Brown County, IL

71 public highway bridges

Brown County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Brown County, Illinois contains 71 public highway bridges. Roughly 47.9% are rated “Good,” 38% “Fair,” and 14.1% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

71
Total Bridges
47.9%
Good
38%
Fair
14.1%
Poor Condition

Condition Distribution

Good
47.9% (34)
Fair
38% (27)
Poor
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 166

Poor

Over: MCCURDY BRANCH

2.1 MI S VERSAILLES, Brown, IL

Built 1915 Load: 16.2 t ADT: 50

FAS 582

Poor

Over: RUSSET BRANCH

W VERSAILLES CTY LMT, Brown, IL

Built 1957 Load: 19.4 t ADT: 250

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

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.