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
CENTRAL AVE.
FairOver: S.BR.ROCK CREEK
0.2M.N.OF WILL-KKK L, Will, IL
Built 1990 Load: 32.4 t ADT: 200
KENNEDY RD(319TH S
FairOver: EXLINE SLOUGH
0.4M.E OF KEDZIE AVE, Will, IL
Built 1991 Load: 32.4 t ADT: 100
HARLEM RD
FairOver: ROCK CREEK
1.8 M N PEOTONE, Will, IL
Built 1992 Load: 32.4 t ADT: 775
CRAWFORD AVE
FairOver: BLK WAL CR
1.4 M.SOF PAULIGG RD, Will, IL
Built 1993 Load: 32.4 t ADT: 35
WESTERN AV
FairOver: TRIB EXLINE SLOUGH
0.7 MI N KKK CO LINE, Will, IL
Built 1999 Load: 32.4 t ADT: 100
CORNING ROAD
FairOver: EX LINE SLOUGH
.25 M E KEDZIE, Will, IL
Built 2004 Load: 32.4 t ADT: 75
KENTUCKY RD
FairOver: PIKE CREEK
1.9 MI.E.IL 1, Will, IL
Built 1978 Load: 32.4 t ADT: 225
319TH ST
FairOver: TRIM CREEK
0.9 MI.W.IL 1, Will, IL
Built 1980 Load: 32.4 t ADT: 100
323RD ST
FairOver: PIKE CREEK
1.7 MI E.IL 1, Will, IL
Built 1983 Load: 32.4 t ADT: 35
YATES AVENUE
FairOver: TRIM CREEK
0.1 MI N.EAGLE LK RD, Will, IL
Built 1992 Load: 32.4 t ADT: 500
LEASURE RD.
FairOver: FORKED CREEK
100' NO OF IL 102, Will, IL
Built 1987 Load: 32.4 t ADT: 75
DANIELSON ROAD
FairOver: FORKED CREEK
0.8M N OF MANTERO RD, Will, IL
Built 1989 Load: 32.4 t ADT: 75
HAZELTON (BELL) RD
FairOver: FORKED CREEK
0.2 MI E LONG RD, Will, IL
Built 1997 Load: 32.4 t ADT: 25
RIVER CROSSING DRI
FairOver: DUPAGE RIVER
0.7M N OF I-80, Will, IL
Built 2003 Load: 32.4 t ADT: 175
119TH STREET
FairOver: EAST NORMAN DRAIN
0.1 M W OF IL 59, Will, IL
Built 2006 Load: 32.4 t ADT: 11,400
KILDEER DR
FairOver: LILY CACHE CREEK
0.4 MI S/BOUGHTON RD, Will, IL
Built 2013 Load: 32.4 t ADT: 1,950
ROYCE RD
FairOver: E BR DUPAGE RIVER
0.1 MI W. OF ILL 53, Will, IL
Built 1986 Load: 32.4 t ADT: 6,350
ESSINGTON ROAD
FairOver: LILY CACHE CREEK
0.5 MI S 127TH ST, Will, IL
Built 2001 Load: 32.4 t ADT: 2,200
127TH ST
FairOver: LILY CACHE CREEK
1.2 MI W I-55, Will, IL
Built 2001 Load: 32.4 t ADT: 5,650
CATON FARM ROAD.
FairOver: EJ&E RR
0.7 MI. E.OF US30, Will, IL
Built 1986 Load: 32.4 t ADT: 5,950
REBECCA RD
FairOver: TRIBUTARY ROCK RUN
100 FT S DEERPATH DR, Will, IL
Built 1986 Load: 32.4 t ADT: 50
FAIRLANE DRIVE
FairOver: TRIBUTARY ROCK RUN
200 FT N CAMBELL ST, Will, IL
Built 1986 Load: 32.4 t ADT: 650
INFANTRY DR
FairOver: ROCK RUN CREEK TRIB
0.35M N OF JEFFERSON, Will, IL
Built 1996 Load: 32.4 t ADT: 8,100
DRAUDEN ROAD
FairOver: UNNAMED STREAM
0.25M N. CATON FARM, Will, IL
Built 1996 Load: 32.4 t ADT: 6,800
N. CEDAR ROAD
FairOver: HICKORY CREEK
0.05 M N. OF US 30, Will, IL
Built 2006 Load: 32.4 t ADT: 7,800
135TH EB
FairOver: W BR DESPLAINES RV
0.4 MI E IL 53, Will, IL
Built 1997 Load: 32.4 t ADT: 7,100
135TH EB ROMEOVILL
FairOver: W BR DESPLAINES RV
0.46 MI E IL 53, Will, IL
Built 1997 Load: 32.4 t ADT: 7,100
135TH (EB) ST
FairOver: E BR DESPLAINES RVR
0.75 MI E.IL 53, Will, IL
Built 1997 Load: 32.4 t ADT: 7,100
135TH ST/ROMEO RD
FairOver: S&SCANAL,I&M,BNSFRR
ROMEOVILLE, Will, IL
Built 1997 Load: 32.4 t ADT: 14,200
OR-43 Material Roa
FairOver: DesPlaines River
.5M E of IL53, Will, IL
Built 1960 Load: 32.4 t ADT: 950
BASELINE ROAD
FairOver: INTERMODAL YARD LEAD
0.91 MI N/ARSENAL RD, Will, IL
Built 2010 Load: 32.4 t ADT: 8,900
TR 29
FairOver: POND CREEK
2 MI. NW CORINTH, Williamson, IL
Built 1977 Load: 32.4 t ADT: 75
TR 423
FairOver: LITTLE GRASSY CREEK
6 MI SW OF CARTERVIL, Williamson, IL
Built 1978 Load: 32.4 t ADT: 650
TR 509
FairOver: LITTLE WOLF CREEK
3 MI NW PULLEYS MILL, Williamson, IL
Built 1986 Load: 32.4 t ADT: 25
TR 278
FairOver: LITTLE SALINE CREEK
0200N-1050E, Williamson, IL
Built 1990 Load: 32.4 t ADT: 50
TR 552
FairOver: POND CREEK
5 MI N OF PITTSBURG, Williamson, IL
Built 1994 Load: 32.4 t ADT: 125
OLD IL 13-MAIN ST
FairOver: STREAM AT ECL MARION
NEAR ECL OF MARION, Williamson, IL
Built 2003 Load: 32.4 t ADT: 3,800
TELEGRAPH RD
FairOver: DRAINAGE DITCH
E EDGE PECATONICA, Winnebago, IL
Built 1935 Load: 32.4 t ADT: 1,400
ILL 75
FairOver: ROCK RIVER
IN ROCKTON, Winnebago, IL
Built 1927 Load: 32.4 t ADT: 7,200
I-39 & US 20
FairOver: MADIGAN CREEK
1 MI S OF I-90, Winnebago, IL
Built 1963 Load: 32.4 t ADT: 50,900
ARGYLE RD
FairOver: STREAM
0.7 MI S OF ILL 173, Winnebago, IL
Built 1983 Load: 32.4 t ADT: 5,750
ILL 2
FairOver: DRAINAGE DITCH
.75 MI N LATHAM RD, Winnebago, IL
Built 1989 Load: 32.4 t ADT: 9,950
IL 251 & RAMPS
FairOver: SPRING CREEK
.1 MI N SPRING CR RD, Winnebago, IL
Built 2002 Load: 32.4 t ADT: 29,700
IL RTE 70
FairOver: DRAINAGE DITCH
.4 MI E. MERIDIAN RD, Winnebago, IL
Built 2003 Load: 32.4 t ADT: 4,600
HARRISON AVE
FairOver: S.E. DRAINAGE WAY
AT 20TH STREET, Winnebago, IL
Built 1956 Load: 32.4 t ADT: 16,100
ALPINE ROAD
FairOver: PEBBLE CREEK
0.1 MI N RIVERSIDE, Winnebago, IL
Built 1972 Load: 32.4 t ADT: 16,700
WILD GINGER ROAD
FairOver: KEITH CR
.25 MI N GUILFORD RD, Winnebago, IL
Built 1973 Load: 32.4 t ADT: 775
EAST RIVERSIDE BLV
FairOver: SPRING CREEK
0.1 MI. W. OF I-90, Winnebago, IL
Built 1989 Load: 32.4 t ADT: 25,700
SPRING LAKE DR
FairOver: SPRING CREEK
.01 N OF SPRINGBROOK, Winnebago, IL
Built 1965 Load: 32.4 t ADT: 625
COACHMAN DRIVE
FairOver: KEITH CREEK
0.2 MI. N. GUILFORD, Winnebago, IL
Built 2004 Load: 32.4 t ADT: 150
Showing 10,101-10,150 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.