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
FAS-711
UnknownOver: FAI-57
2 MI N FARINA INT, Fayette, IL
Built 1969 ADT: 18,900
FAS-715
UnknownOver: FAI-70
5.25 MI W ST ELMO IN, Fayette, IL
Built 1962 ADT: 23,800
FAS-2720
UnknownOver: FAI-70
ST ELMO INTERCHANGE, Fayette, IL
Built 1962 ADT: 23,900
FAP-750 (ILL-185)
UnknownOver: FAI-57
FARINA INT, Fayette, IL
Built 1969 ADT: 18,900
CH-11(HAGARSTOWN R
UnknownOver: FAI-70 & US-40
2.2MI W. US-40 INT., Fayette, IL
Built 1966 ADT: 1,400
TR-78
UnknownOver: FAI-70 & US 40
3.5 MI E BOND CO LN, Fayette, IL
Built 1965 ADT: 25,800
TR-264
UnknownOver: FAI-70
2 MI W BROWNSTWN INT, Fayette, IL
Built 1964 ADT: 22,700
TR-342
UnknownOver: FAI-70
2 MI E BROWNSTWN INT, Fayette, IL
Built 1962 ADT: 23,800
TR-373
UnknownOver: FAI-70 & US-40
1 MI W. US-40 INT, Fayette, IL
Built 1966 ADT: 25,800
TR-422
UnknownOver: FAI-70
2.75 MI W ST ELMO IN, Fayette, IL
Built 1963 ADT: 23,800
TR-454
UnknownOver: FAI-70
1.25 MI W ST ELMO IN, Fayette, IL
Built 1962 ADT: 23,800
TR-516
UnknownOver: FAI-70
1 MI W EFFINGHAM C L, Fayette, IL
Built 1962 ADT: 23,900
TR-541
UnknownOver: FAI-57
2.5 MI N FARINA INT, Fayette, IL
Built 1969 ADT: 18,900
TR-542
UnknownOver: FAI-57
4.5 MI N FARINA INT, Fayette, IL
Built 1968 ADT: 18,900
FAU-8413 (US-40)
UnknownOver: FAI-70
W. VANDALIA INT., Fayette, IL
Built 1977 ADT: 22,600
FAI 70 WB
UnknownOver: IL 140 & CSXT RR
.8 MI E BOND CO LN, Fayette, IL
Built 2005 ADT: 600
FAI 70 EB
UnknownOver: IL 140 & CSXT RR
.8 E BOND CO LN, Fayette, IL
Built 2005 ADT: 600
FAI-70
UnknownOver: TR-32
1.3 MI E BOND CO LN, Fayette, IL
Built 1965 ADT: 75
C & E I RR
UnknownOver: TR-516
1 MI NE ST ELMO, Fayette, IL
Built 1900 ADT: 100
CONRAIL RR
UnknownOver: TR-516
1 MI NE ST ELMO, Fayette, IL
Built 1900 ADT: 100
PENN CENTRAL RR
UnknownOver: TR-46
2 MI E MULBERY GROVE, Fayette, IL
Built 1900 ADT: 50
ILL 9
UnknownOver: FAI 57
JCT FAI 57 AND ILL 9, Ford, IL
Built 1969 ADT: 17,600
COUNTY ROAD CH 5
UnknownOver: I-57
2.85 MI S OF IL 9, Ford, IL
Built 1968 ADT: 21,100
FAS 359 (was TR72
UnknownOver: FAI 57
2.35 MI N OF ILL 9, Ford, IL
Built 1968 ADT: 17,600
TOWNSHIP ROAD TR 9
UnknownOver: FAI 57
1.34 MI N OF ILL 9, Ford, IL
Built 1968 ADT: 17,600
TOWNSHIP ROAD TR10
UnknownOver: FAI 57
1.80 MI S OF ILL 9, Ford, IL
Built 1968 ADT: 21,100
ABANDONED RR
UnknownOver: FAI RTE 57
.3 MI. S OF W. FRANK, Franklin, IL
Built 1963 ADT: 43,200
CNIC RR
UnknownOver: FAI RTE 57
.4 MI. S W. CITY INT, Franklin, IL
Built 1963 ADT: 37,200
ILL 14
UnknownOver: INTERSTATE 57
IN WEST CITY I57/14, Franklin, IL
Built 1964 ADT: 34,500
ILL 149
UnknownOver: INTERSTATE 57
IN WEST FRANKFORT, Franklin, IL
Built 1963 ADT: 37,200
CH 19 (MARCUM BR)
UnknownOver: FAI RTE 57
2.1 MI. S ILL 154, Franklin, IL
Built 1962 ADT: 34,500
TR 241(FOREST BAPT
UnknownOver: FAI RTE 57
4.8 MI N ILL 149, Franklin, IL
Built 1962 ADT: 37,200
TR 3 (N COUNTY LIN
UnknownOver: FAI RTE 57
JEFFERSON CO LINE, Franklin, IL
Built 1963 ADT: 37,200
TR 75 (FRANKLIN CE
UnknownOver: FAI RTE 57
1 MI S IL 154, Franklin, IL
Built 1961 ADT: 34,500
FAU 9441-PETROFF R
UnknownOver: FAI RTE 57
1.4 MI. N ILL 14, Franklin, IL
Built 1963 ADT: 34,500
FAU 9496
UnknownOver: FAI RTE 57
1.5 MI S OF FAP 873, Franklin, IL
Built 1961 ADT: 43,200
ILL 154
UnknownOver: FAI RTE 57
3.2 MI. S JEFF. CO., Franklin, IL
Built 1962 ADT: 37,200
NORTH RD-W FRANKFO
UnknownOver: INTERSTATE 57
NEAR SCL W FRANKFORT, Franklin, IL
Built 1962 ADT: 43,200
FAS 1877 (YELLOW B
UnknownOver: FAI 57
3.5 MI S BENTON, Franklin, IL
Built 1962 ADT: 37,200
WEBSTER ST-WEST CI
UnknownOver: I-57 & RAMPS
IN WEST CITY, Franklin, IL
Built 1964 ADT: 2,450
DUQUOIN ST - BENTO
UnknownOver: INTERSTATE 57
NEAR NCL BENTON, Franklin, IL
Built 1963 ADT: 34,500
INTERSTATE 57 NB
UnknownOver: 7TH ST
AT NCL W. FRANKFORT, Franklin, IL
Built 2012 ADT: 550
INTERSTATE 57 SB
UnknownOver: 7TH ST
AT NCL W. FRANKFORT, Franklin, IL
Built 2012 ADT: 550
ICG RR
UnknownOver: ILL 14
4 MI W. HAMILTON, Franklin, IL
Built 1900 ADT: 1,650
ICG RR
UnknownOver: FAS 868
5.07 MI S ILL 14, Franklin, IL
Built 1900 ADT: 1,100
ICG RR
UnknownOver: FAS 868
5.15 MI. S. ILL 14, Franklin, IL
Built 1900 ADT: 1,100
B N RR
UnknownOver: TR 11
3 MI NE SESSER, Franklin, IL
Built 1958 ADT: 25
ICG RR
UnknownOver: TR 16
1 MI E PERRY CO., Franklin, IL
Built 1900 ADT: 25
ICG RR
UnknownOver: TR 167
AKIN JUNCTION, Franklin, IL
Built 1900 ADT: 50
ICG RR
UnknownOver: TR 167
AKIN JUNCTION, Franklin, IL
Built 1900 ADT: 50
Showing 1,851-1,900 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 |