Brown County, IL

71 public highway bridges

Brown County Bridge Snapshot

Brown County, Illinois contains 71 public highway bridges in the FHWA National Bridge Inventory. Roughly 47.9% are rated “Good,” 38% “Fair,” 14.1% “Poor,” and 14.1% 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.

71
Total Bridges
47.9%
Good
14.1%
Poor
14.1%
Structurally Deficient

Condition Distribution

Good
47.9% (34)
Fair
38% (27)
Poor
14.1% (10)
SD
14.1% (10)

All Bridges (71)

TR 156

Good

Over: CAMP CREEK

3.6 M NW VERSAILLES, Brown, IL

Built 1988 Load: 32.4 t ADT: 25

TR 143

Good

Over: N BR DRY FORK

2 MI W HERSMAN, Brown, IL

Built 1999 Load: 32.4 t ADT: 25

TR 126

Good

Over: TRIB TO WEST CREEK

1MI E MT STERLING, Brown, IL

Built 1997 Load: 32.4 t ADT: 250

TR 48

Good

Over: LITTLE MISSOURI

3.0 MI NE TIMEWELL, Brown, IL

Built 1983 Load: 32.4 t ADT: 50

TR 216

Good

Over: CAMP CREEK

2.5 E VERSAILES, Brown, IL

Built 1982 Load: 32.4 t ADT: 225

TR 216

Good

Over: MARTIN BRANCH

2.5 MI E VERSAILLES, Brown, IL

Built 1998 Load: 32.4 t ADT: 225

TR 132

Good

Over: AVERY BRANCH

3 MILES WEST VERSALS, Brown, IL

Built 1978 Load: 32.4 t ADT: 25

TR 208

Good

Over: Branch of Little Crk

1.25 MI S FAS 584, Brown, IL

Built 2021 Load: 35.0 t ADT: 50

IL 107

Good

Over: MCKEE CREEK

7.2M S IL99-MT STRLG, Brown, IL

Built 1950 Load: 37.6 t ADT: 1,400

FAS 584

Good

Over: LOGAN CREEK

5.0 MI E OF MT STERL, Brown, IL

Built 1981 Load: 41.5 t ADT: 200

FAS 1583

Good

Over: LOGAN CREEK

1 MI SO RIPLEY, Brown, IL

Built 1905 Load: 52.2 t ADT: 225

TR 144

Poor

Over: NORTH FORK

1.99 mi S FAS 1581, Brown, IL

Built 1900 Load: 6.2 t ADT: 25

TR 24

Poor

Over: MISSOURI CREEK

6.7 MI N TIMEWELL, Brown, IL

Built 1920 Load: 9.4 t ADT: 75

TR 84A

Poor

Over: LITTLE MISSOURI

8.0 NW MT STERLING, Brown, IL

Built 1900 Load: 13.9 t ADT: 75

TR 156

Poor

Over: CAMP CREEK

2.5MI SE HERSMAN, Brown, IL

Built 1983 Load: 19.8 t ADT: 25

TR 84A

Poor

Over: SO BR LT MISSOURI

4.5 MI NW MT STERLIN, Brown, IL

Built 1900 Load: 24.3 t ADT: 75

CH-12 (FAS 582)

Poor

Over: CAMP CREEK

2 MI E VERSAILLES, Brown, IL

Built 1997 Load: 35.0 t ADT: 125

FAS 582

Poor

Over: LAMOINE RIVER

1.5MI NE COOPERSTOWN, Brown, IL

Built 1991 Load: 36.3 t ADT: 175

TR 111

Poor

Over: BR LOGAN CREEK

4 MI E MT STERLING, Brown, IL

Built 1900 Load: 89.1 t ADT: 25

TR 166

Structurally Deficient

Over: MCCURDY BRANCH

2.1 MI S VERSAILLES, Brown, IL

Built 1915 Load: 16.2 t ADT: 50

FAS 582

Structurally Deficient

Over: RUSSET BRANCH

W VERSAILLES CTY LMT, Brown, IL

Built 1957 Load: 19.4 t ADT: 250

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