Knox County, IL

321 public highway bridges

Knox County Bridge Snapshot

Knox County, Illinois contains 321 public highway bridges in the FHWA National Bridge Inventory. Roughly 45.8% are rated “Good,” 29.6% “Fair,” 5.9% “Poor,” and 5.9% 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.

321
Total Bridges
45.8%
Good
5.9%
Poor
5.9%
Structurally Deficient

Condition Distribution

Good
45.8% (147)
Fair
29.6% (95)
Poor
5.9% (19)
SD
5.9% (19)

All Bridges (321)

ATSF (004646E)

Unknown

Over: E MAIN ST

E MAIN GALESBURG, Knox, IL

Built 1900 ADT: 1,450

BNSF (079789K)

Unknown

Over: ILL 167 (WATAGA)

NE-16-T12NR2E, Knox, IL

Built 1924 ADT: 1,150

ATSF(004625L)

Unknown

Over: ILL 180

@ WILLIAMSFIELD, Knox, IL

Built 1939 ADT: 1,350

BN RR (079800H)

Unknown

Over: FREMONT STREET

NE-11-T11NR1E, Knox, IL

Built 1900 ADT: 5,650

AT&SF RR (004632W)

Unknown

Over: CH 15

CTR-24-T11NR3E, Knox, IL

Built 1900 ADT: 625

BN RR (065617L)

Unknown

Over: TR 11

SE-4-T13NR1E, Knox, IL

Built 1900 ADT: 150

AT&SF RR (004628G)

Unknown

Over: TR 284

SW-21-T11NR4E, Knox, IL

Built 1910 ADT: 125

AT&SF RR(004644R)

Unknown

Over: MS 6000-EE ST

NE 18-T11N,R2E, Knox, IL

Built 1950 ADT: 100

BN RR (079801P)

Unknown

Over: LOSEY STREET

NE-11-T11NR1E, Knox, IL

Built 1991 ADT: 5,150

BNSF RR

Unknown

Over: FAU 6800 US 150/Main

1.43mi west of I-74, Knox, IL

Built 2017 ADT: 10,200

TR 116

Fair

Over: COURT CREEK

1 MI E GALESBURG, Knox, IL

Built 1928 Load: 9.1 t ADT: 125

COUNTY HIGHWAY 30

Fair

Over: OVER-FLOW LAKE STORY

N1/2-32-T12NR1E, Knox, IL

Built 1928 Load: 16.8 t ADT: 375

TR 151

Fair

Over: TRIB TO CALDWELL CRE

CTR-36-T12NR4E, Knox, IL

Built 1900 Load: 17.5 t ADT: 50

TR 263

Fair

Over: TRIB TO SPOON RIVER

NW-21-T10NR3E, Knox, IL

Built 1900 Load: 17.5 t ADT: 50

TR 323

Fair

Over: INDIAN CREEK

SW-10-T9NR1E, Knox, IL

Built 1900 Load: 17.5 t ADT: 10

TR 172

Fair

Over: TRIB TO SPOON RIVER

N. CTR-36-T9NR2E, Knox, IL

Built 1900 Load: 17.5 t ADT: 50

TR 273

Fair

Over: PIG CREEK

NE-28-T10NR2E, Knox, IL

Built 1900 Load: 17.5 t ADT: 25

TR 284A

Fair

Over: FRENCH CREEK

W.CTR-33-T10NR4E, Knox, IL

Built 1969 Load: 18.5 t ADT: 50

TR 287

Fair

Over: HAW CREEK

NW-36-T10NR2E, Knox, IL

Built 1968 Load: 19.1 t ADT: 25

TR 336

Fair

Over: WALNUT CREEK

N.CTR-1-T12NR4E, Knox, IL

Built 1973 Load: 20.4 t ADT: 25

TR 126

Fair

Over: HERMON CREEK

NW-10-T9NR2E, Knox, IL

Built 1967 Load: 21.4 t ADT: 100

FAI 74

Fair

Over: SPOON RIV TRIBUTARY

0.6 MI E. SPOON RIV, Knox, IL

Built 1968 Load: 21.7 t ADT: 15,400

TR 51

Fair

Over: FOREMAN CREEK

NW-35-T13NRS3E, Knox, IL

Built 1900 Load: 24.3 t ADT: 75

TR 159

Fair

Over: CALDWELL CREEK

NW-3-T11NR4E, Knox, IL

Built 1900 Load: 24.3 t ADT: 25

OAK RUN ROAD

Fair

Over: TRIB TO SPOON LAKE

SE-34-T12NR3E, Knox, IL

Built 1970 Load: 24.3 t ADT: 500

OAK RUN ROAD-TR 50

Fair

Over: SPOON LAKE OVERFLOW

SE-11-T11NR3E, Knox, IL

Built 1970 Load: 24.3 t ADT: 375

COUNTY HIGHWAY 37

Fair

Over: TRIB.S.HENDERSON CRK

SE-18-T12NR1E, Knox, IL

Built 1900 Load: 24.3 t ADT: 350

TR 220

Fair

Over: FOREMAN CREEK

W.CTR-4-T12NR3E, Knox, IL

Built 1971 Load: 25.9 t ADT: 10

TR 114

Fair

Over: POPE CREEK

SW-4-T13NR2E, Knox, IL

Built 1900 Load: 25.9 t ADT: 25

LOSEY ST. GALESBUR

Fair

Over: CEDAR CREEK

1100 BLK E. LOSEY, Knox, IL

Built 1925 Load: 25.9 t ADT: 5,150

TR 263

Fair

Over: SPOON RIVER

NE-23-TIONR3E, Knox, IL

Built 1986 Load: 27.2 t ADT: 50

TR 76

Fair

Over: HENDERSON CREEK

E.CTR-35-T13NR1E, Knox, IL

Built 1967 Load: 28.8 t ADT: 25

TR 21A

Fair

Over: TRIB TO POPE CREEK

NE-17-T13NR2E, Knox, IL

Built 1966 Load: 31.4 t ADT: 10

TR 171

Fair

Over: CALDWELL CREEK

W1/2-11-T11NR4E, Knox, IL

Built 1969 Load: 31.8 t ADT: 100

TR 36

Fair

Over: S HENDERSON CREEK

SW-21-T12NR1E, Knox, IL

Built 1971 Load: 32.1 t ADT: 75

US 150

Fair

Over: LAKE STOREY

1 MI N OF US 34, Knox, IL

Built 1928 Load: 32.4 t ADT: 3,250

COUNTY HIGHWAY 20

Fair

Over: SPOON RIVER

W.CTR-35-T10NR3E, Knox, IL

Built 1956 Load: 32.4 t ADT: 50

CO. HWY 27

Fair

Over: HAW CREEK

CTR-19-T10NR3E, Knox, IL

Built 1976 Load: 32.4 t ADT: 125

TR 31

Fair

Over: FITCH CREEK

W CTR-23-T13NR4E, Knox, IL

Built 1976 Load: 32.4 t ADT: 10

TR 238A

Fair

Over: TRIB TO SPOON RIVER

NW-7-T10NR4E, Knox, IL

Built 1977 Load: 32.4 t ADT: 25

TR 171

Fair

Over: TRIB TO SNAKEDEN CR

NW-9-T11NR4E, Knox, IL

Built 1976 Load: 32.4 t ADT: 50

TR 80

Fair

Over: BRUNK CREEK

NE-25-T10NR1E, Knox, IL

Built 1978 Load: 32.4 t ADT: 50

TR 30

Fair

Over: TRIB S HENDERSON CR.

SW-17-T12NR1E, Knox, IL

Built 1978 Load: 32.4 t ADT: 75

TR 1 CO LINE ROAD

Fair

Over: TRIB TO POPE CREEK

NE-5-T13NR2E, Knox, IL

Built 1980 Load: 32.4 t ADT: 50

TR 278

Fair

Over: TRIB TO WALNUT CREEK

NE-30-T13NR4E, Knox, IL

Built 1980 Load: 32.4 t ADT: 25

TR 39

Fair

Over: WALNUT CREEK

NW-21-T13NR3E, Knox, IL

Built 1982 Load: 32.4 t ADT: 50

CH 39

Fair

Over: SPOON RIVER

SW-34-T9NR2E, Knox, IL

Built 1985 Load: 32.4 t ADT: 175

FAS 399 - CH 26

Fair

Over: TRIB TO CEDAR FORK

E.CTR-7-T10NR1E, Knox, IL

Built 1984 Load: 32.4 t ADT: 725

FAS 394-CH 12

Fair

Over: COURT CREEK

NE 21 - T11N,R3E, Knox, IL

Built 1982 Load: 32.4 t ADT: 900

TR 341

Fair

Over: SPOON RIVER

NE-26-T9NR2E, Knox, IL

Built 1983 Load: 32.4 t ADT: 75

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