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 64 EB
FairOver: FRENCH CREEK
1 MI W ILL-1, White, IL
Built 1972 Load: 39.2 t ADT: 6,100
LYNN BLVD
FairOver: BR. ELKHORN CREEK
0.5 MI N LEFEVER RD, Whiteside, IL
Built 1995 Load: 39.2 t ADT: 1,975
GOUGAR RD
FairOver: PRAIRIE CREEK
0.4 MI N HUFF RD, Will, IL
Built 1962 Load: 39.2 t ADT: 450
PECATONICA RD
FairOver: PECATONICA RIVER
N EDGE OF PECATONICA, Winnebago, IL
Built 1985 Load: 39.2 t ADT: 2,700
TR.50
FairOver: PARTRIDGE CREEK
825 EAST 1675 NORTH, Woodford, IL
Built 1978 Load: 39.2 t ADT: 275
FAU 7823/N 12TH ST
FairOver: CEDAR CREEK
1.9MI S IL24 ON 12TH, Adams, IL
Built 1995 Load: 39.5 t ADT: 6,300
TR 67
FairOver: JACKSON CREEK
0.4 MI E OF TAMMS, Alexander, IL
Built 1987 Load: 39.5 t ADT: 150
TR 47A
FairOver: JACKSON CREEK
1 MILE N OF TAMMS, Alexander, IL
Built 1989 Load: 39.5 t ADT: 100
MAIN ST
FairOver: KISHWAUKEE RIVER
S OF LINCOLN AVE, Boone, IL
Built 1972 Load: 39.5 t ADT: 4,150
TR 84
FairOver: PRAIRIE CREEK
6 MI ENE ARENZVILLE, Cass, IL
Built 1959 Load: 39.5 t ADT: 50
FAP 709 (US 136)
FairOver: SANGAMON RIVER
1 MI E OF FISHER, Champaign, IL
Built 1972 Load: 39.5 t ADT: 2,500
FAS 2704(OLD-50)
FairOver: STREAM
.1 MI E C BROWN PARK, Clay, IL
Built 1993 Load: 39.5 t ADT: 1,750
PALATINE EB FRNT R
FairOver: DES PLAINES RIVER
E US 45 (MILWAUKEE), Cook, IL
Built 1965 Load: 39.5 t ADT: 4,250
IL 394 NB
FairOver: RR - EJ&E AND NS
0.5 M S US 30, Cook, IL
Built 1955 Load: 39.5 t ADT: 30,700
GRAND AVE
FairOver: DES PLAINES RIVER
2 M W IL 43, Cook, IL
Built 1922 Load: 39.5 t ADT: 16,500
IL 19 (IRVING PAR
FairOver: DES PLAINES RIVER
E. DES PLAINES RIV R, Cook, IL
Built 1996 Load: 39.5 t ADT: 21,000
IL 38 FAP 567
FairOver: E. BR. KILBUCK CREEK
1.5 MI. E. CRESTON, DeKalb, IL
Built 1995 Load: 39.5 t ADT: 5,750
US 36(FAP 323)
FairOver: DRAINAGE DITCH
.75 MI W OF MURDOCK, Douglas, IL
Built 1987 Load: 39.5 t ADT: 2,500
FAP-825 (ILL-15)
FairOver: STREAM
2 MI E ALBION, Edwards, IL
Built 1979 Load: 39.5 t ADT: 3,300
FAS 2796 (US-40)
FairOver: BIG CREEK
W OF ALTAMONT, Effingham, IL
Built 1989 Load: 39.5 t ADT: 2,900
FAU 8381
FairOver: SLATE CREEK
S PART EFFINGHAM, Effingham, IL
Built 1974 Load: 39.5 t ADT: 950
TR-34A
FairOver: BIG CREEK
1.5 MI SE ALTAMONT, Effingham, IL
Built 1985 Load: 39.5 t ADT: 100
FAI-70 EB
FairOver: RACCOON CREEK
0.25 MI W. US-40 INT, Fayette, IL
Built 1966 Load: 39.5 t ADT: 12,900
FAI-70 WB
FairOver: RACCOON CREEK
0.25 MI W. US-40 INT, Fayette, IL
Built 1966 Load: 39.5 t ADT: 12,900
FAP-752 (US-40)
FairOver: CAMP CREEK OVERFLOW
1.1 MI E US-51, Fayette, IL
Built 1988 Load: 39.5 t ADT: 3,950
IL 267
FairOver: LICK CREEK South
6.6 M N GREENFIELD, Greene, IL
Built 1939 Load: 39.5 t ADT: 2,150
TR 42
FairOver: HURRICANE CREEK
.5 MI S OF HILLVIEWL, Greene, IL
Built 1987 Load: 39.5 t ADT: 25
IL 96
FairOver: CHANEY CREEK
.5M N US136,HAMILTON, Hancock, IL
Built 1935 Load: 39.5 t ADT: 1,650
IL 61
FairOver: FLOUR CREEK
3.6M N IL101-AUGUSTA, Hancock, IL
Built 2001 Load: 39.5 t ADT: 1,100
TR 73
FairOver: LA HARPE CREEK
2.5 SE LAHARPE, Hancock, IL
Built 1978 Load: 39.5 t ADT: 75
US 150
FairOver: MUD CREEK
0.1 MI S OPHIEM RD, Henry, IL
Built 1930 Load: 39.5 t ADT: 2,300
GREEN RIVER ROAD
FairOver: MINERAL CREEK
0.4 MI. N. OF US 6, Henry, IL
Built 1990 Load: 39.5 t ADT: 1,050
COUNTY HIGHWAY 41
FairOver: COON CREEK
6.30 MI S OF US-24, Iroquois, IL
Built 1954 Load: 39.5 t ADT: 350
TR 189
FairOver: POND CREEK
EAST LINE SEC 29-8-2, Jackson, IL
Built 1987 Load: 39.5 t ADT: 1,150
ILL 16 & 100
FairOver: AUTEN DITCH
1.6 MI SE CALHOUN CO, Jersey, IL
Built 1965 Load: 39.5 t ADT: 2,250
ILL 100
FairOver: BAUM BRANCH CREEK
0.1 M S JCT 16, Jersey, IL
Built 1928 Load: 39.5 t ADT: 950
CANYON ROAD
FairOver: WOLF CREEK
1.4 MI W OF IL 78, Jo Daviess, IL
Built 1990 Load: 39.5 t ADT: 250
EB US 34
FairOver: CEDAR CREEK
SW EDGE OF GALESBURG, Knox, IL
Built 1979 Load: 39.5 t ADT: 8,950
IL 23 NB IN STREAT
FairOver: INTER STREAM
14.30 MI S OF ILL 71, LaSalle, IL
Built 1965 Load: 39.5 t ADT: 8,000
ILL 23 FAP 68
FairOver: OTTER CR
2.8 MI N. OF ILL 18, LaSalle, IL
Built 1974 Load: 39.5 t ADT: 6,300
FAS-1808 (SBI-12)
FairOver: ALLISON DITCH NO 2
5 MI E LAWRENCELILLE, Lawrence, IL
Built 1992 Load: 39.5 t ADT: 2,450
ILL 17
FairOver: VERMILION RIVER
1.3 M E JCT 17 & 23, Livingston, IL
Built 1937 Load: 39.5 t ADT: 1,800
ILL 17
FairOver: DRAIN DT
2.5 M E JCT 17 & 23, Livingston, IL
Built 1937 Load: 39.5 t ADT: 525
IL 23
FairOver: NORTH CREEK
2.11 MI S OF I55, Livingston, IL
Built 1994 Load: 39.5 t ADT: 5,150
OLD IL 121
FairOver: SUGAR CREEK
2.5MI SE HARTSBURG, Logan, IL
Built 1999 Load: 39.5 t ADT: 1,200
IL 111
FairOver: LITTLE PIASA CREEK
3.7 M S JCT IL 16, Macoupin, IL
Built 1929 Load: 39.5 t ADT: 4,550
TOWNSHIP ROAD 354
FairOver: SUGAR CREEK
4.5 MI WEST VIRDEN, Macoupin, IL
Built 1981 Load: 39.5 t ADT: 125
FAI 55/70 EB
FairOver: CANTEEN CREEK
FAI 70 OVER CANTEEN, Madison, IL
Built 1960 Load: 39.5 t ADT: 26,800
FAI 55/70 WB
FairOver: CANTEEN CREEK
FAI 70 OVER CANTEEN, Madison, IL
Built 1960 Load: 39.5 t ADT: 26,800
FAI 70 EB
FairOver: HIGHLAND SILVER LAKE
2.8 M E ILL 143, Madison, IL
Built 1962 Load: 39.5 t ADT: 11,800
Showing 11,901-11,950 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.