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:

EB I-74

Over: IL 17 & BNSF-EXEMPT

0.5 MI W OF WOODHULL, Knox, IL

Built 1967 ADT: 3,550

WB I-74

Over: IL 17 & BNSF-EXEMPT

0.5 MI W OF WOODHULL, Knox, IL

Built 1967 ADT: 3,200

TR 399-100N

Over: I-74

1 MI SW OF WOODHULL, Knox, IL

Built 1965 ADT: 15,000

EB I-74

Over: MAIN (FAU 6800)

GALESBURG INERCH, Knox, IL

Built 1963 ADT: 4,900

WB I-74

Over: E. MAIN ST

GALESBURG INTERCH, Knox, IL

Built 1963 ADT: 4,900

WB I-74

Over: TR 205

1 MI W JCT US 150, Knox, IL

Built 1963 ADT: 200

EB I-74

Over: TR 205

1 MI W OF US 150, Knox, IL

Built 1963 ADT: 200

WB US 34

Over: I-74

NE OF GALESBURG, Knox, IL

Built 1965 ADT: 16,300

EB US 34

Over: I-74

NE OF GALESBURG, Knox, IL

Built 1965 ADT: 16,300

US 34 WB

Over: US 150

N CL OF GALESBURG, Knox, IL

Built 1965 ADT: 9,500

US 34 EB

Over: US 150

N CL OF GALESBURG, Knox, IL

Built 1965 ADT: 6,300

US 150

Over: INTERSTATE 74

1 MI E OF KNOXVILLE, Knox, IL

Built 1963 ADT: 15,400

APPLETON ROAD

Over: I-74

6 MI E OF KNOXVILLE, Knox, IL

Built 1967 ADT: 15,400

FAS 396-CH 18

Over: I-74

3 MI E OF SPOON R, Knox, IL

Built 1968 ADT: 15,400

ONTARIO ROAD

Over: I-74

.5 MI N HENDERSON CR, Knox, IL

Built 1966 ADT: 16,300

RIO ROAD

Over: I-74

5 MI S WOODHULL, Knox, IL

Built 1966 ADT: 16,300

CH 21

Over: I-74

3 MI E OF KNOXVILLE, Knox, IL

Built 1967 ADT: 15,400

BRICKYARD RD (650

Over: I-74

1 MI NW KNOXVILLE, Knox, IL

Built 1963 ADT: 19,000

MARKET ST (825 E)

Over: I-74

IN KNOXVILLE, Knox, IL

Built 1962 ADT: 16,800

TR 235

Over: I-74

8 MI E OF KNOXVILLE, Knox, IL

Built 1968 ADT: 15,400

WB I-74

Over: SPOON R & TR 238A

9 MI E OF KNOXVILLE, Knox, IL

Built 1968 ADT: 25

EB I-74

Over: SPOON RIVER & TR238A

9 MI E OF KNOXVILLE, Knox, IL

Built 1968 ADT: 25

TR 253

Over: I-74

6 MI E SPOON RIVER, Knox, IL

Built 1967 ADT: 15,400

KNOX ST

Over: I-74

S OF GALESBURG INTER, Knox, IL

Built 1964 ADT: 19,000

CH 7

Over: I-74

1 MI N GALESBURG INT, Knox, IL

Built 1963 ADT: 17,700

TR 121 (2000N)

Over: I-74

1.5 MI N US-34 INTER, Knox, IL

Built 1965 ADT: 16,300

HENDERSON RD (CH 3

Over: I-74

2.5 MI W OF WATAGA, Knox, IL

Built 1965 ADT: 16,300

TR 89

Over: I-74

2.5 MI S HENDERSON C, Knox, IL

Built 1965 ADT: 16,300

TR 21

Over: I-74

4 MI SW OF WOODHULL, Knox, IL

Built 1965 ADT: 16,300

TR 74 FARNHAM ST

Over: US 34 BYPASS

W OF I-74&34 INTERCH, Knox, IL

Built 1965 ADT: 14,500

BNSF(065601P)

Over: US 34 BYPASS

1.5 MI E OF US 150, Knox, IL

Built 1965 ADT: 14,500

SEMINARY ST

Over: US 34 BYPASS

1 MI E OF US 150, Knox, IL

Built 1972 ADT: 12,900

LINCOLN PARK DR

Over: US 34 BYPASS

0.6 MI E OF US 150, Knox, IL

Built 1965 ADT: 12,900

FREMONT ST FAU 679

Over: US 34 BYPASS

1.13 M N OF IL41/164, Knox, IL

Built 1971 ADT: 9,100

US 34 WB

Over: W. MAIN ST

0.3 MI W IL 41, Knox, IL

Built 1976 ADT: 7,500

US 34 EB

Over: W MAIN ST

0.3 MI W IL 41, Knox, IL

Built 1976 ADT: 4,450

W Knox Rd

Over: US 34

SW GALESBURG AIRPORT, Knox, IL

Built 1979 ADT: 8,950

FAS 1400-CH 9

Over: EB and WB I 74

Knoxville Interchang, Knox, IL

Built 2016 ADT: 16,800

WB I 74

Over: BNSF(079799R)

0.73MI S of US 34, Knox, IL

Built 2017 ADT: 1,200

EB I 74

Over: BNSF

0.73MI S of US 34, Knox, IL

Built 2018 ADT: 1,200

FAU 6838-CH 10

Over: BNSF RR & GRAVEL RD

NW-27-T11NR1E, Knox, IL

Built 1985 ADT: 225

AT&SF RR (004676W)

Over: MCCLURE ST

ON MCCLURE S OF MAIN, Knox, IL

Built 1966 ADT: 1,850

BN RR (062996D)

Over: NORTH ST

ON NORTH W.- LINCOLN, Knox, IL

Built 1888 ADT: 1,000

ADMIRAL WALKWAY

Over: LINWOOD RD-ILL. 41

0.84 S. OF MAIN ST, Knox, IL

Built 1986 ADT: 4,300

BN RR (072662X)

Over: ILL 8

CTR-10-T9NR4E, Knox, IL

Built 1927 ADT: 900

BN(097988K)

Over: ILL 78

SE-12-T9NR4E, Knox, IL

Built 1919 ADT: 1,400

BN(079211T)

Over: ILL 41

SE-20-T11NR1E, Knox, IL

Built 1903 ADT: 4,900

BN (063724U) 177.6

Over: ILL 116

0.1 M WEST OF IL 41, Knox, IL

Built 1934 ADT: 1,100

BN RR (062985R)

Over: SEMINARY ST

NW-14-T11NR1E, Knox, IL

Built 1900 ADT: 6,000

BN RR (093680D)

Over: LOSEY ST

CTR-11-T11NR1E, Knox, IL

Built 1934 ADT: 5,700

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

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