Knox County, IL

321 public highway bridges

Knox County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Knox County, Illinois contains 321 public highway bridges. Roughly 45.8% are rated “Good,” 29.6% “Fair,” and 5.9% “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.

321

Total Bridges

45.8%

Good

29.6%

Fair

5.9%

Poor Condition

Condition Distribution

Good

45.8% (147)

Fair

29.6% (95)

Poor

5.9% (19)

All Bridges (321)

Sort:

I74WB REST AREA RA

Over: TRIB SPOON RIVER

SPOON RIVER RESTAREA, Knox, IL

Built 1976 Load: 89.1 t ADT: 500

COUNTY HIGHWAY 07

Over: MIDDLE CREEK

NE-4-T11NR2E, Knox, IL

Built 1956 Load: 89.1 t ADT: 325

TR 325

Over: HERMON CREEK

NE-17-T9NR2E, Knox, IL

Built 1975 Load: 89.1 t ADT: 25

FAS 398 - CH 20

Over: TRIB TO HAW CREEK

NW-1-T9NR2E, Knox, IL

Built 1973 Load: 89.1 t ADT: 100

STATE ST

Over: COURT CREEK

STATE&ATSFRR, Knox, IL

Built 1992 Load: 89.1 t ADT: 1,300

TR 192

Over: WALNUT CR

SW-7-T13NR3E, Knox, IL

Built 1900 Load: 17.5 t ADT: 25

TR 84

Over: POPE CREEK

SW-6-T13NR2E, Knox, IL

Built 1970 Load: 20.4 t ADT: 100

FAS 393-CH 4

Over: WALNUT CREEK

CTR-17-T13NR3E, Knox, IL

Built 1934 Load: 24.3 t ADT: 300

TR 194

Over: LITTLERS CREEK

NE-30-T9NR3E, Knox, IL

Built 1900 Load: 25.3 t ADT: 50

TR 84

Over: STREAM

NW-6-T12NR2E, Knox, IL

Built 1985 Load: 26.9 t ADT: 75

HENDERSON ST

Over: CEDAR CR DR DIT

1 BLK S MAIN ST, Knox, IL

Built 1900 Load: 32.4 t ADT: 4,450

TR 260

Over: HICKORY CR

SW-7-T9NR4E, Knox, IL

Built 1977 Load: 32.4 t ADT: 75

TR 32

Over: HENDERSON CREEK

SE-32-T13NR1E, Knox, IL

Built 1979 Load: 32.4 t ADT: 75

TR 195B

Over: MIDDLE CREEK

SE-13-T11NR2E, Knox, IL

Built 1980 Load: 32.4 t ADT: 50

TR 289

Over: TRIB TO FRENCH CREEK

SE-28-T10NR4E, Knox, IL

Built 1980 Load: 32.4 t ADT: 25

TR 79

Over: FOREMAN CREEK

W.CTR-3-T12NR3E, Knox, IL

Built 1978 Load: 32.4 t ADT: 10

TR 79

Over: TRIB TO FOREMAN CR

E1/2-3-T12NR3E, Knox, IL

Built 1980 Load: 32.4 t ADT: 10

TR 261

Over: HAW CREEK

CTR-13-T10NR2E, Knox, IL

Built 1978 Load: 32.4 t ADT: 50

TR 56

Over: POPE CREEK

SW-2-T13NR1E, Knox, IL

Built 1980 Load: 32.4 t ADT: 50

TR 2 CO LINE ROAD

Over: TRIB TO INDIAN CREEK

SW-7-T9NR1E, Knox, IL

Built 1980 Load: 32.4 t ADT: 50

TR 279

Over: PIG CREEK

S.CTR-28-T10NR2E, Knox, IL

Built 1982 Load: 32.4 t ADT: 50

TR 98

Over: HAW CREEK

NW-31-T11NR2E, Knox, IL

Built 1982 Load: 32.4 t ADT: 175

TR 260

Over: FRENCH CREEK

SE-36-T10NR3E, Knox, IL

Built 1982 Load: 32.4 t ADT: 25

TR 259

Over: BRUSH CREEK

SW-24-T10NR1E, Knox, IL

Built 1983 Load: 32.4 t ADT: 50

TR 254

Over: MUD RUN CREEK

NE-14-T13NR3E, Knox, IL

Built 1983 Load: 32.4 t ADT: 25

TR 172

Over: LITTLERS CREEK

S1/2-25-T9NR2E, Knox, IL

Built 1988 Load: 32.4 t ADT: 50

TR 6

Over: STREAM

NW-18-T11N,R1E, Knox, IL

Built 1983 Load: 32.4 t ADT: 75

TR 187

Over: SUGAR CR

NE-14-T11N,R3E, Knox, IL

Built 1983 Load: 32.4 t ADT: 25

TR 112

Over: MIDDLE CREEK

NE-5-T11NR2E, Knox, IL

Built 1984 Load: 32.4 t ADT: 75

TR 130

Over: HAW CREEK

S.CTR-15-T10NR2E, Knox, IL

Built 1985 Load: 32.4 t ADT: 75

TR 154

Over: STREAM

W.CTR.-23-T11NR2E, Knox, IL

Built 1983 Load: 32.4 t ADT: 250

TR 56A

Over: HENDERSON CREEK

SW-34-T13NR1E, Knox, IL

Built 1985 Load: 32.4 t ADT: 25

TR 15

Over: MUD RUN CREEK

NE-12-T13NR3E, Knox, IL

Built 1984 Load: 32.4 t ADT: 25

CO HWY 2

Over: POPE CREEK TRIB.

NE-20-T13NR2E, Knox, IL

Built 1985 Load: 32.4 t ADT: 150

TR 114

Over: TRIB TO POPE CREEK

NW-9-T13NR2E, Knox, IL

Built 1986 Load: 32.4 t ADT: 25

TR 320

Over: WALNUT CREEK

E1/2-2-T12NR4E, Knox, IL

Built 1986 Load: 32.4 t ADT: 25

TR 76

Over: POPE CREEK

SW-1-T13NR1E RIO TWP, Knox, IL

Built 1986 Load: 32.4 t ADT: 50

TR 250

Over: HICKORY CREEK

SW-11-T9NR3E, Knox, IL

Built 1986 Load: 32.4 t ADT: 25

TR 359

Over: TRIB TO SPOON RIVER

NE-33-T9NR2E, Knox, IL

Built 1987 Load: 32.4 t ADT: 10

CH 19

Over: FRENCH CREEK

W.CTR-32-T10NR4E, Knox, IL

Built 1988 Load: 32.4 t ADT: 100

TR 318

Over: FRENCH CREEK

SE-35-T11NR4E, Knox, IL

Built 1993 Load: 32.4 t ADT: 125

TR 305

Over: TRIB TO FRENCH CREEK

NW-5-T9NR4E, Knox, IL

Built 1988 Load: 32.4 t ADT: 100

TR 175

Over: MIDDLE CREEK

E1/2-11-T11NR2E, Knox, IL

Built 1995 Load: 32.4 t ADT: 225

TR 8

Over: INDIAN CREEK

CTR-18-T9NR1E, Knox, IL

Built 1990 Load: 32.4 t ADT: 25

TR 56A

Over: TRIB. S HENDERSON CR

NE-15-T12NR1E, Knox, IL

Built 1989 Load: 32.4 t ADT: 75

TR 152

Over: HAW CREEK

W1/2-14-T10NR2E, Knox, IL

Built 1990 Load: 32.4 t ADT: 50

FAS 394 - CH 12

Over: FOREMAN CREEK

SE-4-T12NR3E, Knox, IL

Built 1993 Load: 32.4 t ADT: 250

TR 240

Over: COURT CREEK

NE-22-T11NR3E, Knox, IL

Built 1989 Load: 32.4 t ADT: 10

TR 94

Over: STREAM

SW-29-T9NR2E, Knox, IL

Built 1990 Load: 32.4 t ADT: 10

TR 192A

Over: FOREMAN CREEK

S1/2-6-T12NR3E, Knox, IL

Built 1994 Load: 32.4 t ADT: 250

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

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Compiled by PlainBridges, Independent data publisher

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.