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
I-74 EB & RAMP 21.
UnknownOver: LYNCH RD.
E OF DANVILLE, Vermilion, IL
Built 1961 ADT: 3,900
BOWMAN AVE(FAU 704
UnknownOver: TEXAS AVE
E OF DANVILLE, Vermilion, IL
Built 1964 ADT: 250
IL.1/US 150(FAP 33
UnknownOver: I-74 & CD16.23/16.33
S OF DANVILLE, Vermilion, IL
Built 1965 ADT: 27,200
IL 1 US 150 (FAP 3
UnknownOver: 14TH ST(FAU 7010)
AT S EDGE DANVILLE, Vermilion, IL
Built 1966 ADT: 1,500
Union Pacific RR
UnknownOver: IL 9(FAP 697)
3 MI E OF RANKIN, Vermilion, IL
Built 1963 ADT: 1,950
US 150(FAU 7052)
UnknownOver: I-74
W OF DANVILLE, Vermilion, IL
Built 1960 ADT: 21,200
CNRL RR
UnknownOver: US 150(FAP 729)
W EDGE DANVILLE, Vermilion, IL
Built 1950 ADT: 12,500
US 150(FAP 729)
UnknownOver: N FORK VERMILION RIV
IN DANVILLE, Vermilion, IL
Built 1950 ADT: 50
CSX RR
UnknownOver: US 136(FAP 729)
0.5 MI E OF DANVILLE, Vermilion, IL
Built 1934 ADT: 7,300
"A" AVE (MS 6480)
UnknownOver: US 150(FAP 729)
IN DANVILLE, Vermilion, IL
Built 1950 ADT: 12,500
UP RR
UnknownOver: US 136(FAP 709)
.75 MI W ILL 49, Vermilion, IL
Built 1935 ADT: 1,550
CSX RR
UnknownOver: IL 9(FAP 711)
S CORP LIMITS ALVIN, Vermilion, IL
Built 1934 ADT: 1,350
FAS 331
UnknownOver: I-74
0.5 MI N OF OAKWOOD, Vermilion, IL
Built 1960 ADT: 25,000
FAU 7043(PERRYSVIL
UnknownOver: I-74&RMPS17.79/17.87
IN DANVILLE, Vermilion, IL
Built 1962 ADT: 3,400
Batestown (FAU 700
UnknownOver: FAI 74
W OF DANVILLE, Vermilion, IL
Built 1962 ADT: 21,200
CH 11
UnknownOver: I-74
N OF MUNCIE, Vermilion, IL
Built 1959 ADT: 25,200
TR 206
UnknownOver: I-74
1.5 MI NE OF OAKWOOD, Vermilion, IL
Built 1960 ADT: 25,000
TR 250
UnknownOver: I-74
S OF HILLERY, Vermilion, IL
Built 1962 ADT: 21,200
TR 251 B
UnknownOver: I-74
1 MI W OF US 150, Vermilion, IL
Built 1960 ADT: 25,000
TR 300
UnknownOver: I-74
W OF TILTON, Vermilion, IL
Built 1962 ADT: 21,200
FAU 7019(TR 354)
UnknownOver: I-74
S OF DANVILLE, Vermilion, IL
Built 1962 ADT: 27,200
TR 8 A
UnknownOver: I-74
1 MI W OF ILL 49, Vermilion, IL
Built 1959 ADT: 24,400
TR 102
UnknownOver: I-74
2.1 MI NE OF MUNCIE, Vermilion, IL
Built 1959 ADT: 25,200
Norfolk Southern R
UnknownOver: I-74&CD 16.23/16.33
IN TILTON, Vermilion, IL
Built 1964 ADT: 2,300
PEDESTRIAN BRIDGE
UnknownOver: 74,CD16.23/.33,2RAMP
S OF DANVILLE, Vermilion, IL
Built 1964 ADT: 3,700
CH 28 (BREWER RD)
UnknownOver: I-74
SE OF DANVILLE, Vermilion, IL
Built 1962 ADT: 18,300
TR 34 B
UnknownOver: I-74
N OF FITHIAN, Vermilion, IL
Built 1959 ADT: 25,200
KBS RR
UnknownOver: CH 34(VOORHEES)
IN DANVILLE, Vermilion, IL
Built 1963 ADT: 3,300
FAU 7045(BOWMAN AV
UnknownOver: I-74 & RAMP 18.32
S OF DANVILLE, Vermilion, IL
Built 1993 ADT: 650
IL 49 (FAP 840)
UnknownOver: I-74
NW OF FITHIAN, Vermilion, IL
Built 2008 ADT: 25,200
FAU 7009(CH 7)
UnknownOver: I-74&CD16.23/16.33
IN TILTON, Vermilion, IL
Built 2022 ADT: 2,500
KBS RR
UnknownOver: POLAND RD(FAS 501)
3.0 MI NE DANVILLE, Vermilion, IL
Built 1900 ADT: 475
N&S & KDS RR
UnknownOver: FAU 6998
E DANVILLE WINTER AV, Vermilion, IL
Built 1900 ADT: 3,700
CSX & N&S RR
UnknownOver: FAIRCHILD(FAU 7002)
IN DANVILLE, Vermilion, IL
Built 1915 ADT: 5,250
N&S RR
UnknownOver: FAIRCHILD(FAU 7002)
IN DANVILLE, Vermilion, IL
Built 1915 ADT: 5,250
CNRL RR
UnknownOver: FAIRCHILD(FAU 7002)
AT DANVILLE HIGH S, Vermilion, IL
Built 1905 ADT: 5,250
PEDESTRIAN BRIDGE
UnknownOver: US 150(FAP 729)
0.75 MI W OF IL 1, Vermilion, IL
Built 1973 ADT: 12,500
"G" ST(FAU 7026)
UnknownOver: 8TH ST(MS 4070A)
SW SIDE OF TILTON, Vermilion, IL
Built 1980 ADT: 50
CNRL RR
UnknownOver: SEMINARY (FAU 7004)
DANVILLE, Vermilion, IL
Built 1900 ADT: 3,450
FAU 7010(14TH ST)
UnknownOver: MS# 8122 (NO NAME)
14TH OVER MAYFIELD, Vermilion, IL
Built 2007 ADT: 25
CSX RR
UnknownOver: WINTER AVENUE
2.2 MI SW AIRPORT, Vermilion, IL
Built 2009 ADT: 1,000
UP RR
UnknownOver: TR 5 C
3.5 MI E OF RANKIN, Vermilion, IL
Built 1900 ADT: 75
KBSR RR
UnknownOver: TR 181 A
.5 MI NE VERM AIRPOR, Vermilion, IL
Built 1900 ADT: 50
CSX RR
UnknownOver: FAS 501(POLAND RD)
N EDGE OF DANVILLE, Vermilion, IL
Built 1925 ADT: 1,250
CNRL RR
UnknownOver: TR 269 C
S END KICKAPOO, Vermilion, IL
Built 1900 ADT: 50
CNRL RR
UnknownOver: FAU 7012(SPELTER AV)
.5 MI N WESTVILLE, Vermilion, IL
Built 1905 ADT: 675
CNRL RR
UnknownOver: ENGLISH ST(MS 1850)
SE COR SPRHILL CEM, Vermilion, IL
Built 1900 ADT: 225
CAMERON RD
UnknownOver: US 34
2.25M N OF CAMERON, Warren, IL
Built 1979 ADT: 8,950
TR 232 (165th St)
UnknownOver: US 34 & Cedar Creek
2.5M SW OF GALESBURG, Warren, IL
Built 1979 ADT: 8,950
US 34
UnknownOver: US 67
SW EDGE OF MONMOUTH, Warren, IL
Built 1992 ADT: 4,500
Showing 3,651-3,700 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 |