Warren County, IL

202 public highway bridges

Warren County Bridge Snapshot

Warren County, Illinois contains 202 public highway bridges in the FHWA National Bridge Inventory. Roughly 67.3% are rated “Good,” 21.8% “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.

202
Total Bridges
67.3%
Good
5.9%
Poor
5.9%
Structurally Deficient

Condition Distribution

Good
67.3% (136)
Fair
21.8% (44)
Poor
5.9% (12)
SD
5.9% (12)

All Bridges (202)

TR 97

Good

Over: BR. OF JOHNS CREEK

SE1/4-17-T11NR3W, Warren, IL

Built 2007 Load: 32.4 t ADT: 100

TR 73

Good

Over: Branch of Davids Crk

W.CTR-2-T11NR3W, Warren, IL

Built 2014 Load: 32.4 t ADT: 50

TR 70A

Good

Over: HEND CR

NE-1-T12NR3W, Warren, IL

Built 1980 Load: 32.4 t ADT: 50

TR 61

Good

Over: CEDAR CREEK

NE-35-T12NR3W, Warren, IL

Built 1982 Load: 32.4 t ADT: 75

TR 20

Good

Over: JOHN'S CREEK

NW-29-T12N,R3W, Warren, IL

Built 1983 Load: 32.4 t ADT: 50

TR 6

Good

Over: HENDERSON CREEK

NW-18-T12NR3W, Warren, IL

Built 1985 Load: 32.4 t ADT: 50

TR 45A

Good

Over: CEDAR CREEK

SW-23-T12NR3W, Warren, IL

Built 1984 Load: 32.4 t ADT: 25

TR 22

Good

Over: HENDERSON CREEK

SW-8-T12NR3W, Warren, IL

Built 1988 Load: 32.4 t ADT: 50

TR 22

Good

Over: CEDAR CREEK

CTR-20-T12NR3W, Warren, IL

Built 1992 Load: 32.4 t ADT: 50

TR 59

Good

Over: JOHN'S CREEK

E. CTR-32-T12NR3W, Warren, IL

Built 1996 Load: 32.4 t ADT: 35

TR 22

Good

Over: DUCK CREEK

NW-5-T12NR3W, Warren, IL

Built 2000 Load: 32.4 t ADT: 25

TR 50

Good

Over: HEND CR

SW-2-T12NR3W, Warren, IL

Built 2005 Load: 32.4 t ADT: 25

TR 45

Good

Over: BR CEDAR CR

SE-24-T12NR3W, Warren, IL

Built 2011 Load: 32.4 t ADT: 25

FAS 407 - CH 15

Good

Over: SLUG RUN

NW-16-T10NR1W, Warren, IL

Built 1965 Load: 33.7 t ADT: 250

TR 206

Good

Over: SLUG RUN

NE-16-T10NR1W, Warren, IL

Built 1977 Load: 35.0 t ADT: 50

TR 132

Good

Over: PICAYUNE CREEK

N.CTR-11-T9NR2W, Warren, IL

Built 1973 Load: 35.0 t ADT: 50

CAMERON RD-FAS 407

Good

Over: CEDAR CREEK

SW-23-T11NR1W, Warren, IL

Built 1979 Load: 36.0 t ADT: 375

TR 48

Good

Over: S HENDERSON CREEK

NW-23-T10NR3W, Warren, IL

Built 1979 Load: 36.3 t ADT: 50

TR 206

Good

Over: CEDAR CREEK TRIB

NW 1/4 SEC27 T11NR1W, Warren, IL

Built 1985 Load: 36.6 t ADT: 75

TR 132

Good

Over: NEGRO CREEK

S1/2-23-T9NR2W, Warren, IL

Built 1979 Load: 37.3 t ADT: 50

CH 19

Good

Over: LITTLE SWAN CREEK

SE-17-T8NR1W, Warren, IL

Built 1990 Load: 37.9 t ADT: 475

FAS 1408 - CH 17

Good

Over: PICAYUNE CREEK

NW-10-T9NR2W, Warren, IL

Built 1968 Load: 38.2 t ADT: 250

CH-4 (FAS-410)

Good

Over: HENDERSON CREEK

N.CTR-22-T12NR1W, Warren, IL

Built 2023 Load: 38.2 t ADT: 600

TR-254

Good

Over: Cedar Creek

N.CTR-25-T9NR1W, Warren, IL

Built 1968 Load: 38.2 t ADT: 250

TR 209

Good

Over: CEDAR FORK CREEK

S LINE-14-T9NR1W, Warren, IL

Built 1984 Load: 38.2 t ADT: 25

TR 179

Good

Over: SOUTH FORK CREEK

0.25 MI E TR-36, Warren, IL

Built 2020 Load: 38.9 t ADT: 50

OLD US 34

Good

Over: CEDAR CR TRIB

.5 MI E OF MONMOUTH, Warren, IL

Built 2002 Load: 39.2 t ADT: 450

TR 162

Good

Over: CEDAR CREEK

SW-19-T11N,R1W, Warren, IL

Built 1983 Load: 39.9 t ADT: 25

TR 160

Good

Over: PICAYUNE CR

NE-13-T9NR2W, Warren, IL

Built 1982 Load: 40.2 t ADT: 25

TR 87

Good

Over: BR JOHNS CREEK

4 MI S of Little York, Warren, IL

Built 2021 Load: 42.1 t ADT: 75

US 34

Good

Over: Cedar Creek

0.9 Mi W of Knox Co Line, Warren, IL

Built 2023 Load: 46.0 t ADT: 8,950

TR 186

Good

Over: Little Swan Creek

4 MI West of Avon, Warren, IL

Built 2022 Load: 47.0 t ADT: 125

OLD US 67

Good

Over: HENDERSON CREEK

3 MI S OF MONMOUTH, Warren, IL

Built 1991 Load: 49.6 t ADT: 50

TR 47

Good

Over: BR HEND CR

N.CTR-29-T12NR2W, Warren, IL

Built 1980 Load: 52.2 t ADT: 25

TR 166

Good

Over: SWAN CREEK

SE-7-T8NR1W, Warren, IL

Built 1981 Load: 66.4 t ADT: 75

FAS 406-CH 10

Good

Over: ELLISON CREEK

NW-34-T9NR3W, Warren, IL

Built 1934 Load: 73.5 t ADT: 125

US 67

Good

Over: DRAINAGE DITCH

1.25MI S of IL 116, Warren, IL

Built 2002 Load: 89.1 t ADT: 3,350

US 67

Good

Over: DRAINAGE DITCH

0.6MI S of IL 116, Warren, IL

Built 2002 Load: 89.1 t ADT: 3,400

US 67

Good

Over: DRAINAGE DITCH

0.6MI N of IL 116, Warren, IL

Built 2002 Load: 89.1 t ADT: 4,000

FAS 450-CH 19

Good

Over: BR SWAN CR

W.CTR-22-T8NR1W, Warren, IL

Built 1982 Load: 89.1 t ADT: 550

TR 175

Poor

Over: SLUG RUN

SE-26-T10NR1W, Warren, IL

Built 1900 ADT: 75

TR 70A

Poor

Over: CEDAR CR

NE-12-T11NR3W, Warren, IL

Built 1900 Load: 13.9 t ADT: 20

TR 3

Poor

Over: BR MID HEND CR

NW-2-T12NR1W, Warren, IL

Built 1974 Load: 15.9 t ADT: 50

TR 183

Poor

Over: SOUTH FORK CREEK

NE-5-T10NR3W, Warren, IL

Built 1981 Load: 36.6 t ADT: 50

US 34 & 67 (NB)

Poor

Over: BNSF RR (079039A)

.8 MI N JCT US 34&67, Warren, IL

Built 1975 Load: 37.9 t ADT: 8,100

TR 158

Poor

Over: TRIB. LITTLE SWAN CR

SE-24-T8NR2W, Warren, IL

Built 1992 Load: 39.2 t ADT: 50

US 67

Poor

Over: MIDDLE HEND'N CR

0.8 MI S OF ILL 135, Warren, IL

Built 1954 Load: 46.0 t ADT: 2,250

US 34

Poor

Over: CEDAR CREEK TRIB

NE 1/4 SEC28 T11NR1W, Warren, IL

Built 1985 Load: 89.1 t ADT: 8,950

US 34,IL 164, IL 1

Poor

Over: CEDAR CR TRIB

1.3MI E OF US 67, Warren, IL

Built 1964 Load: 99.9 t ADT: 9,450

CH-7

Structurally Deficient

Over: Cedar Creek

CTR-9-T11NR2W, Warren, IL

Built 1900 Load: 4.5 t ADT: 150

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

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial