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
TR 297 River Rd
GoodOver: Skillet Fork Creek
3 Mi SE of Iuka, Marion, IL
Built 2021 Load: 43.1 t ADT: 75
I-74 WB
GoodOver: LITTLE KICKAPOO CR
7.6 MI E OF US 51, McLean, IL
Built 1968 Load: 43.1 t ADT: 10,800
FAS 491 CH 15
GoodOver: BR MACKINAW RIVER
3.0 MI S COLFAX, McLean, IL
Built 1988 Load: 43.1 t ADT: 775
GLENN AVE.
GoodOver: BR SUGAR CREEK
0.75 MI NNE 51 & 150, McLean, IL
Built 2020 Load: 43.1 t ADT: 225
ILL 89
GoodOver: ALLFORKS CREEK SOUTH
1 MI N OF IL 71, Putnam, IL
Built 2012 Load: 43.1 t ADT: 4,100
PORT BYRON ROAD
GoodOver: CANOE CREEK
2 MI W OF I-88, Rock Island, IL
Built 1989 Load: 43.1 t ADT: 650
IL 125
GoodOver: TRIB PRAIRIE CREEK
2.3 MI W IL 97, Sangamon, IL
Built 2001 Load: 43.1 t ADT: 6,150
TR 134
GoodOver: Sugar Creek Trib
0.62 mi W IL 4, Sangamon, IL
Built 2019 Load: 43.1 t ADT: 75
WASHINGTONFAU-7977
GoodOver: SPRING CREEK
0.02MI WEST KOKEMILL, Sangamon, IL
Built 1984 Load: 43.1 t ADT: 5,100
WEST PRESTON ROAD
GoodOver: PRESTON CREEK
1.0 MI S OF US RT 20, Stephenson, IL
Built 2022 Load: 43.1 t ADT: 50
ILL RTE 127
GoodOver: MILL CREEK
0.5 MI N MILL CREEK, Union, IL
Built 1988 Load: 43.1 t ADT: 900
CH 3
GoodOver: MIDDLE BRANCH
1.5 MI S CHENEYVILLE, Vermilion, IL
Built 1941 Load: 43.1 t ADT: 250
ILL 141
GoodOver: TRIB CANE CREEK
4.75 MI E JCT ILL-1, White, IL
Built 2010 Load: 43.1 t ADT: 2,550
CHANNAHON MINOKA R
GoodOver: I&M CANAL
0.3 MI NW CHANNAHON, Will, IL
Built 1947 Load: 43.1 t ADT: 4,900
WB IL 13
GoodOver: BNSF RR
MARION, Williamson, IL
Built 2015 Load: 43.1 t ADT: 26,300
FAS 2904
GoodOver: LITTLE SALINE CREEK
2 MI NE PULLEYS MILL, Williamson, IL
Built 1983 Load: 43.1 t ADT: 3,850
US 20 BR
GoodOver: KEITH CREEK
.75 MI W ALPINE RD, Winnebago, IL
Built 1993 Load: 43.1 t ADT: 20,100
BURDEN ROAD
GoodOver: BR ROCK RIVER
0.2 MI N RT 173, Winnebago, IL
Built 1966 Load: 43.1 t ADT: 2,550
MAIN STREET
GoodOver: KINNIKINNICK CREEK
IN ROSCOE, Winnebago, IL
Built 2000 Load: 43.1 t ADT: 5,600
TR 419 (N 900th AV
GoodOver: BR of Tournear Creek
0.8 MI E FAS 594/CH4, Adams, IL
Built 2021 Load: 43.4 t ADT: 175
FAP 14-ILL 3-FH 9
GoodOver: SEXTON CREEK
GALE, Alexander, IL
Built 1990 Load: 43.4 t ADT: 3,600
IL 78
GoodOver: PANTHER CREEK OVRFLW
SW SIDE CHANLERVILLE, Cass, IL
Built 2012 Load: 43.4 t ADT: 1,450
FAS 799 (CH 3)
GoodOver: Little Wabash River
0.5 MI. E. Louisvill, Clay, IL
Built 2022 Load: 43.4 t ADT: 950
IL 133 (FAP 749)
GoodOver: EMBARRAS RIVER
1.5 MI W OAKLAND, Coles, IL
Built 2015 Load: 43.4 t ADT: 2,050
FAS 668(CH 16)
GoodOver: GREASY CREEK TRIB
1.3 MI E FAIRGRANGE, Coles, IL
Built 1996 Load: 43.4 t ADT: 450
FAP 325 (IL 16)
GoodOver: Little Wabash C
2 M. West of Mattoon, Coles, IL
Built 2018 Load: 43.4 t ADT: 3,350
CRAWFORD AVE
GoodOver: CAL UNION DITCH TRIB
0.8 M N 183RD ST, Cook, IL
Built 1993 Load: 43.4 t ADT: 14,000
FAP 332 (IL1)
GoodOver: SUGAR CREEK
1 MI N LAWRENCE CO L, Crawford, IL
Built 2022 Load: 43.4 t ADT: 3,600
US 51 (SB)(FAP 322
GoodOver: TEN MILE CREEK
0.4 M S OF BUS US 51, De Witt, IL
Built 1985 Load: 43.4 t ADT: 7,450
IL 64 FAP 307
GoodOver: E/S BR KISHWAUKEE RV
1 MI E JCT IL 23(N), DeKalb, IL
Built 2012 Load: 43.4 t ADT: 7,700
TR 187 A
GoodOver: DRAINAGE DITCH
1.5 MI SW HINDSBORO, Douglas, IL
Built 2006 Load: 43.4 t ADT: 50
TR 218
GoodOver: Brushy Creek
2.7 mi SE of Murdock, Douglas, IL
Built 2023 Load: 43.4 t ADT: 25
FAP-322 (US-51)
GoodOver: ASH CREEK
3.8 MI S SHELBY C L, Fayette, IL
Built 1988 Load: 43.4 t ADT: 2,800
HILLVIEW ELDRED Rd
GoodOver: TRIMLEY CREEK
2 M N HILLVIEW, Greene, IL
Built 1957 Load: 43.4 t ADT: 350
IL 267
GoodOver: LICK CREEK North
0.78 M S MORGAN CO L, Greene, IL
Built 1992 Load: 43.4 t ADT: 2,250
PRICE ST
GoodOver: I & M Canal
Wm. G. Stratton SP, Grundy, IL
Built 2020 Load: 43.4 t ADT: 300
EDMONSON LANDING
GoodOver: HANEY CREEK
5MI NE CAVE N ROCK, Hardin, IL
Built 2019 Load: 43.4 t ADT: 100
TR 191
GoodOver: STREAM
SE-5-T8NR4W, Henderson, IL
Built 1910 Load: 43.4 t ADT: 25
US 6
GoodOver: SHABBONA SPECL DITCH
2 MI. E. ATKINSON, Henry, IL
Built 1993 Load: 43.4 t ADT: 1,500
IL 116
GoodOver: LANGAN CREEK
3.97M E FORD C LN, Iroquois, IL
Built 1992 Load: 43.4 t ADT: 850
FAP-95 (ILL-33)
GoodOver: BRANCH LAWS CREEK
2 MI SE WHEELER, Jasper, IL
Built 1983 Load: 43.4 t ADT: 5,700
CH 5
GoodOver: STREAM
.75 E ILL 109, Jersey, IL
Built 1925 Load: 43.4 t ADT: 450
FAS 929
GoodOver: MCCORKLE CREEK
.25 MI S IL 146, Johnson, IL
Built 2004 Load: 43.4 t ADT: 750
IL 25 EB STEARNS
GoodOver: E BR BREWSTER CREEK
0.3 M E Gilbert St, Kane, IL
Built 2014 Load: 43.4 t ADT: 5,350
CH 11
GoodOver: SPOON RIVER
NE-1-T10NR3E, Knox, IL
Built 2016 Load: 43.4 t ADT: 75
US 6
GoodOver: MILLIKEN CR
1.73 MI E OF ILL 71, LaSalle, IL
Built 2016 Load: 43.4 t ADT: 4,050
ILL 251
GoodOver: STEWARD CREEK
2.5 MI. NW. STEWARD, Lee, IL
Built 2000 Load: 43.4 t ADT: 1,600
US 52
GoodOver: STREAM
1 MI. S. OF I-88, Lee, IL
Built 1990 Load: 43.4 t ADT: 2,900
LEE CENTER RD-FAS1
GoodOver: BR. OF GREEN RIVER
.2 MI W STERLING RD, Lee, IL
Built 1991 Load: 43.4 t ADT: 750
ILL 47
GoodOver: INDIAN CREEK
8.91 M S OF US 24, Livingston, IL
Built 1993 Load: 43.4 t ADT: 2,450
Showing 24,001-24,050 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |