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
WOLF RD
FairOver: HICKORY CREEK
1 M N OF US 30, Will, IL
Built 1988 Load: 33.0 t ADT: 10,800
CH 13/S MARKET ST
FairOver: CRAB ORCHARD CR
AT SCL MARION, Williamson, IL
Built 1986 Load: 33.0 t ADT: 3,550
PECATONICA ROAD
FairOver: OTTER CREEK
0.1 MI S DURAND ROAD, Winnebago, IL
Built 1971 Load: 33.0 t ADT: 10
WHEELER RD
FairOver: OTTER CREEK
1 MI N FRITZ ROAD, Winnebago, IL
Built 2009 Load: 33.0 t ADT: 525
WINSLOW RD
FairOver: SUGAR CREEK
W EDGE OF SHIRLAND, Winnebago, IL
Built 1977 Load: 33.0 t ADT: 325
MINNS DRIVE
FairOver: WILLOW CREEK
.3 MI E. ALPINE RD, Winnebago, IL
Built 1990 Load: 33.0 t ADT: 750
FAS 2360CH 25
FairOver: BURKETT HOL
1.5 MI S BAYVIEW GAR, Woodford, IL
Built 1990 Load: 33.0 t ADT: 1,250
FAS 364/CH 13
FairOver: TRIB W BR PANTHER CR
1090N/1800E, Woodford, IL
Built 2004 Load: 33.0 t ADT: 750
IL 57
FairOver: HARKNESS CREEK
AT BLUFF HALL, Adams, IL
Built 1941 Load: 33.4 t ADT: 4,150
CH 8
FairOver: JENKINS CREEK
1.4 MI. W MARCELLINE, Adams, IL
Built 1900 Load: 33.4 t ADT: 150
FAS 945
FairOver: TRIB SEXTON CREEK
5 MI E OF MCCLURE, Alexander, IL
Built 1958 Load: 33.4 t ADT: 650
I-80 WB
FairOver: DRAINAGE DITCH
1.0 MI. W. OF IL 40, Bureau, IL
Built 1963 Load: 33.4 t ADT: 8,950
ILL 78
FairOver: JOHNSON CREEK
0.5 MI S JCT ILL 40, Carroll, IL
Built 1984 Load: 33.4 t ADT: 1,700
GRIDLEY RD - TR 89
FairOver: JOBS CREEK
2 MI E VIRGINIA, Cass, IL
Built 1981 Load: 33.4 t ADT: 400
I-57
FairOver: CARL BRANCH
4 MI S US 136, Champaign, IL
Built 1969 Load: 33.4 t ADT: 22,500
FAP 709 (US 136)
FairOver: SALT FORK VERMILION
.5 MI E OF RANTOUL, Champaign, IL
Built 1986 Load: 33.4 t ADT: 3,750
FAS 1781
FairOver: LUEBBERS BRANCH
0.3 MI W HAZLET PARK, Clinton, IL
Built 1963 Load: 33.4 t ADT: 325
TR 184/CREEK ROAD
FairOver: PRAIRIE CK BRANCH
3 MI W SHATTUC, Clinton, IL
Built 1963 Load: 33.4 t ADT: 25
I- 94, US 41 EDENS
FairOver: SKOKIE RIVER
0.9 M S WILLOW RD, Cook, IL
Built 1949 Load: 33.4 t ADT: 122,600
FOSTER AVE
FairOver: N SHORE CHANNEL
0.7 M W US 41, Cook, IL
Built 1935 Load: 33.4 t ADT: 19,100
CENTRAL AVE
FairOver: STONY CREEK
0.2 M S 103RD P26, Cook, IL
Built 1967 Load: 33.4 t ADT: 18,600
I-294 NB
FairOver: FLAG CR NORTH
0.9 M S US 34 P10, Cook, IL
Built 1958 Load: 33.4 t ADT: 86,900
FAP 116 (IL 130)
FairOver: CSXT RR
.5 MI S US 40, Cumberland, IL
Built 1931 Load: 33.4 t ADT: 3,150
US 51 (SB)(FAP 322
FairOver: LONG POINT CREEK
2 MI N OF WAPELLA, De Witt, IL
Built 1986 Load: 33.4 t ADT: 9,650
FAP-116 (ILL-130)
FairOver: STREAM
2 MI S RICHLAND CL, Edwards, IL
Built 1931 Load: 33.4 t ADT: 3,450
TR-100
FairOver: ONION CREEK
1.5 MI NW GRAYVILLE, Edwards, IL
Built 1984 Load: 33.4 t ADT: 50
FAP-322 (US-51)
FairOver: HICKORY CREEK
3.5 MI S US-40, Fayette, IL
Built 1965 Load: 33.4 t ADT: 3,500
ILL 149
FairOver: BNSF RR
2.4 MI W W FRANKFORT, Franklin, IL
Built 1934 Load: 33.4 t ADT: 3,300
FAS 450 - CH 20
FairOver: CEDAR CREEK
S1/2-15-T8NR1E, Fulton, IL
Built 1979 Load: 33.4 t ADT: 150
ILL 108
FairOver: TAYLOR CREEK
0.5 M E JCT IL 267, Greene, IL
Built 1930 Load: 33.4 t ADT: 800
MINOOKA RD/FAU400
FairOver: AUX SABLE CREEK
2.0 MI W OF MINOOKA, Grundy, IL
Built 1993 Load: 33.4 t ADT: 2,900
TR 123 PRAIRIE ROA
FairOver: WAUPECON CREEK
.27 MI W GONNAM ROAD, Grundy, IL
Built 1982 Load: 33.4 t ADT: 100
TR 130 HIGGINS RD
FairOver: TRIB TO MAZON RIVER
0.11 MI S ILL 113, Grundy, IL
Built 1987 Load: 33.4 t ADT: 125
TR-74A Verona Road
FairOver: Murray Sluice
0.53M S. Gardner Rd, Grundy, IL
Built 1989 Load: 33.4 t ADT: 225
FAP-853 (ILL-14)
FairOver: BR 10 MILE CREEK
5.2 MI E FRANK CO LN, Hamilton, IL
Built 1979 Load: 33.4 t ADT: 2,100
US 136
FairOver: MISS R/1ST/KEOKUK JCT RR
HAMILTN,IL-KEOKUK,IA, Hancock, IL
Built 1985 Load: 33.4 t ADT: 10,500
US 6
FairOver: MUD CREEK
.3 MI. E. OF IL 84, Henry, IL
Built 1992 Load: 33.4 t ADT: 4,300
IL 82
FairOver: HILLERY CREEK
3.2 MI S CAMBRIDGE, Henry, IL
Built 1994 Load: 33.4 t ADT: 750
TR 189
FairOver: BR OF SPRING CREEK
2MI E JCT45&24, Iroquois, IL
Built 1928 Load: 33.4 t ADT: 325
FAS 319 CH8
FairOver: TRIB VERMILION RIVER
2.5MI N SBI116 ONCH8, Iroquois, IL
Built 1940 Load: 33.4 t ADT: 350
FAS1918 CH7
FairOver: POND CREEK
SW1/4 SEC 20-8-2, Jackson, IL
Built 1968 Load: 33.4 t ADT: 2,750
FAP-821 (ILL-15)
FairOver: RAYSE CREEK
3.6 MI E WASH CO LN, Jefferson, IL
Built 1954 Load: 33.4 t ADT: 2,750
FAP-849 (ILL-142)
FairOver: ROCKY BRANCH
1 MI SE BELLE RIVE, Jefferson, IL
Built 1987 Load: 33.4 t ADT: 2,850
FRIENDSHIP WAY
FairOver: TRIB OF MILL CREEK
.1 MI S KESLINGER RD, Kane, IL
Built 2008 Load: 33.4 t ADT: 1,600
TR 147
FairOver: GAR CREEK
4 MI SW OF KANKAKEE, Kankakee, IL
Built 1969 Load: 33.4 t ADT: 50
WHEELER RD
FairOver: MIDDLE AUXSABLE CK
BY HOPKINS RD, Kendall, IL
Built 1978 Load: 33.4 t ADT: 125
WHEELER RD TR 79
FairOver: MIDDLE AUXSABLE CK
0.75 MILESW OF GROVE, Kendall, IL
Built 1980 Load: 33.4 t ADT: 125
IL 22
FairOver: FLINT CREEK
1.5 M W OF IL 59, Lake, IL
Built 1926 Load: 33.4 t ADT: 11,000
ILL 71
FairOver: BRUMBACH CREEK
6.78 MI N OF US 6, LaSalle, IL
Built 1941 Load: 33.4 t ADT: 5,250
ILL 23SBL LASALLE
FairOver: PARKING LOT ENTRANCE
DOWN TOWN OTTAWA, LaSalle, IL
Built 1982 Load: 33.4 t ADT: 10,100
Showing 10,351-10,400 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.