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-70 (EB)
FairOver: BIG CREEK
1 MI E ILL 1, Clark, IL
Built 1968 Load: 47.0 t ADT: 12,450
US 12,20 (95TH ST)
FairOver: MELVINA DITCH
0.7 M E IL 43, Cook, IL
Built 1969 Load: 47.0 t ADT: 28,500
CHURCH ST
FairOver: N SHORE CHANNEL
EVANSTON P6, Cook, IL
Built 1909 Load: 47.0 t ADT: 7,600
TR-251
FairOver: BEAR CREEK
2 MI N LAKE VANDALIA, Fayette, IL
Built 1940 Load: 47.0 t ADT: 20
ILL 54
FairOver: DRAIN DITCH
0.34 MI NE OF IL 115, Ford, IL
Built 1948 Load: 47.0 t ADT: 1,000
CLARENCE RD FAS 5
FairOver: UNKNOWN STREAM
1.34 MI N OF ILL 9, Ford, IL
Built 1931 Load: 47.0 t ADT: 75
CH 22
FairOver: MUD CR.
4.5 MI. NE. ATKINSON, Henry, IL
Built 1961 Load: 47.0 t ADT: 150
ILL 50 FAP 840
FairOver: KANKAKEE RIV.
1 M N JT US 45 & 52, Kankakee, IL
Built 1953 Load: 47.0 t ADT: 12,200
I-57 NB
FairOver: CN RAILROAD
0.3 MI NW OF IL 50, Kankakee, IL
Built 2012 Load: 47.0 t ADT: 13,700
CH 2 FAS 1259
FairOver: AUX SABLE CREEK
2.8S,4.25E YORKVILLE, Kendall, IL
Built 2001 Load: 47.0 t ADT: 2,850
MOUND RD(FAU 7359)
FairOver: SPRING CREEK
EAST MOUND ROAD, Macon, IL
Built 1964 Load: 47.0 t ADT: 8,100
IL 156
FairOver: PRAIRIE DULONG CR
2 MI W OF HECKER, Monroe, IL
Built 1994 Load: 47.0 t ADT: 2,050
WALSHVILE-SORENTO
FairOver: GROVE BRANCH
1.5 SO WALSHVILLE, Montgomery, IL
Built 1942 Load: 47.0 t ADT: 50
ILL 78
FairOver: KICKAPOO CREEK TRIB
2.1 M N OF ILL 116, Peoria, IL
Built 1990 Load: 47.0 t ADT: 1,700
I-72 (EB)
FairOver: WILDCAT CREEK
2 MI W MONTICELLO, Piatt, IL
Built 1975 Load: 47.0 t ADT: 5,700
I-72 (WB)
FairOver: WILDCAT CREEK
2 MI W MONTICELLO, Piatt, IL
Built 1975 Load: 47.0 t ADT: 5,700
IL 101
FairOver: HONEY BROOK
2.4M E IL 99, Schuyler, IL
Built 1929 Load: 47.0 t ADT: 300
NB I-155
FairOver: TP&W RR (004909R)
.3 MI N OF ILL 98, Tazewell, IL
Built 1988 Load: 47.0 t ADT: 11,400
SB I-155
FairOver: TP&W RR (004909R)
.3 MI N OF ILL 98, Tazewell, IL
Built 1989 Load: 47.0 t ADT: 11,400
ILL 9
FairOver: MACKINAW RIV TRIB
.5 MI W OF MACKINAW, Tazewell, IL
Built 2011 Load: 47.0 t ADT: 2,700
PARKWAY DR-FAU 671
FairOver: STREAM
0.03 MI S. OF ILL 98, Tazewell, IL
Built 1973 Load: 47.0 t ADT: 6,850
ILL 177
FairOver: PLUM CREEK
1 MI W OF I-64, Washington, IL
Built 1936 Load: 47.0 t ADT: 3,150
IL 102
FairOver: FORKED CREEKOVERFLO
4.6 M S OF IL 53, Will, IL
Built 1972 Load: 47.0 t ADT: 4,100
IL 113
FairOver: CLAY POOL CREEK
0.1 M W OF I-55, Will, IL
Built 1993 Load: 47.0 t ADT: 11,100
SBI 13 (UNMARKED)
FairOver: PIGEON CREEK
1.1 MI W OF ILL 148, Williamson, IL
Built 1920 Load: 47.0 t ADT: 1,550
IL 251 FAS 1360
FairOver: PANTHER CREEK
3.4 MI S OF IL 116, Woodford, IL
Built 2009 Load: 47.0 t ADT: 1,250
I 39/US 51
FairOver: UNNAMED STREAM
1.25 MI S OF US 24, Woodford, IL
Built 1992 Load: 47.0 t ADT: 18,700
IL 50 (CICERO AVE
FairOver: N BR CHICAGO RIVER
0.4 M S US 14, Cook, IL
Built 2007 Load: 47.3 t ADT: 13,800
I-90 WB Jayne Adam
FairOver: U.P. RR
2.1 Mi E. Ill Rte 83, Cook, IL
Built 2015 Load: 47.3 t ADT: 160,700
RIMSNIDER RD
FairOver: LITTLE ROCK CREEK
1010N 1400E, DeKalb, IL
Built 1960 Load: 47.3 t ADT: 125
HIGH LAKE ROAD
FairOver: W BRANCH DU PAGE RV
0.2 MI W WINFIELD RD, DuPage, IL
Built 1946 Load: 47.3 t ADT: 4,450
FAS 1751(US-40)
FairOver: HURRICANE CREEK
2.6 MI E BOND CO LN, Fayette, IL
Built 1943 Load: 47.3 t ADT: 1,400
I-80EB Entrance Ra
FairOver: COLLINS RUN
SE QUAD I-80/BRISBIN, Grundy, IL
Built 2011 Load: 47.3 t ADT: 1,050
CO HWY 24
FairOver: RILEY'S CREEK
9.0 MI NE HAMILTON, Hancock, IL
Built 2001 Load: 47.3 t ADT: 850
US 6 FAP 623
FairOver: LITTLE VERMILION R
2.15 MI E OF IL 251, LaSalle, IL
Built 1966 Load: 47.3 t ADT: 9,050
IL 23 FAP 68
FairOver: SHORT POINT CR
7.31 MI S OF IL 17, Livingston, IL
Built 2011 Load: 47.3 t ADT: 1,550
FAS 569
FairOver: KICKAPOO CK
3 MI W LINCOLN, Logan, IL
Built 1977 Load: 47.3 t ADT: 1,050
FAS-1788
FairOver: BRANCH DUMS CREEK
1.7 MI NE BRUBAKER, Marion, IL
Built 1961 Load: 47.3 t ADT: 300
ILL 61
FairOver: BNSF RR (072826L)
SOUTH OF COLMAR, McDonough, IL
Built 1954 Load: 47.3 t ADT: 950
US 67
FairOver: GRINDSTONE CR
N EDGE OF INDUSTRY, McDonough, IL
Built 2007 Load: 47.3 t ADT: 2,300
GREEN STREET
FairOver: BOONE CREEK
.1 M S 120.2 M E 31, McHenry, IL
Built 1948 Load: 47.3 t ADT: 4,650
US 36(FAP 323)
FairOver: W OKAW RIVER TRIB
6 MI W OF HAMMOND, Moultrie, IL
Built 1986 Load: 47.3 t ADT: 2,050
ILL 29
FairOver: SENECHWINE CR
N EDGE CHILLICOTHE, Peoria, IL
Built 1939 Load: 47.3 t ADT: 6,400
CH 4 - FAS 864
FairOver: L GALUM CREEK OVERFL
4.1 MI W ILL 13, Perry, IL
Built 1977 Load: 47.3 t ADT: 600
ILL 145
FairOver: SUGAR CREEK
2.3 MI N ILL 146, Pope, IL
Built 1948 Load: 47.3 t ADT: 1,150
ILL 3
FairOver: RUNNING LAKE DITCH
2.1 MI S JACKSON CO, Union, IL
Built 1932 Load: 47.3 t ADT: 1,100
ILL 135
FairOver: CEDAR CR OVERFLOW
.5 MI N LITTLE YORK, Warren, IL
Built 1987 Load: 47.3 t ADT: 1,200
FAS 1818
FairOver: WABASH LEVEE DITCH
1.5 MI W MAUNIE, White, IL
Built 2011 Load: 47.3 t ADT: 225
FAS 2599
FairOver: FALL CREEK
.4M E I-172, Adams, IL
Built 1982 Load: 47.6 t ADT: 1,100
TOWNSHIP ROAD 76
FairOver: MILL CREEK
3 SE OF QUINCY, Adams, IL
Built 1982 Load: 47.6 t ADT: 400
Showing 13,051-13,100 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.