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
TR 318
FairOver: BR SENACHWINE CREEK
SW-12-HALLOCK, Peoria, IL
Built 1990 Load: 32.4 t ADT: 275
KRAUSE RD - TR 316
FairOver: HALLOCK CREEK
N.CTR-24-HALLOCK, Peoria, IL
Built 2011 Load: 32.4 t ADT: 525
CAHILL ROAD
FairOver: TIBER CREEK
CTR-36-T10NR5E, Peoria, IL
Built 1994 Load: 32.4 t ADT: 25
MENDENHALL RD-TR 1
FairOver: BR. HICKORY CREEK
SE-12-T10NR6E, Peoria, IL
Built 1991 Load: 32.4 t ADT: 75
LEGION HALL RD
FairOver: HICKORY RUN
NLINENE1/4-13T10NR6E, Peoria, IL
Built 1992 Load: 32.4 t ADT: 275
SWITZER RD
FairOver: NIXON RUN
CTR.NE1/4-16-T9NR6E, Peoria, IL
Built 1995 Load: 32.4 t ADT: 100
TIBER CREEK RD
FairOver: TIBER CREEK
SE-4-T9NR5E, Peoria, IL
Built 2002 Load: 32.4 t ADT: 200
TIBER CREEK RD
FairOver: WALNUT CREEK
NE-8-T9NR5E, Peoria, IL
Built 2012 Load: 32.4 t ADT: 325
MIDDLE RD (RELOC)
FairOver: E BR LAMARSH CR
NW-16-T8NR8E, Peoria, IL
Built 1982 Load: 32.4 t ADT: 300
NEBRASKA AVE
FairOver: DRY RUN CREEK
NW 5 T8NR8E, Peoria, IL
Built 1966 Load: 32.4 t ADT: 8,100
OLD BIG HOLLOW ROA
FairOver: BIG HOLLOW CR
FRNT RD SW OF US 150, Peoria, IL
Built 1990 Load: 32.4 t ADT: 25
TREASURE ST.
FairOver: KICKAPOO CREEK TRIB
S. OF FAI 474, Peoria, IL
Built 1993 Load: 32.4 t ADT: 575
Wilhelm Rd (CH 31D
FairOver: Trib to Kickapoo Crk
E CTR-25-T10NR7E, Peoria, IL
Built 2012 Load: 32.4 t ADT: 2,650
GALE AVE - FAU 659
FairOver: DRY RUN CREEK
NW-32-T9NR8E, Peoria, IL
Built 1965 Load: 32.4 t ADT: 2,475
CH 3
FairOver: TRIBUTARY HOG CREEK
0.7 MI W FRANKLIN CO, Perry, IL
Built 1976 Load: 32.4 t ADT: 200
TR 332
FairOver: COLLIER CREEK
2 MI NORTH OF CH6, Perry, IL
Built 1977 Load: 32.4 t ADT: 50
TR 305A
FairOver: GALUM CREEK
0.5 MI N JACKSON CO, Perry, IL
Built 1977 Load: 32.4 t ADT: 50
TR 268
FairOver: REESE CREEK
0.8 MI N. FAS 865, Perry, IL
Built 1977 Load: 32.4 t ADT: 400
TR146
FairOver: BRUSH BRANCH
0.5 MI W. OF ILL 127, Perry, IL
Built 1978 Load: 32.4 t ADT: 75
TR 305
FairOver: SLOUGH CREEK
1 MI WEST OF CH 18, Perry, IL
Built 1978 Load: 32.4 t ADT: 75
FAS 1880
FairOver: TRIB LITTLE MUDDY R.
5.8 MI E. OF US 51, Perry, IL
Built 1978 Load: 32.4 t ADT: 275
CH 7
FairOver: REESE CREEK
0.9 MI E FAS 865, Perry, IL
Built 1977 Load: 32.4 t ADT: 1,050
TR 55
FairOver: GALUM CREEK
0.5 MI S OF ILL 13, Perry, IL
Built 1978 Load: 32.4 t ADT: 100
TR 305A
FairOver: PIPESTONE CREEK
0.5 MI N OF JACKSON, Perry, IL
Built 1980 Load: 32.4 t ADT: 50
TR 297B
FairOver: BRUSHY FORK CREEK
1 MI N JACKSON CO, Perry, IL
Built 1980 Load: 32.4 t ADT: 25
TR 76
FairOver: GALUM CREEK
2.5 MI N OF DENMARK, Perry, IL
Built 1980 Load: 32.4 t ADT: 150
CO HWY 8
FairOver: TRIB TO LITTLE MUDDY
W OF FRANKLIN CO, Perry, IL
Built 1981 Load: 32.4 t ADT: 275
CO HWY 3
FairOver: HOG CREEK
0.9 MI W FRANKLIN CO, Perry, IL
Built 1981 Load: 32.4 t ADT: 275
TR 109
FairOver: BONNIE CREEK
1.6 MILES E OF CH 11, Perry, IL
Built 1981 Load: 32.4 t ADT: 125
TR 81
FairOver: GALUM CREEK
1.4 MI E FAS 1834, Perry, IL
Built 1981 Load: 32.4 t ADT: 75
TR 42
FairOver: MUD CREEK
2.4 MI N ILL 13, Perry, IL
Built 1981 Load: 32.4 t ADT: 100
TR 189
FairOver: LITTLE GALUM CREEK
2.8 MI E FAS 1823, Perry, IL
Built 1983 Load: 32.4 t ADT: 150
TR 84
FairOver: BRUSHY FORK CR
2.3 MI S OF FAS 864, Perry, IL
Built 1983 Load: 32.4 t ADT: 200
TR 84
FairOver: PIPESTONE CREEK
2.2 MI S FAS 864, Perry, IL
Built 1983 Load: 32.4 t ADT: 200
TR 153A
FairOver: REESE CREEK
1 MI E OF US 51, Perry, IL
Built 1983 Load: 32.4 t ADT: 100
TR 91
FairOver: GALUM CREEK
0.8 MI E OF CH 12, Perry, IL
Built 1983 Load: 32.4 t ADT: 75
TR 231
FairOver: SPILLTHRU TO GALUM
2.3 MI NO FAS 864, Perry, IL
Built 1984 Load: 32.4 t ADT: 50
TOWNSHIP ROAD 197B
FairOver: GALUM CREEK
2.0 MI SOUTH FAP 837, Perry, IL
Built 1984 Load: 32.4 t ADT: 150
TR 233
FairOver: BEACOUP CREEK
0.6 NE ILL13, Perry, IL
Built 1986 Load: 32.4 t ADT: 200
TR 129
FairOver: LITTLE GALUM CR
ON TR 129 W OF ILL13, Perry, IL
Built 1986 Load: 32.4 t ADT: 175
CH 22-TR1CO RD
FairOver: BRANCH TO BRUSHY CRK
2 MI E OF RTE 4, Perry, IL
Built 1987 Load: 32.4 t ADT: 225
TR 35
FairOver: LITTLE BEAUCOUP
1.1 MI W. OF US 51, Perry, IL
Built 1987 Load: 32.4 t ADT: 50
TR 109
FairOver: BRANCH OF BONNIE CR
3.5 MI N OF CONANT, Perry, IL
Built 1991 Load: 32.4 t ADT: 125
TR 118A
FairOver: WOLF CREEK
3 MI E OF WINKLE, Perry, IL
Built 1988 Load: 32.4 t ADT: 75
CH 23
FairOver: BRUSHY CREEK
NE COR SEC 3-7-4, Perry, IL
Built 1988 Load: 32.4 t ADT: 225
CO HWY 2
FairOver: BLACKSOP CREEK
0.2 MI N OF ILL 4, Perry, IL
Built 1989 Load: 32.4 t ADT: 950
FAS 866-CH 11
FairOver: SLADES BRANCH
1.75 MI E IL 127, Perry, IL
Built 1990 Load: 32.4 t ADT: 250
TR 59
FairOver: BEAUCOUP CREEK
2.5 MI SE TODDS MILL, Perry, IL
Built 1991 Load: 32.4 t ADT: 125
TR 283
FairOver: GALUM CREEK
3 MI ESE DENMARK, Perry, IL
Built 1992 Load: 32.4 t ADT: 350
TR 320
FairOver: HOG CREEK
1 MI S KIMZEY RD, Perry, IL
Built 1994 Load: 32.4 t ADT: 25
Showing 9,201-9,250 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.