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-72 / US 36 (EB)
FairOver: LONG POINT SLOUGH
1.5M E ILLIOPLIS INT, Sangamon, IL
Built 1975 Load: 40.8 t ADT: 7,250
I-72 / US 36 (WB)
FairOver: LONG POINT SLOUGH
1.5M E ILLIOPLIS INT, Sangamon, IL
Built 1975 Load: 40.8 t ADT: 7,250
US 67
FairOver: CRANE CREEK
2 1/2 MI SE RUSHVILL, Schuyler, IL
Built 1959 Load: 40.8 t ADT: 3,350
FAS-653
FairOver: Jordan Creek
4 MI SE SHELBYVILLE, Shelby, IL
Built 1990 Load: 40.8 t ADT: 700
IL 26
FairOver: DRAINAGE DITCH
2.6 MI N CEDARVILLE, Stephenson, IL
Built 1995 Load: 40.8 t ADT: 4,550
FAS 512(CH 8)
FairOver: STREAM
3 MI W OF FAIRMOUNT, Vermilion, IL
Built 1961 Load: 40.8 t ADT: 1,750
FAU 7045(Bowman Av
FairOver: STONY CREEK
CITY OF DANVILLE, Vermilion, IL
Built 1987 Load: 40.8 t ADT: 4,900
FAI-64 EB
FairOver: SKILLET FORK LAGOON
4 MI E ILL-242 INT, Wayne, IL
Built 1974 Load: 40.8 t ADT: 5,500
FAI-64 WB
FairOver: SKILLET FORK LAGOON
4 MI E ILL-242 INT, Wayne, IL
Built 1974 Load: 40.8 t ADT: 5,500
TR 167
FairOver: RATTLESNAKE CREEK
0.5 MI W SAM DALE LK, Wayne, IL
Built 2013 Load: 40.8 t ADT: 50
ILL RT 84
FairOver: CEDAR CREEK
1.5 MI N ALBANY, Whiteside, IL
Built 1931 Load: 40.8 t ADT: 4,050
ILL 40
FairOver: SKUNK CREEK
3.5 MI E COLETA, Whiteside, IL
Built 1957 Load: 40.8 t ADT: 2,400
IL 59
FairOver: WOLF CREEK
0.19 M S OF 119TH, Will, IL
Built 2001 Load: 40.8 t ADT: 29,500
TR 0276
FairOver: BRUSHY CRK
3.3 MI NW COATSBURG, Adams, IL
Built 1900 Load: 41.1 t ADT: 50
CH 7 FAS 643
FairOver: FLAT BRANCH
3.25 MI S STONINGTON, Christian, IL
Built 1983 Load: 41.1 t ADT: 400
FAS-799
FairOver: BIG MUDDY CREEK
3 MI E SAILOR SPRING, Clay, IL
Built 1964 Load: 41.1 t ADT: 175
US 30 (LINCOLN HWY
FairOver: BUTTERFIELD CREEK
1.7 M W I-57, Cook, IL
Built 1954 Load: 41.1 t ADT: 19,000
31ST ST
FairOver: RR - BNSF & BRC
0.3 M E IL 50, Cook, IL
Built 1957 Load: 41.1 t ADT: 9,350
PULASKI RD NB
FairOver: RR - BRC
0.2 M S 71ST ST, Cook, IL
Built 1944 Load: 41.1 t ADT: 31,000
LAKEWOOD DRIVE
FairOver: NATURAL RAVINE
0.1 MI E SHERIDAN RD, Cook, IL
Built 1998 Load: 41.1 t ADT: 300
FAP-774 (ILL-32,33
FairOver: L WABASH RV OVERFLOW
1.75 MI NW EFFINGHAM, Effingham, IL
Built 1974 Load: 41.1 t ADT: 11,600
FAI 080 (EB & WB)
FairOver: AUX SABLE CRK
7.73 MI E OF ILL 47, Grundy, IL
Built 2003 Load: 41.1 t ADT: 39,100
FAS 422
FairOver: CHANEY CREEK
2.0 MI NE HAMILTON, Hancock, IL
Built 1986 Load: 41.1 t ADT: 850
TR 172A
FairOver: SHAVETAIL CR
6 MI S. CRESCENT CIT, Iroquois, IL
Built 1920 Load: 41.1 t ADT: 50
PLEASANT HILL ROAD
FairOver: ICG RAILROAD
1/4 MILE EAST RTE 51, Jackson, IL
Built 1982 Load: 41.1 t ADT: 7,600
FAP 650 - IL 78
FairOver: TRIB S FK APPLE RIV.
4.4 MI. N. US 20, Jo Daviess, IL
Built 1991 Load: 41.1 t ADT: 1,550
CANYON ROAD
FairOver: APPLE RIVER
4 MI. W. OF IL 78, Jo Daviess, IL
Built 1995 Load: 41.1 t ADT: 150
U.S. Routes 45/52
FairOver: KANKAKEE RIVER
.60 MI S OF ILL 17, Kankakee, IL
Built 1990 Load: 41.1 t ADT: 7,400
US ROUTE 52
FairOver: BRNCH GREEN RIVER
3.0 MI SE AMBOY, Lee, IL
Built 2002 Load: 41.1 t ADT: 2,300
CH 36 MOUND HILL R
FairOver: SUGAR CREEK
0.6 MI N PRAIRIEVLLE, Lee, IL
Built 1957 Load: 41.1 t ADT: 650
CH 16/FAS 355
FairOver: LONG POINT CREEK
1 MI E OF LONG POINT, Livingston, IL
Built 1986 Load: 41.1 t ADT: 550
IL 267
FairOver: KCS RR
.7M S JCT US 67, Morgan, IL
Built 1947 Load: 41.1 t ADT: 2,400
FAI 72 EB
FairOver: KCS RR
0.5 M E US67/IL267, Morgan, IL
Built 1975 Load: 41.1 t ADT: 4,975
FAI 72 WB
FairOver: KCS RR
0.5M E US67/IL267, Morgan, IL
Built 1975 Load: 41.1 t ADT: 4,975
IL 121 (FAP 320)
FairOver: MARROWBONE CREEK
2 MI S. DALTON CITY, Moultrie, IL
Built 2012 Load: 41.1 t ADT: 4,350
ILL 29
FairOver: GIMLET CREEK
JCT. ILL 29 & 17, Peoria, IL
Built 1993 Load: 41.1 t ADT: 5,550
PRINCEVILLE JUBILE
FairOver: E.BR.KICKAPOO CREEK
NW1/4 SEC36 T10NR6E, Peoria, IL
Built 1982 Load: 41.1 t ADT: 2,000
Lake Shore Drive
FairOver: Br. of Prince Run
NW QTR 29 AKRON TWP, Peoria, IL
Built 1961 Load: 41.1 t ADT: 75
I-72 S FR RD/TR 10
FairOver: THE SNY SLOUGH
2M SW I-172, Pike, IL
Built 1998 Load: 41.1 t ADT: 25
FAS 1591(CH 11)
FairOver: HONEY CREEK
2.73 MI S PITTSFIELD, Pike, IL
Built 1984 Load: 41.1 t ADT: 825
TR 90
FairOver: BIG SANDY CREEK
3 MI S WINCHESTER, Scott, IL
Built 1964 Load: 41.1 t ADT: 75
ILL 29
FairOver: LITTLE LICK CREEK
AT ELM ST IN N PEKIN, Tazewell, IL
Built 2007 Load: 41.1 t ADT: 19,800
I 57 NB
FairOver: BRADSHAW CREEK
3.6 MI N ILL 146, Union, IL
Built 1959 Load: 41.1 t ADT: 7,150
I 57 SB
FairOver: BRADSHAW CREEK
3.6 MI N ILL 146, Union, IL
Built 1959 Load: 41.1 t ADT: 7,150
US RT 30
FairOver: ROCK RIVER
1.5 MI W ROCK FALLS, Whiteside, IL
Built 1940 Load: 41.1 t ADT: 4,900
MOLINE RD
FairOver: DRAINAGE DITCH
1 MI NE OF LYNDON, Whiteside, IL
Built 1993 Load: 41.1 t ADT: 1,400
IL 78
FairOver: COON CREEK
2 MI S PROPHETSTOWN, Whiteside, IL
Built 1996 Load: 41.1 t ADT: 1,050
ILL 26
FairOver: PARTRIDGE CREEK
12.7 MI S OF ILL 17, Woodford, IL
Built 1992 Load: 41.1 t ADT: 2,550
IL 96
FairOver: URSA CREEK
IN URSA,.5M S IL 61, Adams, IL
Built 1924 Load: 41.5 t ADT: 4,300
IL 96
FairOver: BEAR CREEK
1.4M N MARCELLINE, Adams, IL
Built 1979 Load: 41.5 t ADT: 2,350
Showing 12,251-12,300 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.