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)

TR 498

Good

Over: BR MACOUPIN CR

4.0 MI E STANDARD CY, Macoupin, IL

Built 1925 Load: 55.4 t ADT: 35

FAP 325(IL 16)

Good

Over: Piasa Creek

1.9 mi E FAP10/IL111, Macoupin, IL

Built 2023 Load: 57.0 t ADT: 2,200

TR 185

Good

Over: LICK CREEK

2.8 M SE HETTICK, Macoupin, IL

Built 2007 Load: 58.3 t ADT: 20

TR 468

Good

Over: Honey Creek

0.77 mi S TR 297, Macoupin, IL

Built 2015 Load: 59.3 t ADT: 20

TR 65

Good

Over: E Fork Otter Creek

1 mile NW of Girard, Macoupin, IL

Built 2022 Load: 59.9 t ADT: 75

IL 111

Good

Over: OTTER CREEK

2.3 M N IL 108, Macoupin, IL

Built 2011 Load: 66.1 t ADT: 1,050

IL 111

Good

Over: SUGAR CREEK

4.81M S JCT IL 108, Macoupin, IL

Built 1992 Load: 82.0 t ADT: 900

TR 291

Good

Over: SPANISH CR

4 MI S CARLINVILLE, Macoupin, IL

Built 1977 Load: 89.1 t ADT: 150

TR 285

Poor

Over: HONEY CRK.

3E 4S CARLINVILLE, Macoupin, IL

Built 1900 ADT: 35

TR 98

Poor

Over: SOLOMON CR

1 MI N HETTICK, Macoupin, IL

Built 1977 ADT: 100

TR 170

Poor

Over: MACOUPIN CRK

BEAVER DAM ST. PARK, Macoupin, IL

Built 1900 Load: 4.5 t ADT: 50

TR 166

Poor

Over: COOP BR

2 MI N .5 MI E SHIPM, Macoupin, IL

Built 1917 Load: 5.8 t ADT: 100

TR 496

Poor

Over: HORSE CRK.

4.5 E NILWOOD, Macoupin, IL

Built 1916 Load: 17.2 t ADT: 20

TR 352

Poor

Over: CREEK

5.0 MI W VIRDEN, Macoupin, IL

Built 1991 Load: 18.8 t ADT: 50

TR 173

Poor

Over: JOE CREEK

3 MI. W. HETTICK, Macoupin, IL

Built 1916 Load: 19.4 t ADT: 50

TR 253/CROSSCREEK

Poor

Over: SHAW PT BR

7 MI E 1 MI S CARLIN, Macoupin, IL

Built 1900 Load: 19.4 t ADT: 20

TR 359

Poor

Over: CAHOKIA CREEK

2 MI S HORNSBY, Macoupin, IL

Built 1900 Load: 19.4 t ADT: 50

TR 359

Poor

Over: CAHOKIA CREEK

2 MI S HORNSBY, Macoupin, IL

Built 1900 Load: 19.4 t ADT: 50

TR 498

Poor

Over: CREEK

4.5 NE STANDARD CY, Macoupin, IL

Built 1900 Load: 19.4 t ADT: 35

IL 111

Poor

Over: PIASA CREEK

0.2 M S JCT IL 16, Macoupin, IL

Built 1929 Load: 20.1 t ADT: 4,200

9 MI. LANE

Poor

Over: SUGAR CREEK

4 MI. W. VIRDEN, Macoupin, IL

Built 1932 Load: 23.3 t ADT: 650

OLD IL 4

Poor

Over: HONEY CREEK

6M S IL108-CARLINVIL, Macoupin, IL

Built 1920 Load: 24.3 t ADT: 20

TR 429

Poor

Over: E FK WOOD R

2 W 2N BUNKER, Macoupin, IL

Built 1969 Load: 25.9 t ADT: 125

TR 130

Poor

Over: LICK CRK

3.5 MI SE HETTICK, Macoupin, IL

Built 1960 Load: 29.2 t ADT: 50

TR 402

Poor

Over: SUGAR CR

.5 S. 3.5 W. VIRDEN, Macoupin, IL

Built 1900 Load: 29.5 t ADT: 100

TOWNSHIP ROAD 451

Poor

Over: GIRDER CR

4.1 M E BRIGHTON, Macoupin, IL

Built 1900 Load: 30.5 t ADT: 200

FAS 1737

Poor

Over: JOE'S CRK

2.5 NW HETTICK, Macoupin, IL

Built 1967 Load: 31.1 t ADT: 200

FAS 0736

Poor

Over: WOOD RIVER

1.5 MI. W.BUNKERHILL, Macoupin, IL

Built 1932 Load: 32.4 t ADT: 1,900

TOWNSHIP ROAD 151

Poor

Over: CREEK

2.4 M ENE STD CITY, Macoupin, IL

Built 1981 Load: 32.7 t ADT: 50

TR 424

Poor

Over: HONEY CREEK

6 MI N EAGARVILLE, Macoupin, IL

Built 1994 Load: 53.5 t ADT: 20

CH 29

Poor

Over: CAHAOKA CREEK

6.5 N MT OLIVE, Macoupin, IL

Built 1975 Load: 88.8 t ADT: 350

STAUNTON BUNKR HIL

Poor

Over: BR. SHERRYCREEK

2.5 MI E. BUNKERHILL, Macoupin, IL

Built 1970 Load: 89.1 t ADT: 900

BUNKR HIL STUNTN R

Poor

Over: PADDOCK CREEK

E. EDGE BUNKER HILL, Macoupin, IL

Built 1980 Load: 89.1 t ADT: 1,250

CH 36

Structurally Deficient

Over: E.FK. OTTER CK.

3.0 MI NW NILWOOD, Macoupin, IL

Built 1959 ADT: 450

CH 11

Structurally Deficient

Over: MASSA CRK.

.5 E 2.5 S PALMYRA, Macoupin, IL

Built 1940 ADT: 150

TR 13

Structurally Deficient

Over: SUGAR CREEK

5 MI W VIRDEN, Macoupin, IL

Built 1900 ADT: 20

TR-55

Structurally Deficient

Over: Solomon Creek

NW Edge Palmyra, Macoupin, IL

Built 1962 ADT: 20

TR 205

Structurally Deficient

Over: CREEK

1 N 3E CARLINVILLE, Macoupin, IL

Built 1965 ADT: 150

TR 510/BIERMAN ROA

Structurally Deficient

Over: SHAW PT BR

7 E. 1.S. CARLINVILL, Macoupin, IL

Built 1900 ADT: 20

TR 33

Structurally Deficient

Over: BRUSH CRK.

1.2 M E OF VIRDEN, Macoupin, IL

Built 1954 Load: 4.5 t ADT: 100

TR 488

Structurally Deficient

Over: BRUSH CRK

1 MI NE VIRDEN, Macoupin, IL

Built 1955 Load: 5.2 t ADT: 200

CH 34

Structurally Deficient

Over: SOLOMON CRK.

3 SW OF HETTICK, Macoupin, IL

Built 1900 Load: 9.1 t ADT: 50

FAS 732

Structurally Deficient

Over: OTTER LAKE

6 MI. W. GIRARD, Macoupin, IL

Built 1968 Load: 13.9 t ADT: 950

OLD IL 4

Structurally Deficient

Over: HURRICANE CREEK

3M N IL108-CARLINVLE, Macoupin, IL

Built 1921 Load: 19.4 t ADT: 100

TR 189

Structurally Deficient

Over: ANDERSON BRANCH

3 W 1 S STAND. CITY, Macoupin, IL

Built 1900 Load: 19.4 t ADT: 100

FAS 736

Structurally Deficient

Over: GIRDER BR

5 MI. E. BRIGHTON, Macoupin, IL

Built 1919 Load: 19.8 t ADT: 2,650

TR 307

Structurally Deficient

Over: COOP BRANCH

3.0 MI E MEDORA, Macoupin, IL

Built 1968 Load: 26.6 t ADT: 50

TR 187

Structurally Deficient

Over: LICK CR

3.0 MI SE HETTICK, Macoupin, IL

Built 1974 Load: 44.7 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