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 1857
FairOver: TRIB TO DRNG DITCH
3.6M SE FULTS ON CH3, Monroe, IL
Built 1955 Load: 40.2 t ADT: 200
IL 32 (FAP 762)
FairOver: LAKE SHELBYVILLE
4.0 MI S SULLIVAN, Moultrie, IL
Built 1967 Load: 40.2 t ADT: 4,300
BAILEYVILLE ROAD
FairOver: BR. LEAF RIVER
1.5 MI N FORRESTON, Ogle, IL
Built 1989 Load: 40.2 t ADT: 1,300
IL 17/40
FairOver: UP RR
AT CAMP GROVE, Peoria, IL
Built 1979 Load: 40.2 t ADT: 1,500
ILL 29
FairOver: COON CREEK
2MIS N CHILLICOTHE, Peoria, IL
Built 1952 Load: 40.2 t ADT: 5,350
ILL 13-127
FairOver: BEAUCOUP CREEK
3 MI S ILL 152, Perry, IL
Built 1926 Load: 40.2 t ADT: 3,500
TR 28
FairOver: DRAINAGE DITCH
0.5 MI S HULL, Pike, IL
Built 1979 Load: 40.2 t ADT: 125
FAS 928
FairOver: CACHE RIVER TRIB
VILLAGE OF KARNAK, Pulaski, IL
Built 2003 Load: 40.2 t ADT: 325
ILL 5
FairOver: MILL CREEK
1 MI E OF US 67, Rock Island, IL
Built 1932 Load: 40.2 t ADT: 12,400
ILL 97
FairOver: RICHLAND CREEK
.5M S SALISBURY, Sangamon, IL
Built 1936 Load: 40.2 t ADT: 4,200
ILL 163
FairOver: HARDING DITCH
50 FT E ILL 157, St. Clair, IL
Built 1975 Load: 40.2 t ADT: 3,350
US 20 WB
FairOver: WICKHAM CREEK
4.0 MI W WINN CO LN, Stephenson, IL
Built 1983 Load: 40.2 t ADT: 12,700
US 20 EB
FairOver: WICKHAM CREEK
4 MI W. WINNEBAGO CO, Stephenson, IL
Built 1999 Load: 40.2 t ADT: 12,700
I 57 NB
FairOver: CACHE RIVER
2.1 MI N ILL 146, Union, IL
Built 1959 Load: 40.2 t ADT: 7,150
I 57 SB
FairOver: CACHE RIVER
2.1 MI N ILL 146, Union, IL
Built 1959 Load: 40.2 t ADT: 7,150
TR-43
FairOver: JORDAN CREEK
2 MI SW LANCASTER, Wabash, IL
Built 1977 Load: 40.2 t ADT: 50
FAP-328 (US-45)
FairOver: SKILLET FORK CREEK
.8 MI S MILL SHOALS, White, IL
Built 1978 Load: 40.2 t ADT: 1,600
FAP-877 (ILL-141)
FairOver: TRIB CANE CREEK
3.5 MI E JCT ILL-1, White, IL
Built 1995 Load: 40.2 t ADT: 2,550
200 E
FairOver: TRIB TO BEAR CREEK
1.5MI N NORRIS CITY, White, IL
Built 2018 Load: 40.2 t ADT: 75
MOLINE RD
FairOver: ROCK CREEK
2.5 MI E ERIE, Whiteside, IL
Built 1971 Load: 40.2 t ADT: 1,000
IL 84
FairOver: BNSF RR
2 MI S OF CARROLL CO, Whiteside, IL
Built 1980 Load: 40.2 t ADT: 5,500
I- 57 SB
FairOver: ABANDONED RR
12.8 M S OF US 30, Will, IL
Built 1967 Load: 40.2 t ADT: 14,400
VINE STREET
FairOver: HICKORY CREEK
0.2 MI NORTH US 30, Will, IL
Built 1974 Load: 40.2 t ADT: 4,000
ILL 75
FairOver: PECATONICA RIVER
1.2 MI W MERIDIAN RD, Winnebago, IL
Built 1990 Load: 40.2 t ADT: 2,650
CROWLEY RD
FairOver: N BR OTTER CREEK
0.5 MI N FRITZ ROAD, Winnebago, IL
Built 1966 Load: 40.2 t ADT: 200
MERIDIAN RD
FairOver: BR N FK KENT CR
0.2 M N SAFFORD RD, Winnebago, IL
Built 1979 Load: 40.2 t ADT: 3,400
RIVERSIDE BLVD
FairOver: ROCK RIVER& RR
WEST LOVES PARK, Winnebago, IL
Built 1953 Load: 40.2 t ADT: 17,700
CH 5
FairOver: PANTHER CR
2 MI NORTH OF SECOR, Woodford, IL
Built 1975 Load: 40.2 t ADT: 250
ILL 143
FairOver: BEAVER CREEK
1.8 MI W OF ILL 127, Bond, IL
Built 1934 Load: 40.5 t ADT: 1,200
IL 99
FairOver: MISSOURI CREEK
.25 S SCHUYLER LINE, Brown, IL
Built 1931 Load: 40.5 t ADT: 500
ILL 78
FairOver: SAND CREEK
N EDGE ARGO FAY RD, Carroll, IL
Built 1989 Load: 40.5 t ADT: 1,550
MT AUBURN RD
FairOver: PAPER MILL BRANCH
3.2M N IL29,TAYLORVI, Christian, IL
Built 1933 Load: 40.5 t ADT: 950
CH-8
FairOver: LOCUST CREEK
1.75 MI W OWANECO, Christian, IL
Built 2003 Load: 40.5 t ADT: 300
FAI 64 EB
FairOver: SUGAR CK OVERFLOW
1/2 mi W DAMIANSVLLE, Clinton, IL
Built 1971 Load: 40.5 t ADT: 15,500
IL 19 (IRVING PAR
FairOver: RR - EJ&E
1.6 M W IL 59, Cook, IL
Built 1934 Load: 40.5 t ADT: 12,400
PULASKI RD
FairOver: SANITARY&SHIP CANAL
3700 S PULSKI ROAD, Cook, IL
Built 1930 Load: 40.5 t ADT: 18,800
ARGYLE ST
FairOver: N.BRANCH CHGO RIVER
5000 N & 3000 W, Cook, IL
Built 1909 Load: 40.5 t ADT: 1,475
IL 56
FairOver: PRVT RD & BIKE PATH
2.5 M E OF IL 59, DuPage, IL
Built 1985 Load: 40.5 t ADT: 19,600
FERRY RD
FairOver: WB DUPAGE RIVER
0.2 MI E OF RIVER RD, DuPage, IL
Built 1998 Load: 40.5 t ADT: 5,450
FAS 1751 (US-40)
FairOver: CSXT RR
.3 MI E BOND CO LN, Fayette, IL
Built 1943 Load: 40.5 t ADT: 1,250
FAS 2793 (ILL-140)
FairOver: HURRICANE CREEK
.9 MI SE US-40, Fayette, IL
Built 1983 Load: 40.5 t ADT: 600
TR-516
FairOver: TRIB SUGAR CREEK
1.5 MI NE ST ELMO, Fayette, IL
Built 1979 Load: 40.5 t ADT: 100
ILL 9
FairOver: BIG FOUR DITCH
9.94 MI E OF ILL 47, Ford, IL
Built 1975 Load: 40.5 t ADT: 1,700
TR 296
FairOver: EWING CK
SOUTH OF PARRISH, Franklin, IL
Built 1900 Load: 40.5 t ADT: 10
HEITZ RD - TR 459
FairOver: BN RR (078458U)
SW-20-T4NR1E, Fulton, IL
Built 2018 Load: 40.5 t ADT: 50
Hillview-Eldred Rd
FairOver: GARRISON HOLLOW CK
2 M S HILLVIEW, Greene, IL
Built 1960 Load: 40.5 t ADT: 300
TR-131
FairOver: BEAR CREEK
4 M NW GREENFIELD, Greene, IL
Built 1981 Load: 40.5 t ADT: 100
ILL 47
FairOver: MURRAY CREEK
7.23 MILES N OF I-55, Grundy, IL
Built 1994 Load: 40.5 t ADT: 4,550
ILL 96
FairOver: THOMPSON CREEK
AT THIRD AND ELM STS, Henderson, IL
Built 2010 Load: 40.5 t ADT: 1,950
IL 94
FairOver: N HENDERSON CREEK
3.6MI W OF IL 135, Henderson, IL
Built 1988 Load: 40.5 t ADT: 500
Showing 12,101-12,150 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.