Total Bridges
27,743
Public highway bridges in Illinois
State profile · Near median Poor share
Illinois bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Illinois, based on the FHWA National Bridge Inventory.
- 27,743
- Public bridges
- 41.2%
- Good condition
- 7.9%
- Poor condition
Data updated May 2026
Good Condition
41.2%
11,426 bridges rated 7-9
-8.8pp vs 50% benchmark
Poor Condition
7.9%
2,186 bridges whose lowest applicable component is rated 0-4
0.9pp vs national avg 7.0%
Illinois vs national bridge condition
Illinois - Good condition share 41.2%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Illinois - Poor-condition share 26.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Counties (102)
Adams 325 Alexander 96 Bond 165 Boone 111 Brown 71 Bureau 382 Calhoun 81 Carroll 185 Cass 77 Champaign 743 Christian 323 Clark 232 Clay 171 Clinton 187 Coles 308 Cook 2185 Crawford 196 Cumberland 169 De Witt 197 DeKalb 264 Douglas 234 DuPage 380 Edgar 278 Edwards 79 Effingham 260 Fayette 356 Ford 300 Franklin 323 Fulton 210 Gallatin 82 Greene 166 Grundy 269 Hamilton 164 Hancock 291 Hardin 58 Henderson 144 Henry 331 Iroquois 565 Jackson 235 Jasper 180 Jefferson 270 Jersey 111 Jo Daviess 198 Johnson 120 Kane 354 Kankakee 352 Kendall 133 Knox 321 LaSalle 529 Lake 286 Lawrence 183 Lee 372 Livingston 578 Logan 296 Macon 368 Macoupin 248 Madison 543 Marion 301 Marshall 153 Mason 85 Massac 138 McDonough 210 McHenry 229 McLean 624 Menard 90 Mercer 162 Monroe 130 Montgomery 261 Morgan 241 Moultrie 171 Ogle 377 Peoria 365 Perry 139 Piatt 249 Pike 338 Pope 86 Pulaski 106 Putnam 50 Randolph 155 Richland 147 Rock Island 256 Saline 176 Sangamon 480 Schuyler 121 Scott 96 Shelby 330 St. Clair 502 Stark 89 Stephenson 332 Tazewell 361 Union 192 Vermilion 515 Wabash 88 Warren 202 Washington 232 Wayne 264 White 210 Whiteside 280 Will 674 Williamson 204 Winnebago 475 Woodford 222
Illinois vs nearby ranks
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Illinois on the same metric.
RI
Rhode Island
7.69% top marginal rate
NE
Nebraska
7.73% top marginal rate
IL
Illinois
7.88% top marginal rate
MA
Massachusetts
7.96% top marginal rate
MO
Missouri
8.53% top marginal rate
Bridges Needing Most Attention in Illinois
Six lowest-condition bridges in Illinois, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
FAS 1599
PoorOver: DRAINAGE CANAL
2.2 MI E MEYER, Adams, IL
Built 1980 Load: 0.6 t ADT: 200
CH 15
PoorOver: E FK MAZONRIVER
0.05 MI W CH 16, Grundy, IL
Built 1977 Load: 1.0 t ADT: 1,400
MOOSE RD - TR 240
PoorOver: WILSON CREEK
NE-35-T3NR2E, Fulton, IL
Built 1935 Load: 1.3 t ADT: 10
TR 10-B
PoorOver: KING CREEK
W EDGE OF MINERAL, Bureau, IL
Built 1899 Load: 1.6 t ADT: 10
TR-6
PoorOver: DRAINAGE DITCH
3.5 MI NE DIETERICH, Effingham, IL
Built 1909 Load: 1.6 t ADT: 25
TR208K(TWIN BRIDGE
PoorOver: BIG CREEK
NE EDGE MT ZION, Macon, IL
Built 1967 Load: 1.9 t ADT: 375
All Bridges in Illinois
US 136
FairOver: TRIB W FK BEAR CREEK
4.4M W IL94,CARTHAGE, Hancock, IL
Built 1976 Load: 97.2 t ADT: 2,900
I 64
FairOver: OAK RIDGE SCHOOL CK
3.5 MI W WOODLAWN IN, Jefferson, IL
Built 1974 Load: 97.2 t ADT: 28,600
US 45
FairOver: STREAM
2.3 MI S VIENNA, Johnson, IL
Built 1972 Load: 97.2 t ADT: 2,000
ILL 71
FairOver: STREAM
1.8 MI S OF US 52, LaSalle, IL
Built 1942 Load: 97.2 t ADT: 5,250
I 39&US 51
FairOver: DRY RUN CREEK
0.75 MI N OF US 30, Lee, IL
Built 1982 Load: 97.2 t ADT: 19,100
I 39&US 51
FairOver: HARMON CREEK SOUTH
3 MI N OF US 30, Lee, IL
Built 1982 Load: 97.2 t ADT: 19,100
I-88
FairOver: BEACH CREEK
1.4 MI SW OF OGLE CO, Lee, IL
Built 1972 Load: 97.2 t ADT: 16,100
I-88 (E-W TOLLWAY)
FairOver: BEACH CREEK
5 MI SW OGLE CO LN, Lee, IL
Built 1972 Load: 97.2 t ADT: 16,100
TR 290
FairOver: KICKAPOO CK TRIB
2 MI S ATLANTA, Logan, IL
Built 2004 Load: 97.2 t ADT: 75
I-72
FairOver: STREAM
4.5 MI E FORSYTH, Macon, IL
Built 1975 Load: 97.2 t ADT: 11,500
I-72
FairOver: STREAM
1 MI SE OF OREANA, Macon, IL
Built 1975 Load: 97.2 t ADT: 11,500
COLLINSVLLE BELTLI
FairOver: BRUSH CREEK
0.15MI EAST OF IL157, Madison, IL
Built 1933 Load: 97.2 t ADT: 17,700
I-55/74 (NB & SB)
FairOver: UNNAMED CREEK
1 MI N OF IL 9, McLean, IL
Built 1991 Load: 97.2 t ADT: 42,100
ILL 121(FAP 320)
FairOver: STREAM
1 MI SE DALTON CITY, Moultrie, IL
Built 1971 Load: 97.2 t ADT: 4,450
I-39 & US 51
FairOver: STREAM
1.93 MI N OF IL 38, Ogle, IL
Built 1981 Load: 97.2 t ADT: 29,600
I-74
FairOver: DRY RUN CR TRIB
SW-29-T9NR8E, Peoria, IL
Built 1965 Load: 97.2 t ADT: 20,350
I-72
FairOver: WOLF RUN
1.5 MI E OF CISCO, Piatt, IL
Built 1976 Load: 97.2 t ADT: 11,400
I-72 / US 36
FairOver: DRAINAGE DITCH
2.68M W IL96/HULL, Pike, IL
Built 1986 Load: 97.2 t ADT: 9,400
IL 84
FairOver: DRAINAGE DITCH
1.5 MI S CORDOVA, Rock Island, IL
Built 1931 Load: 97.2 t ADT: 3,850
IL 84
FairOver: DRAINAGE DITCH
N EDGE PORT BYRON, Rock Island, IL
Built 1931 Load: 97.2 t ADT: 4,550
I-72 / US 36
FairOver: LONG PT. SLOUGH TRIB
1.1M E ILLIOPLIS INT, Sangamon, IL
Built 1975 Load: 97.2 t ADT: 14,500
US 51
FairOver: STREAM
1.6 MI N OF IL 146, Union, IL
Built 1964 Load: 97.2 t ADT: 5,950
US 34
FairOver: TRIB TO CEDAR CR
4 MI E OF MONMOUTH, Warren, IL
Built 1979 Load: 97.2 t ADT: 8,050
ILL 127
FairOver: TRIB TO NASHVILLE CR
NCL NASHVILLE, Washington, IL
Built 1933 Load: 97.2 t ADT: 10,200
I-72
FairOver: BRANCH KISER CREEK
5.2M E BARRY INTCHG, Pike, IL
Built 1989 Load: 99.9 t ADT: 8,850
ILL. 13
FairOver: MID FORK SALINE RIV.
1.5 MI E HARRISBURG, Saline, IL
Built 1975 Load: 99.9 t ADT: 3,350
US 34
FairOver: TRIB TO CEDAR CR
0.4M E OF CAMERON RD, Warren, IL
Built 1986 Load: 99.9 t ADT: 8,950
US 34
FairOver: TRIB TO CEDAR CR
1.6M W OF KNOX CO LN, Warren, IL
Built 1986 Load: 99.9 t ADT: 8,950
US 20
FairOver: DRAINAGE DITCH
.2 MI E MERIDIAN RD, Winnebago, IL
Built 1964 Load: 99.9 t ADT: 14,600
US 20
FairOver: KENT CREEK
1.3 MI E MERIDIAN RD, Winnebago, IL
Built 1964 Load: 99.9 t ADT: 14,600
I-90
FairOver: STREAM
1 MI NE OF ROSCOE, Winnebago, IL
Built 1958 Load: 99.9 t ADT: 28,550
FAI7196 HIGHCROSS
GoodOver: SALINE BRANCH
NE EDGE OF URBANA, Champaign, IL
Built 2022 ADT: 1,800
Cornell Drive
GoodOver: Pedestrian Underpass
0.3 MI N 65TH ST, Cook, IL
Built 2023 ADT: 19,300
Hayes Drive
GoodOver: Pedestrian Underpass
.05 MI W LSD (US 41), Cook, IL
Built 2023 ADT: 14,200
Hayes Drive
GoodOver: Pedestrian Underpass
0.5 MI W LSD (US 41), Cook, IL
Built 2023 ADT: 14,200
TR 187
GoodOver: DRAINAGE DITCH
3.4 MI SW HINDSBORO, Douglas, IL
Built 2023 ADT: 50
I-88
GoodOver: Prairie Path
0.6 M W OF ILL 59, DuPage, IL
Built 2021 ADT: 105,400
TR 87A (OLD CH 54)
GoodOver: FARR CR
5.9 MI E BRADLEY, Kankakee, IL
Built 2020 ADT: 475
CH 6
GoodOver: HORSE CR
2 MI W BONFIELD, Kankakee, IL
Built 2020 ADT: 200
MS-1340 MAYFLOWER
GoodOver: RAVINE
MAYFLOWER S OF SPRNG, Lake, IL
Built 1970 ADT: 550
TR 2
GoodOver: PRAIRIE CREEK
2765 N, 00 3, Livingston, IL
Built 1941 ADT: 25
CH 34 WALKER RD
GoodOver: STREAM
2 MI SW DALTON CITY, Macon, IL
Built 2004 ADT: 100
FAS 552
GoodOver: MOSQUITO CREEK
0.5 MI W ELWIN, Macon, IL
Built 2013 ADT: 1,100
US 40
GoodOver: SILVER CREEK
1.6 M W ILL 4, Madison, IL
Built 1938 ADT: 7,850
TR 281A-Timber Rid
GoodOver: Trib to Wendell Branch
0.6 Mi E of Troy, Madison, IL
Built 2023 ADT: 25
TR 140C (TH-S55)
GoodOver: S BRANCH CROW CR
T29N-R1E-3PM SEC 28, Marshall, IL
Built 2023 ADT: 100
COUNTRY CLUB RD
GoodOver: ICRR
0.5 MI W CH 1, Massac, IL
Built 2023 ADT: 1,700
TRUITT RD
GoodOver: HALLOCK HOLLOW CREEK
E 1/2-24-T11NR8E, Peoria, IL
Built 1990 ADT: 1,650
WEST BABLER ROAD
GoodOver: BRUSH CREEK
2.0 MI SE ORANGEVILL, Stephenson, IL
Built 1957 ADT: 50
E MCCONELL RD
GoodOver: CEDAR CREEK
0.3 mi N of DAKOTA RD, Stephenson, IL
Built 2022 ADT: 700
Showing 14,101-14,150 of 27,743 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
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.