE CHESTERFIELD, Macoupin, IL

Built 1977 Load: 30.8 t ADT: 35

IL 4

Good

Over: SPANISH NEEDLE CR BR

3M N IL 16-GILLESPIE, Macoupin, IL

Built 1987 Load: 32.4 t ADT: 2,050

OLD IL 4

Good

Over: HURRICANE CREEK

3.3M N IL108-CARLNVL, Macoupin, IL

Built 2007 Load: 32.4 t ADT: 100

TR 329

Good

Over: SPANISH NEEDLE CR

3 M N GILLESPI, Macoupin, IL

Built 2006 Load: 32.4 t ADT: 175

TR 477

Good

Over: W FRK CAHOKIA CR

3 M S WILSONVILLE, Macoupin, IL

Built 2009 Load: 32.4 t ADT: 125

TR 177

Good

Over: Shearles Branch

0.28 mi E TR 478, Macoupin, IL

Built 2022 Load: 32.4 t ADT: 50

CH 18

Good

Over: OTTER CREEK

1 MI. E. HETTICK, Macoupin, IL

Built 1955 Load: 32.4 t ADT: 275

FAS 1737 / CH 9

Good

Over: SOLOMON CREEK

.5 MI. W. HETTICK, Macoupin, IL

Built 1964 Load: 32.4 t ADT: 300

TR 305

Good

Over: COOP BRANCH

3 M NE MEDORA, Macoupin, IL

Built 2010 Load: 32.4 t ADT: 20

TR473

Good

Over: CREEK

4.5 MI. W.STAUTON, Macoupin, IL

Built 1977 Load: 32.4 t ADT: 75

TR 47

Good

Over: CREEK

1.5 MI SW VIRDEN, Macoupin, IL

Built 1980 Load: 32.4 t ADT: 50

TR 201

Good

Over: LICK CR

3.0 MI SE HETTICK, Macoupin, IL

Built 1983 Load: 32.4 t ADT: 20

TR 181

Good

Over: SOLOMON CRK

2.5 MI SW HETTICK, Macoupin, IL

Built 1984 Load: 32.4 t ADT: 20

TR 173

Good

Over: STEER CRK

3.5 MI W HETTICK, Macoupin, IL

Built 1984 Load: 32.4 t ADT: 50

TR 234

Good

Over: MAY CR

3MI S MACOUPIN STA, Macoupin, IL

Built 1984 Load: 32.4 t ADT: 100

TR 465

Good

Over: HONEY CUT BRANCH

1.5 SO 2.5E BRIGHTON, Macoupin, IL

Built 1986 Load: 32.4 t ADT: 325

TR 353

Good

Over: MAY BRANCH

2.5 MI NO ROYAL LAKE, Macoupin, IL

Built 1986 Load: 32.4 t ADT: 35

TR 237

Good

Over: JOES CREEK

4.5 MI NW CHESTERFIE, Macoupin, IL

Built 1985 Load: 32.4 t ADT: 50

FAS 732

Good

Over: E FK OTTER CR

2 M W GIRARD, Macoupin, IL

Built 2003 Load: 32.4 t ADT: 1,700

FAS 1741

Good

Over: MACOUPIN CREEK

6 MI E NILWOOD, Macoupin, IL

Built 2008 Load: 32.4 t ADT: 225

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