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
The 606
UnknownOver: RICHMOND ST
1800 N 2930 W, Cook, IL
Built 1915
The 606
UnknownOver: FRANCISCO AVE
1800 N 2900 W, Cook, IL
Built 1915
The 606
UnknownOver: MOZART STREET
1800 N 2830 W, Cook, IL
Built 1915
The 606
UnknownOver: CALIFORNIA AVE.
1800 N 2800 W, Cook, IL
Built 1915 ADT: 10,500
The 606
UnknownOver: FAIRFIELD AVENUE
1800 N 2730 W, Cook, IL
Built 1915
The 606
UnknownOver: WASHTENAW AVENUE
1800 N 2700 W, Cook, IL
Built 1915
The 606
UnknownOver: TALMAN AVENUE
1800 N 2630 W, Cook, IL
Built 1915
The 606
UnknownOver: ROCKWELL STREET
1800 N 2600 W, Cook, IL
Built 1915 ADT: 1,350
The 606
UnknownOver: MAPLEWOOD AVENUE
1800 N 2530 W, Cook, IL
Built 1915 ADT: 275
The 606
UnknownOver: CAMPBELL AVENUE
1800 N 2500 W, Cook, IL
Built 1915 ADT: 1,075
The 606
UnknownOver: ARTESIAN AVE
1800 N 2430 W, Cook, IL
Built 1915
The 606
UnknownOver: WESTERN AVENUE
1800 N 2400 W, Cook, IL
Built 1915 ADT: 26,300
The 606
UnknownOver: WINNEBAGO AVENUE
1800 N 2300 W, Cook, IL
Built 1915 ADT: 775
The 606
UnknownOver: MILWAUKEE AV
1800 N 2220 W, Cook, IL
Built 1915 ADT: 9,700
The 606
UnknownOver: LEAVITT ST
1800N 2200W, Cook, IL
Built 1915 ADT: 1,350
The 606
UnknownOver: HOYNE AV
1800N 2100W, Cook, IL
Built 1915 ADT: 875
The 606
UnknownOver: DAMEN AV
1800N 2000W, Cook, IL
Built 1915 ADT: 12,700
The 606
UnknownOver: WINCHESTER AV
1800N 1930W, Cook, IL
Built 1915 ADT: 825
The 606
UnknownOver: WOLCOTT AV
1800N 1900W, Cook, IL
Built 1915 ADT: 875
The 606
UnknownOver: HONORE ST
1800N 1830W, Cook, IL
Built 1915 ADT: 1,100
The 606
UnknownOver: WOOD STREET
1800N 1800W, Cook, IL
Built 1915 ADT: 2,300
The 606
UnknownOver: HERMITAGE AVENUE
1800N 1730W, Cook, IL
Built 1915 ADT: 1,250
The 606
UnknownOver: PAULINA STREET
1800N 1700W, Cook, IL
Built 1915 ADT: 1,500
The 606
UnknownOver: MARSHFIELD AVENUE
1800 N 1630 W, Cook, IL
Built 1915 ADT: 800
I- 90EB RMP 2 IL17
UnknownOver: I-190
.5 M E OF RIVER RD, Cook, IL
Built 2018 ADT: 57,200
I-90 SKYWAY
UnknownOver: COLFAX AVE
AT 90TH P8C, Cook, IL
Built 1958 ADT: 6,700
B&OCT RR
UnknownOver: WESTN.AV.BLVD.&39ST.
AT PERSHING P5C, Cook, IL
Built 1900 ADT: 22,300
NYC RR
UnknownOver: GARFIELD BLVD
W OF STATE P7C, Cook, IL
Built 1900 ADT: 22,900
PC RR
UnknownOver: GARFIELD BLVD
0.5 M W STATE P7C, Cook, IL
Built 1900 ADT: 22,900
C&WI RR
UnknownOver: GARFIELD BLVD
0.5 M W STATE P7C, Cook, IL
Built 1900 ADT: 22,900
C&WI RR
UnknownOver: GARFIELD BLVD
0.5 M W STATE P7C, Cook, IL
Built 1900 ADT: 22,900
C&WI RR
UnknownOver: GARFIELD BLVD
0.5 M W STATE P7C, Cook, IL
Built 1900 ADT: 22,900
PC RR
UnknownOver: GARFIELD BLVD
E OF WESTERN P7C, Cook, IL
Built 1900 ADT: 22,400
PC RR
UnknownOver: GARFIELD BLVD
E OF WESTERN P7C, Cook, IL
Built 1900 ADT: 22,400
PC RR
UnknownOver: GARFIELD BLVD
E OF WESTERN P7C, Cook, IL
Built 1900 ADT: 22,400
CTA
UnknownOver: 63RD ST
E OF WESTERN P7C, Cook, IL
Built 1900 ADT: 11,300
LAKE SHORE DR
UnknownOver: Lower LSD & Land
402 N.AND 484 E., Cook, IL
Built 1986 ADT: 13,650
LAKE SHORE DR
UnknownOver: OGDEN SLIP
450 N & 484 E, Cook, IL
Built 1986 ADT: 13,650
LAKE SHORE DR
UnknownOver: GRAND & ILLINOIS STS
530N.& 484E., Cook, IL
Built 1986 ADT: 12,400
DEARBORN ST
UnknownOver: Carrol Ave
36W&330N TO 400N, Cook, IL
Built 1963 ADT: 5,000
18TH STREET
UnknownOver: RR. LUMBER ST & LOT
1800S 300W TO 500W, Cook, IL
Built 1967 ADT: 1,000
MICHIGAN AVE
UnknownOver: VARIOUS CITY STS
100E 365N TO 530N, Cook, IL
Built 1920 ADT: 17,100
MICHIGAN AVE
UnknownOver: VARIOUS CITY STREETS
100E.& 340N.TO 200N., Cook, IL
Built 1921 ADT: 19,500
FAU-2907 State St
UnknownOver: VARIOUS CITY STRTS
0E/W & 400N.TO 300N., Cook, IL
Built 1949 ADT: 5,000
WABASH AVE
UnknownOver: VARIOUS CITY STRTS
44E 400N TO 500N, Cook, IL
Built 1930 ADT: 8,150
WESTERN BLVD
UnknownOver: S WESTERN AVE
3300S 2400W, Cook, IL
Built 1940 ADT: 21,200
BEAUBIEN
UnknownOver: LOWER LEVEL BEAUBIEN
120E & 150N to 186N, Cook, IL
Built 1956 ADT: 375
LAKE STREET-EAST
UnknownOver: Metra,Parking&Beaubi
200N 125E TO 154E, Cook, IL
Built 1956 ADT: 375
STETSON AVENUE
UnknownOver: LOWER LEVEL STETSON
154E 150N TO 200N, Cook, IL
Built 1956 ADT: 3,100
WACKER DRIVE
UnknownOver: LOWER LVL WACKER DR
MICHIGAN TO RANDOLPH, Cook, IL
Built 1926 ADT: 19,500
Showing 1,151-1,200 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 |