Total Bridges
27,743
Public highway bridges in Illinois
State profile · Near national median SD
Illinois bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Illinois — drawn straight from the FHWA National Bridge Inventory.
- 27,743
- Public bridges
- 41.2%
- Good condition
- 7.9%
- Poor condition
- 7.9%
- Structurally deficient
Good Condition
41.2%
11,426 bridges rated 7-9
-8.8pp vs 50% benchmark
Poor Condition
7.9%
2,186 bridges rated 0-4
Structurally Deficient
7.9%
2,186 bridges flagged for repair priority
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 — Structurally deficient share 26.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Illinois (FHWA NBI)
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 on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Illinois on the same metric.
44
Rhode Island
7.69% top marginal rate
31
Nebraska
7.73% top marginal rate
17
Illinois
7.88% top marginal rate
25
Massachusetts
7.96% top marginal rate
29
Missouri
8.53% top marginal rate
Bridges Needing Most Attention in Illinois
Six lowest-condition bridges in Illinois, ranked by composite NBI rating. Each is inspected at least every 24 months.
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
Structurally DeficientOver: WILSON CREEK
NE-35-T3NR2E, Fulton, IL
Built 1935 Load: 1.3 t ADT: 10
TR 10-B
Structurally DeficientOver: KING CREEK
W EDGE OF MINERAL, Bureau, IL
Built 1899 Load: 1.6 t ADT: 10
TR-6
Structurally DeficientOver: DRAINAGE DITCH
3.5 MI NE DIETERICH, Effingham, IL
Built 1909 Load: 1.6 t ADT: 25
TR208K(TWIN BRIDGE
Structurally DeficientOver: BIG CREEK
NE EDGE MT ZION, Macon, IL
Built 1967 Load: 1.9 t ADT: 375
All Bridges in Illinois
IL 72 WB (HIGGINS
UnknownOver: I- 90 EB TO IL 43
AT JFK XWAY, Cook, IL
Built 1983 ADT: 4,400
RR - CN & METRA
UnknownOver: US 30 (INCOLN HWY)
1.2 M W OF WESTERN, Cook, IL
Built 1986 ADT: 27,500
IL 43 (HARLEM AVE
UnknownOver: RR - BRC & FRONTAGE
0.5 M S OF 63RD ST, Cook, IL
Built 1985 ADT: 600
E FRONT RD
UnknownOver: PALATINE ROAD
1.3 M W OF US 45, Cook, IL
Built 1963 ADT: 32,200
W FRONT RD
UnknownOver: PALATINE ROAD
1.3 M W OF US 45, Cook, IL
Built 1963 ADT: 32,200
TAYLOR ST TO NB I-
UnknownOver: CD TO NB I-94&I-290
0.01 M N TAYLOR ST, Cook, IL
Built 1988 ADT: 54,200
SERVICE RD NE
UnknownOver: IL 171 (ARCHER AVE)
0.1 M S OF 63RD ST, Cook, IL
Built 1991 ADT: 28,400
SERVICE RD SW
UnknownOver: IL 171 (ARCHER AVE)
0.05 M S OF 63RD ST, Cook, IL
Built 1987 ADT: 28,400
PEDESTRIANOVERPASS
UnknownOver: I-57
AT 108TH ST, Cook, IL
Built 1984 ADT: 140,600
I- 90,94 REV TO OH
UnknownOver: I- 90,94 NWB JFK
JUST SW OF OGDEN AVE, Cook, IL
Built 1992 ADT: 199,900
IL 83 (CAL-SAG RD
UnknownOver: US 45 MANNHEIM RD
0.2 M S OF 111TH ST, Cook, IL
Built 1989 ADT: 33,800
IL 390 WB EOH
UnknownOver: MITCHELL BLVD
0.6 M W ROSELLE RD, Cook, IL
Built 1992 ADT: 2,500
IL 390 EB EOH
UnknownOver: MITCHELL BLVD
0.6 M W ROSELLE RD, Cook, IL
Built 1992 ADT: 2,500
ROSELLE RD
UnknownOver: IL 390 ELGIN-OHARE
3.8 M W I-290, Cook, IL
Built 1991 ADT: 54,300
PLUM GROVE RD
UnknownOver: IL 390 ELGIN-OHARE
1.4 M W I-290, Cook, IL
Built 1991 ADT: 47,400
IL 390 EB EOH
UnknownOver: WRIGHT BLVD
1.1 M W ROSELLE RD, Cook, IL
Built 1992 ADT: 5,700
IL 390 WB EOH
UnknownOver: WRIGHT BLVD
1.1 M W ROSELLE RD, Cook, IL
Built 1992 ADT: 5,700
IL 390 EB EOH
UnknownOver: RODENBERG RD
1.5 M W ROSELLE RD, Cook, IL
Built 1992 ADT: 5,450
IL 390 WB EOH
UnknownOver: RODENBERG RD
1.5 M W ROSELLE RD, Cook, IL
Built 1992 ADT: 5,450
IL 21 (MILWAUKEE)
UnknownOver: US 14 (DEMPSTER)
1.2 M S E OF IL 58, Cook, IL
Built 1990 ADT: 39,600
OHIO WB TO I94EB
UnknownOver: OHIOWB TO I94WB
JUST SW OF ODGEN AVE, Cook, IL
Built 1991 ADT: 17,600
I- 94 EB EDENS
UnknownOver: I- 90 JFK & CTA
JUST W OF WILSON, Cook, IL
Built 1992 ADT: 138,300
IL 390 WB TO SB GA
UnknownOver: SPRINGINGSGUTH RD
RAMP WB EOH TO SB, Cook, IL
Built 1994 ADT: 5,300
RR - CN
UnknownOver: I-190 JFK
.1M E OF US12,45, Cook, IL
Built 2004 ADT: 114,300
IL 390 EB EOH
UnknownOver: SPRINGINGSGUTH RD
EAST OF WISE RD, Cook, IL
Built 1992 ADT: 5,300
IL 390 WB EOH
UnknownOver: SPRINGINGSGUTH RD
EAST OF WISE RD, Cook, IL
Built 1992 ADT: 5,300
IL 390 WB TO SB GA
UnknownOver: IL 390 EOH & RAMP
EAST OF WISE RD, Cook, IL
Built 1992 ADT: 900
GARY NB TO IL 390
UnknownOver: IL 390 EB 2 SPRNGGTH
EAST OF WISE RD, Cook, IL
Built 1992 ADT: 900
IL 390 EB EOH
UnknownOver: IL 19 (IRVING PK)
SOUTH OF WISE RD, Cook, IL
Built 1992 ADT: 13,300
IL 390 WB EOH
UnknownOver: IL 19 (IRVING PK)
SOUTH OF WISE RD, Cook, IL
Built 1992 ADT: 13,300
WILSON RMP TO EB I
UnknownOver: I- 90 JFK & CTA
SOUTH END OF EDENS, Cook, IL
Built 1992 ADT: 138,300
I-290 NB RAMPS@BFD
UnknownOver: I-290 MAINT DRIVE
0.79 M N OF DEVON AV, Cook, IL
Built 1990 ADT: 225
IL 59 (SUTTON RD)
UnknownOver: I- 90 ADAMS TOLL
1.5 M N IL 58, Cook, IL
Built 1991 ADT: 141,600
130TH ST
UnknownOver: I- 94 BISHOP FORD
5.5 M SE OF I-57, Cook, IL
Built 1991 ADT: 166,500
WOLF RD
UnknownOver: I-294 TRI STATE TOLL
2.2 M N IL 64, Cook, IL
Built 1992 ADT: 173,100
47TH ST
UnknownOver: I-294 TRI STATE TOLL
2.2 M W OF US 45, Cook, IL
Built 1992 ADT: 173,800
55TH ST
UnknownOver: I-294 TRI STATE TOLL
2.1 M W OF US 45, Cook, IL
Built 1992 ADT: 173,800
127TH STREET
UnknownOver: I 355
1.5M N OF IL171, Cook, IL
Built 2007 ADT: 82,300
RR - CSXT
UnknownOver: 111TH ST
0.34 M E OF CENTRAL, Cook, IL
Built 1997 ADT: 29,900
86TH AVENUE
UnknownOver: IL 7 (W HWY)
1 M SW IL 83, Cook, IL
Built 1994 ADT: 15,800
123RD ST
UnknownOver: IL 7 (SW HWY)
0.9 M SW IL 83, Cook, IL
Built 1996 ADT: 15,800
STATE ST TURNAROUN
UnknownOver: I- 55 STEVENSON
0.9 M EAST OF I-94, Cook, IL
Built 1994 ADT: 127,700
BEVERLY ROAD
UnknownOver: I-90
1.5MI W IL-59, Cook, IL
Built 1995 ADT: 133,400
US 12,20,45 LAGRAN
UnknownOver: I- 55 STEVENSON
5 M SW IL 43, Cook, IL
Built 1995 ADT: 118,400
PEDESTRIAN BRIDGE
UnknownOver: IL 7 SOUTHWEST HWY
0.3 M N of 131st, Cook, IL
ADT: 15,800
I-294 RAMPS I-55
UnknownOver: I- 55 STEVENSON
1.8 M W US 45 P10, Cook, IL
Built 2002 ADT: 135,300
I-294 SB
UnknownOver: US-45,RR YDS.& F.AVE
1 M S ILL 19 P9, Cook, IL
Built 1993 ADT: 44,800
I294 COLL-DISTR
UnknownOver: I290
I290 AT I294 P20, Cook, IL
Built 1992 ADT: 89,800
I294 COLL-DISTR
UnknownOver: BUTTERFIELD R ILL 56
I294 & ILL 56 P20, Cook, IL
Built 1992 ADT: 13,800
I294 COLL-DISTR
UnknownOver: I88
0.5 M N ILL 38 P20, Cook, IL
Built 1993 ADT: 102,400
Showing 1,001-1,050 of 27,743 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |