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
BLUEGRASS LN
GoodOver: SPRING CREEK
1.26 MI S IL 4, Jackson, IL
Built 2021 Load: 41.5 t ADT: 25
TR 109
GoodOver: Crooked Creek
1.5 Mi. SE Rose Hill, Jasper, IL
Built 2019 Load: 41.5 t ADT: 20
I 57 NB
GoodOver: ATCHISON CREEK
2 MI N INA INT, Jefferson, IL
Built 2021 Load: 41.5 t ADT: 18,750
I 57 SB
GoodOver: ATCHISON CREEK
2 MI N INA INT, Jefferson, IL
Built 2021 Load: 41.5 t ADT: 18,750
US 67 NB
GoodOver: PIASA CREEK
7.6 MI S JERSEYVILLE, Jersey, IL
Built 2012 Load: 41.5 t ADT: 12,100
DUNHAM RD NB
GoodOver: CC&P RR
0.1M S OF STEARNS RD, Kane, IL
Built 2010 Load: 41.5 t ADT: 17,200
DUNHAM RD SB
GoodOver: CC&P RR
.10M S OF STEARNS RD, Kane, IL
Built 2010 Load: 41.5 t ADT: 17,200
IL 115
GoodOver: Reddick Creek
1.1M N of CABERY, Kankakee, IL
Built 2016 Load: 41.5 t ADT: 775
STEARNS SCHOOL RD
GoodOver: MILL CREEK
1 MI N OF ILL 132, Lake, IL
Built 2023 Load: 41.5 t ADT: 11,300
I-80 EB
GoodOver: LITTLE VERMILLION RV
2.1 MI E JCT IL 251, LaSalle, IL
Built 1996 Load: 41.5 t ADT: 14,200
US 51,I-39
GoodOver: STREAM
4.61 MI N OF ILL 18, LaSalle, IL
Built 1988 Load: 41.5 t ADT: 19,400
TR 452
GoodOver: MISSION CREEK
E. 2750 N. 3975, LaSalle, IL
Built 2018 Load: 41.5 t ADT: 50
US 52
GoodOver: PIKE CREEK
.1 MI W LASALLE CO, Lee, IL
Built 1993 Load: 41.5 t ADT: 2,250
TR 137 (1600N)
GoodOver: Trib. to Rooks Creek
1.5 S. of Graymont (795E), Livingston, IL
Built 2021 Load: 41.5 t ADT: 75
TR 57
GoodOver: STREAM
2600N,2750E, Livingston, IL
Built 1995 Load: 41.5 t ADT: 75
OLD ILL 121
GoodOver: BR KICKAPOO CREEK
0.4 MI N LINCOLN, Logan, IL
Built 1998 Load: 41.5 t ADT: 1,700
OLD ILL 121
GoodOver: BR KICKAPOO CREEK
0.3 MI N LINCOLN, Logan, IL
Built 1998 Load: 41.5 t ADT: 1,700
OLD ILL 121
GoodOver: BR KICKAPOO CREEK
0.5 MI N LINCOLN, Logan, IL
Built 1998 Load: 41.5 t ADT: 1,700
FAS 564 (CH 22)
GoodOver: Trib to Sugar Creek
0.17 mi N IL 10, Logan, IL
Built 2018 Load: 41.5 t ADT: 300
CH 38
GoodOver: Big Apple Creek
1.76 Mi N Scottville, Macoupin, IL
Built 2018 Load: 41.5 t ADT: 100
I-55 SB
GoodOver: UPRR
N OF NEW DOUGLAS RD, Madison, IL
Built 1973 Load: 41.5 t ADT: 14,400
IL 159
GoodOver: UPRR
3 mi N of IL 143, Madison, IL
Built 1996 Load: 41.5 t ADT: 5,050
OLD CARPENTER/TR 1
GoodOver: TRIB TO CAHOKIA CK
2.5MI N EDWARDSVILLE, Madison, IL
Built 2006 Load: 41.5 t ADT: 625
Albers Lane - MS 9
GoodOver: Rocky Branch Creek
N Bethalto, Madison, IL
Built 2022 Load: 41.5 t ADT: 700
TR 133
GoodOver: CRENSHAW CREEK
2 MI N OF UNIONVILLE, Massac, IL
Built 1991 Load: 41.5 t ADT: 400
MAIN STREET
GoodOver: S RBR. KISHWAUKEE
0.1MI W COYNE STA RD, McHenry, IL
Built 1961 Load: 41.5 t ADT: 9,500
BAY ROAD
GoodOver: LILY LAKE DRAIN
1.0 MI SE OF CHAPELH, McHenry, IL
Built 1968 Load: 41.5 t ADT: 6,200
ALGONQUIN ROAD
GoodOver: GRAVEL PIT CREEK
.2M SE OF PYOTT, McHenry, IL
Built 2004 Load: 41.5 t ADT: 31,600
TR426
GoodOver: BR ROOKS CREEK
2.0 MI SW CHENOA, McLean, IL
Built 1999 Load: 41.5 t ADT: 75
FAU 6431 CH 29
GoodOver: LITTLE KICKAPOO CR
2.2 MI SW DOWNS, McLean, IL
Built 1999 Load: 41.5 t ADT: 1,350
IL 16
GoodOver: MIDDLE FK SHOAL CR
1.75M E IL16/127 JCT, Montgomery, IL
Built 1989 Load: 41.5 t ADT: 7,800
IL 127
GoodOver: MILLER CREEK
1.8 M S OF IL 185, Montgomery, IL
Built 2012 Load: 41.5 t ADT: 2,450
FAS 580 (CH 11)
GoodOver: Willow Creek
2.0 mi E of US67, Morgan, IL
Built 2020 Load: 41.5 t ADT: 600
ILL 2
GoodOver: GALE CREEK
3/4 MI. S. OREGON, Ogle, IL
Built 1990 Load: 41.5 t ADT: 4,000
IL 105(FAP 741)
GoodOver: STREAM
2 MI SW OF BEMENT, Piatt, IL
Built 1986 Load: 41.5 t ADT: 900
US 54
GoodOver: BLUE CREEK
3.4MI SW GRIGGSVILLE, Pike, IL
Built 1989 Load: 41.5 t ADT: 4,700
ILL 96
GoodOver: BROWN CREEK
3MI SE NEW CANTON, Pike, IL
Built 2008 Load: 41.5 t ADT: 1,100
CH-10
GoodOver: FOX RIVER
0.5 MI NE OLNEY, Richland, IL
Built 1972 Load: 41.5 t ADT: 1,400
IL5
GoodOver: CREEK
.16MI E 41ST ST., Rock Island, IL
Built 2012 Load: 41.5 t ADT: 32,100
ILL 124
GoodOver: FANCY CREEK
5.8M JCT BUS 55, Sangamon, IL
Built 1990 Load: 41.5 t ADT: 1,000
BL 55 (PEORIA ROAD
GoodOver: SUGAR CREEK
.04M S VETERANS PKWY, Sangamon, IL
Built 1995 Load: 41.5 t ADT: 4,700
IL 4
GoodOver: MUD CREEK
1.2 MI N JCT IL 13, St. Clair, IL
Built 1992 Load: 41.5 t ADT: 1,550
OLD IL 3 - FAU 929
GoodOver: HILL CREEK
1.1M S DUPO, St. Clair, IL
Built 1997 Load: 41.5 t ADT: 2,600
EAST BUCKEYE ROAD
GoodOver: COON CREEK
2 MI. E. OF IL 26, Stephenson, IL
Built 1992 Load: 41.5 t ADT: 50
SBI 10 (US 150)
GoodOver: STONY CREEK
0.7 MI E OF MUNCIE, Vermilion, IL
Built 1988 Load: 41.5 t ADT: 2,150
FAP 332(IL 1)
GoodOver: CREEK
S EDGE HOOPESTON, Vermilion, IL
Built 1992 Load: 41.5 t ADT: 4,950
ILL 15
GoodOver: NASHVILLE CREEK
0.5 MI E ILL 127, Washington, IL
Built 1921 Load: 41.5 t ADT: 3,300
DUBOIS-OAKDALE RD
GoodOver: LOCUST CREEK
1.7MI EAST JCT 127, Washington, IL
Built 1996 Load: 41.5 t ADT: 1,100
ILL 177
GoodOver: E TRIB GRAND PT CRK
7.2MI E JCT IL 127, Washington, IL
Built 1995 Load: 41.5 t ADT: 1,600
FAP-328 (US 45)
GoodOver: STREAM
1.5 MI E CISNE, Wayne, IL
Built 2010 Load: 41.5 t ADT: 2,950
Showing 23,701-23,750 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 |