Montgomery County, IL

261 public highway bridges

Montgomery County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Montgomery County, Illinois contains 261 public highway bridges. Roughly 51% are rated “Good,” 36.4% “Fair,” and 6.1% “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.

261
Total Bridges
51%
Good
36.4%
Fair
6.1%
Poor Condition

Condition Distribution

Good
51% (133)
Fair
36.4% (95)
Poor
6.1% (16)

All Bridges (261)

TR 408

Poor

Over: CREEK

0.5 MI NE NOKOMIS, Montgomery, IL

Built 1900 Load: 13.6 t ADT: 150

TR 374

Poor

Over: HURRICANE CR

2.8 MI SE WITT, Montgomery, IL

Built 1900 Load: 16.2 t ADT: 25

TR 324

Poor

Over: CREEK

2.5 MI SW FILLMORE, Montgomery, IL

Built 1900 Load: 19.4 t ADT: 50

MS-1070 Seward St

Poor

Over: Ditch

HILLSBORO, Montgomery, IL

Built 1920 Load: 25.3 t ADT: 1,350

TR 225

Poor

Over: HURRICANE CR

5.2 MI SE WITT, Montgomery, IL

Built 1900 Load: 30.5 t ADT: 25

TR 321

Poor

Over: MDL FK SHOAL CR

4 MI SW HILLSBORO, Montgomery, IL

Built 1978 Load: 31.1 t ADT: 75

HILLSBORO MT OLIVE

Poor

Over: EAST BRANCH LAKE FK

0.8 MI E WALSHVILLE, Montgomery, IL

Built 1960 Load: 32.4 t ADT: 500

HILLSBORO WALSHVIL

Poor

Over: MIDDLE FK SHOAL CK

1.2 MI W HILLSBORO, Montgomery, IL

Built 1958 Load: 37.3 t ADT: 1,100

HILLSBORO FILLMORE

Poor

Over: WEST BRANCH DRY FORK

1.8 MI W OF FILLMORE, Montgomery, IL

Built 1969 Load: 41.5 t ADT: 550

TR 0173

Poor

Over: THREE MILE BR

4.5 MI N LITCHFIELD, Montgomery, IL

Built 1964 Load: 88.8 t ADT: 25

TR 0193

Poor

Over: SHOP CREEK

3.0 NW LITCHFIELD, Montgomery, IL

Built 1975 Load: 88.8 t ADT: 50

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.