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
KEELER AVE
UnknownOver: I-290 - IL 110 & CTA
3 M W US 34, Cook, IL
Built 1953 ADT: 205,000
SPRINGFIELD AVE PE
UnknownOver: I-290 IKE & CTA
2.6 M W US 34, Cook, IL
Built 1957 ADT: 179,800
INDEPENDENCE BLVD
UnknownOver: I-290 - IL 110 & CTA
2.5 M W US 34, Cook, IL
Built 1953 ADT: 179,800
INDEPENDENCE BLVD
UnknownOver: I-290 - IL 110 & CTA
2.5 M W US 34, Cook, IL
Built 1953 ADT: 179,800
CENTRAL PARK AVE
UnknownOver: I-290 - IL 110 & CTA
2.2 M W US 34, Cook, IL
Built 1953 ADT: 199,700
HOMAN AVE
UnknownOver: I-290 - IL 110 & CTA
2 M W US 34, Cook, IL
Built 1953 ADT: 199,700
KEDZIE AVE
UnknownOver: I-290 - IL110 & CTA
1.7 M W US 34, Cook, IL
Built 1954 ADT: 215,400
ALBANY AVE PED OP
UnknownOver: I-290 IKE & CTA
1.5 M W US 34 P4C, Cook, IL
Built 1957 ADT: 115,400
CALIFORNIA AVE
UnknownOver: I-290 - IL 110 & CTA
1.1 M W US 34, Cook, IL
Built 1952 ADT: 115,400
MAPLEWOOD AVE PED
UnknownOver: I-290 IKE & CTA
0.8 M W US 34, Cook, IL
Built 1962 ADT: 175,100
OAKLEY BLVD
UnknownOver: I-290 - IL 110 & CTA
0.5 M W US 34, Cook, IL
Built 1953 ADT: 191,600
LEAVITT ST
UnknownOver: I-290 - IL 110 & CTA
0.4 M W OGDEN AVE, Cook, IL
Built 1953 ADT: 191,600
DAMEN AVE
UnknownOver: I-290 - IL 110 & CTA
0.1 M W US 34, Cook, IL
Built 1952 ADT: 178,300
WESTERN AVE
UnknownOver: I-290 - IL 110 & CTA
0.7 M W US 34, Cook, IL
Built 1953 ADT: 191,600
CC RR
UnknownOver: I-88 E-W TOLL
1.4 M W US 12 P20, Cook, IL
Built 1952 ADT: 102,400
I- 57NB RMP TO 294
UnknownOver: RAMP C & I-294
RAMP B, Cook, IL
Built 2014 ADT: 102,100
I- 57 SB RMP T 294
UnknownOver: I-294 & I-57
RAMP C, Cook, IL
Built 2021 ADT: 102,100
I- 57 NB
UnknownOver: IL 83, 147thST
0.6 M N of I-294, Cook, IL
Built 2021 ADT: 35,100
I- 57 SB
UnknownOver: IL 83,147TH ST
0.6 M N of I-294, Cook, IL
Built 2021 ADT: 24,500
LOOMIS ST
UnknownOver: I-290 - IL 110 & CTA
0.9 M W I-94, Cook, IL
Built 1954 ADT: 189,800
RACINE AVE
UnknownOver: I-290 - IL 110 & CTA
0.5 M W HALSTED ST, Cook, IL
Built 1954 ADT: 162,400
HALSTED ST
UnknownOver: OHIO STREET FEEDER
0.2 M E I-94, Cook, IL
Built 1957 ADT: 80,400
COTTAGE GROVE AVE
UnknownOver: I- 94 BISHOP FORD
1.2 M SE I-57, Cook, IL
Built 1960 ADT: 172,300
ML KING DR
UnknownOver: I- 94 BISHOP FORD
0.7 M SE I-57, Cook, IL
Built 1960 ADT: 172,300
JOE ORR RD
UnknownOver: IL 394
4.0 M S I-80, Cook, IL
Built 1954 ADT: 41,100
OAK PARK AVE
UnknownOver: I-290 & IL 110/CTA/RR
2.5 M W IL 50, Cook, IL
Built 1958 ADT: 172,400
167TH ST
UnknownOver: I- 57
3 M SW I-294, Cook, IL
Built 1968 ADT: 106,800
103RD ST
UnknownOver: I- 57
0.9 M SW IL 1, Cook, IL
Built 1963 ADT: 140,600
CTA
UnknownOver: I-55 STEVENSON
0.9 M E I94 P5C, Cook, IL
Built 1965 ADT: 127,700
RR - METRA
UnknownOver: I- 55 STEVENSON
0.7 M E I-94, Cook, IL
Built 1965 ADT: 86,900
I- 80 EB TO I-294
UnknownOver: I-294
2.3 M W OF IL-1, Cook, IL
Built 1968 ADT: 83,600
IL 53 SB FAP 342
UnknownOver: IL 62 FAP 339
0.3 M N I-90, Cook, IL
Built 1962 ADT: 27,400
EAST RIVER ROAD
UnknownOver: I- 90 JFK & CTA
0.5M W of Cumberland, Cook, IL
Built 2016 ADT: 66,600
93RD ST PED OVERPA
UnknownOver: I- 94 DAN RYAN
.01M NO.OF 93RD, Cook, IL
Built 1973 ADT: 255,000
PEDESTRIAN OVERPAS
UnknownOver: IL 1 HALSTED ST
0.01M N of 195th, Cook, IL
Built 1970 ADT: 17,900
PEDESTRIAN OVERPAS
UnknownOver: GOVERNORS HWY
0.16 M S of US 30, Cook, IL
Built 1900 ADT: 20,000
RR - METRA
UnknownOver: IL 43 & 111TH ST
0.01 M N 111TH ST, Cook, IL
Built 1980 ADT: 20,800
US 12,20,45 SB
UnknownOver: SANTA FE DR ET AL
0.5 M S I-55, Cook, IL
Built 1980 ADT: 5,800
KEDZIE AVE
UnknownOver: RR - CSXT & WIRETON
0.1M S 127TH ST, Cook, IL
Built 1972 ADT: 7,300
FRANKLIN SB TO 55W
UnknownOver: WENTWORTH AVE 2 RMPS
0.8 M E I-90,94, Cook, IL
Built 1964 ADT: 6,700
STONY NB TO 100TH
UnknownOver: STONY ISLAND AVE
0.1 M N 103RD ST, Cook, IL
Built 1972 ADT: 52,500
STONEY ISLAND NB
UnknownOver: 103RD ST
AT 103RD ST, Cook, IL
Built 1970 ADT: 15,400
STONEY ISLAND SB
UnknownOver: 103RD ST
AT 103RD ST, Cook, IL
Built 1970 ADT: 15,400
I-294 OFF RAMP
UnknownOver: I-190 EB JFK
0.6 M W RIVER RD P9, Cook, IL
Built 1960 ADT: 75,600
CENTRAL AVE
UnknownOver: I- 80
0.6 M W OF I-57, Cook, IL
Built 1963 ADT: 90,800
WEST-ELE SERVICE R
UnknownOver: 26TH ST CONNECTION
BT W-E PK LOT, Cook, IL
Built 1900 ADT: 10,150
US 12,20,45 NB
UnknownOver: SANTA FE DR ET AL
0.5 M S I-55, Cook, IL
Built 1975 ADT: 5,800
I- 94 EB RMP T STO
UnknownOver: I- 94 BISHOP FORD
.5M E OF ML KING, Cook, IL
Built 2014 ADT: 132,500
100TH EB TO NB STO
UnknownOver: STONY ISLAND AV
0.6 M E I-94, Cook, IL
Built 2014 ADT: 52,500
RR - CSXT
UnknownOver: 127TH ST
0.35 W KEDZIE AVE, Cook, IL
Built 1983 ADT: 25,500
Showing 951-1,000 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 |