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
CTA ELEVATED
UnknownOver: ASHLAND AV
.01M N OF CONGESS PK, Cook, IL
Built 1900 ADT: 21,600
Lincoln Oasis
UnknownOver: I80&I294
.9M W of IL394, Cook, IL
Built 1958 ADT: 147,000
Pedestrian Walkway
UnknownOver: I-90
1 Mi E of Ill. 72, Cook, IL
Built 2018 ADT: 154,300
I-294 NB TO I-88 W
UnknownOver: I-294
0.2M S 22ND P20, Cook, IL
Built 1958 ADT: 134,500
CN&W RR
UnknownOver: Division St.
.1M E of I94, Cook, IL
ADT: 13,400
N&W RR(EAST STR)
UnknownOver: 79TH ST
2.05 M E ILL 50 P6C, Cook, IL
Built 1939 ADT: 11,800
N&W RR(SOUTH STR)
UnknownOver: KEDZIE AVE
S 79TH ST P6C, Cook, IL
Built 1939 ADT: 14,900
LAKE ST CTA&C&NW R
UnknownOver: OAK PARK AVE
0.9 M N I290 P16, Cook, IL
Built 1900 ADT: 10,600
IC RR
UnknownOver: DIXIE HWY-PINE ST
0.5 M N 183RD P24, Cook, IL
Built 1900 ADT: 15,200
GT RR (W)
UnknownOver: VERMONT ST
0.45 M W WESTERN P26, Cook, IL
Built 1900 ADT: 11,000
B&O RR (E)
UnknownOver: VERMONT ST
0.44 M W WESTERN P26, Cook, IL
Built 1900 ADT: 11,000
IC RR SPUR
UnknownOver: 76TH ST
0.05 M W I90 P7C, Cook, IL
Built 1952 ADT: 7,600
PC RR
UnknownOver: 76TH ST
0.03 M E I90 P7C, Cook, IL
Built 1900 ADT: 7,600
PC RR
UnknownOver: 76TH ST
0.04 M E I90 P7C, Cook, IL
Built 1900 ADT: 7,600
CRI&P RR(E)
UnknownOver: 76TH ST
0.59 M W I94 P7C, Cook, IL
Built 1952 ADT: 11,700
CRIE&P RR
UnknownOver: 87TH ST
0.01 M W HALSTED P, Cook, IL
Built 1900 ADT: 26,800
CRIE&P RR
UnknownOver: VINCENNES AVE
W OF HALSTED P, Cook, IL
Built 1900 ADT: 8,550
C & NW RR
UnknownOver: FULLERTON AVE
0.2M.E.OF I-94 P3C, Cook, IL
Built 1900 ADT: 23,300
C&NW RR
UnknownOver: FULLERTON AVE
E CHICAGO RIV P, Cook, IL
Built 1900 ADT: 17,600
C&NW RR
UnknownOver: ILL 58 @ WOLF RD
0.01 M SW US 14 P11, Cook, IL
Built 1900 ADT: 31,700
C&NW RR
UnknownOver: ILL 58 @ WOLF RD
JUST SW US 14 P11, Cook, IL
Built 1900 ADT: 31,700
C&NW RR
UnknownOver: WINNETKA AVE
0.01 E GREEN BAY P12, Cook, IL
Built 1900 ADT: 2,700
C&NW RR
UnknownOver: WINNETKA AVE
0.01 E GREEN BAY P12, Cook, IL
Built 1900 ADT: 2,700
I-90 WB
UnknownOver: Des Plaines River Rd
0.40 MI E of I-294, Cook, IL
Built 1958 ADT: 28,600
I90 WB (NW TOLL)
UnknownOver: US 12,45 (MANNHEIM)
1 M W I294 P11, Cook, IL
Built 1958 ADT: 21,400
I90 EB (NW TOLL)
UnknownOver: ARLINGTON HTS RD
I90 & ARLGTN HTS P5, Cook, IL
Built 1958 ADT: 26,200
I-294 NB
UnknownOver: DEVON AVE
0.5 M N ILL 72 P11, Cook, IL
Built 1958 ADT: 6,450
I-294 NB to I-90 W
UnknownOver: I-294/I-90/Willow Creek
0.25 Mi S of IL-72, Cook, IL
Built 1958 ADT: 168,700
I-294 SB to I-90 E
UnknownOver: I-294/I-90/Willow Creek
0.25 Mi S of IL-72, Cook, IL
Built 1958 ADT: 91,500
CNW RR
UnknownOver: FOSTER AVE
JUST E.OF KENNEDY XY, Cook, IL
Built 1900 ADT: 24,200
I-294 CD RAMP
UnknownOver: TOUHY AVE.
1.3 MI N I-90, Cook, IL
Built 2009 ADT: 27,600
I-294 SB to I-190
UnknownOver: I-90 EB to I-294 SB
0.15 Mi S of I-90, Cook, IL
Built 1958 ADT: 9,800
BALMORAL
UnknownOver: I 294
1.2 M N ILL 19 P9, Cook, IL
Built 1958 ADT: 176,300
CTA RR
UnknownOver: CENTRAL AV
.07M SO OF I290, Cook, IL
Built 1900 ADT: 16,500
LAKE COOK RD
UnknownOver: I 94
I94&LAKE COOK RD P14, Cook, IL
Built 1958 ADT: 46,000
CSX RR
UnknownOver: CENTRAL AV
.08M SO OF I90, Cook, IL
Built 1900 ADT: 16,500
PED OVERPASS
UnknownOver: I-294 (TRI-ST TOLL)
0.4 M S US 34 P10, Cook, IL
Built 1958 ADT: 173,800
I-294 CD RAMP
UnknownOver: DESPLAINES RIVER RD
1.2 MI N I-90, Cook, IL
Built 2009 ADT: 19,900
I-294 NB
UnknownOver: EB IL-38 TO EB.I-290
0.2 M N ILL 38 P20, Cook, IL
Built 1958 ADT: 24,000
I-294 SB
UnknownOver: EB IL-38 TO EB I-290
0.2 M N ILL 38 P20, Cook, IL
Built 1958 ADT: 24,000
I-294 NB
UnknownOver: I-94 EDENS SPUR
.1 MI E I-294, Cook, IL
Built 2009 ADT: 46,000
171ST ST
UnknownOver: I-80/294
2.0 M W OF IL-1, Cook, IL
Built 1962 ADT: 84,800
I-57 (SB)
UnknownOver: FAP 824 (US-45)
NEOGA INTERCHANGE, Cumberland, IL
Built 1963 ADT: 2,750
I-57 (NB)
UnknownOver: FAP 824(US 45)
NEOGA INTERCHANGE, Cumberland, IL
Built 1963 ADT: 2,750
US-40 (FAS-1707)
UnknownOver: Mill Road (MS- 5990)
GREENUP, Cumberland, IL
Built 1950 ADT: 200
US 40(FAS 1707)
UnknownOver: LINCOLN ST(MS 1230)
GREENUP, Cumberland, IL
Built 1950 ADT: 400
FAS 656
UnknownOver: I-57
.25 MI E OF NEOGA, Cumberland, IL
Built 1963 ADT: 18,900
FAS 676(CH 17)
UnknownOver: I-70
4 MI E GREENUP, Cumberland, IL
Built 1969 ADT: 23,500
FAS 701(CH 6)
UnknownOver: I-70
N EDGE OF JEWETT, Cumberland, IL
Built 1968 ADT: 23,100
IL 130 (FAP 116)
UnknownOver: I-70
GREENUP INT, Cumberland, IL
Built 1969 ADT: 23,500
Showing 1,501-1,550 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 |