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-14
GoodOver: BIG CREEK
1.5 M SW ALTAMONT, Effingham, IL
Built 1977 Load: 59.3 t ADT: 200
TR-269
GoodOver: TR1B BIG MUDDY
2.5 MI E MACEDONIA, Hamilton, IL
Built 1980 Load: 59.3 t ADT: 50
FAP 821 - IL 15
GoodOver: BIG MUDDY RIVER
8.6 MI E WASH CO LN, Jefferson, IL
Built 2007 Load: 59.3 t ADT: 5,350
IL 16
GoodOver: BAUM BRANCH CREEK
0.1 MI E JCT RT. 100, Jersey, IL
Built 2010 Load: 59.3 t ADT: 2,400
TR 468
GoodOver: Honey Creek
0.77 mi S TR 297, Macoupin, IL
Built 2015 Load: 59.3 t ADT: 20
IL 157
GoodOver: SUGAR CREEK
.8 M N EDWARDSVILLE, Madison, IL
Built 2013 Load: 59.3 t ADT: 4,600
US 67
GoodOver: UNNAMED STREAM
3.7M N US67/I72/US36, Morgan, IL
Built 1998 Load: 59.3 t ADT: 5,450
CHARTER OAK ROAD
GoodOver: BIG HOLLOW CRK TRIB
SEC-13-T9NR7E, Peoria, IL
Built 2005 Load: 59.3 t ADT: 9,000
IL 157
GoodOver: BR OF DELAPLAINE CRK
AT WOODLAND SCHOOL, Madison, IL
Built 2002 Load: 59.6 t ADT: 9,850
OR4
GoodOver: Massac Creek
Fort Massac State Park, Massac, IL
Built 2021 Load: 59.6 t ADT: 125
US 67
GoodOver: MILL CREEK
1.2 MI. S. OF IL 94, Rock Island, IL
Built 1993 Load: 59.6 t ADT: 6,700
ILL 78
GoodOver: WALNUT CR TRIB
.75 MI N of W JERSEY, Stark, IL
Built 2021 Load: 59.6 t ADT: 2,350
I 57 NB
GoodOver: CYPRESS CREEK
0.7 MI S ILL 146, Union, IL
Built 1959 Load: 59.6 t ADT: 6,600
I 57 SB
GoodOver: CYPRESS CREEK
0.7 MI S ILL 146, Union, IL
Built 1959 Load: 59.6 t ADT: 6,600
IL 10
GoodOver: DEER CREEK
4.5 M E OF IL 121, Logan, IL
Built 2010 Load: 59.9 t ADT: 1,300
TR 65
GoodOver: E Fork Otter Creek
1 mile NW of Girard, Macoupin, IL
Built 2022 Load: 59.9 t ADT: 75
IL 4
GoodOver: E FORK SILVER CRK
.71 MI N US 40, Madison, IL
Built 2017 Load: 59.9 t ADT: 7,400
CH 5
GoodOver: N FORK LAMOINE RIVER
S.CTR-14-T7NR2W, McDonough, IL
Built 2021 Load: 59.9 t ADT: 50
IL. RT. 9
GoodOver: INTER. STREAM
1.52 MI. E. OF IL122, McLean, IL
Built 2004 Load: 59.9 t ADT: 3,600
OAKLAND AVE FAU 63
GoodOver: BROOKRIDGE CREEK
1.0 MI S 55 & 9, McLean, IL
Built 1993 Load: 59.9 t ADT: 3,600
US 30
GoodOver: HICKORY CREEK
1.3 M E OF US 45, Will, IL
Built 1995 Load: 59.9 t ADT: 21,900
IL 83 (TORRENCE)
GoodOver: NORTH CREEK
2.3 M S I-80,94, Cook, IL
Built 2003 Load: 60.3 t ADT: 13,100
FAP 116 (IL 130)
GoodOver: STREAM
2.75 MI S ALBION, Edwards, IL
Built 2016 Load: 60.3 t ADT: 3,450
I-270 EB & WB
GoodOver: CHAIN OF ROCKS CANAL
2 MI E MISSISSIPPI R, Madison, IL
Built 2014 Load: 60.3 t ADT: 46,200
LAKE ST
GoodOver: ADDISON CREEK
0.2 M E OF US 45, Cook, IL
Built 2011 Load: 60.6 t ADT: 20,100
FAP 323 (US 36)
GoodOver: BEAR CREEK
0.5 MI E OF ATWOOD, Douglas, IL
Built 2008 Load: 60.6 t ADT: 3,550
IL 255 SB
GoodOver: WEST FK WOODRIVER CK
1.2 W FOSTERBURG RD, Madison, IL
Built 2006 Load: 60.6 t ADT: 14,900
TR-155 (Justen Rd)
GoodOver: Trib. Fox River
0.5 MI N WRIGHT RD, McHenry, IL
Built 2018 Load: 60.6 t ADT: 675
BLUFF RD
GoodOver: BR MUD CREEK
4.5 NE FORRESTON, Ogle, IL
Built 2019 Load: 60.6 t ADT: 75
LIMB BRANCH LA
GoodOver: BNSF RR
0.5 MI. W. ILL. 37, Williamson, IL
Built 2019 Load: 60.6 t ADT: 100
ILL 96
GoodOver: BELLEVIEW HOLLOW CRK
BELLEVIEW, Calhoun, IL
Built 1995 Load: 60.9 t ADT: 550
CENTER ST
GoodOver: HARVEY DR CANAL
0.25M S 159th St., Cook, IL
Built 2016 Load: 60.9 t ADT: 2,750
US 24/ IL 78
GoodOver: BIG SISTER CR
1.7 MI SW IL 78 WYE, Fulton, IL
Built 2014 Load: 60.9 t ADT: 3,750
Hillview Eldred Rd
GoodOver: STREAM
4.5 M N JCT 108, Greene, IL
Built 2011 Load: 60.9 t ADT: 400
TR-269
GoodOver: TRIB BIG MUDDY
2 MI E MACEDONIA, Hamilton, IL
Built 1979 Load: 60.9 t ADT: 50
CH 76 Possum Hill
GoodOver: Sherry Creek
2.0 Mi N Carpenter, Madison, IL
Built 2023 Load: 60.9 t ADT: 350
US 45
GoodOver: BEAR CREEK OVERFLOW
2.5 MI S IL 1/US 45, White, IL
Built 2023 Load: 60.9 t ADT: 2,600
CAMPBELL ROAD
GoodOver: HUNGRY RUN CREEK
0.5 M E OF MOATE RD, Winnebago, IL
Built 1984 Load: 60.9 t ADT: 50
IL 29 FAS 1252
GoodOver: DRAINAGE DITCH
EAST EDGE OF DEPUE, Bureau, IL
Built 1991 Load: 61.2 t ADT: 2,450
FAI 55
GoodOver: WOLF CREEK
3.2 MI E OF ILL 23, Livingston, IL
Built 1976 Load: 61.2 t ADT: 22,300
IL 2
GoodOver: LEAF RIVER
3 MI. SW. OF BYRON, Ogle, IL
Built 1995 Load: 61.2 t ADT: 5,950
US 136
GoodOver: KICKAPOO CREEK
1.34 M W OF US 51, McLean, IL
Built 2011 Load: 61.6 t ADT: 3,000
FAS 472 CH 12
GoodOver: BRANCH SIX MI CR.
2.3 MI W HUDSON, McLean, IL
Built 1992 Load: 61.6 t ADT: 825
FAP 776-IL 142
GoodOver: DRAINAGE DITCH
0.1 MI NW JCT US 45, Saline, IL
Built 1963 Load: 61.6 t ADT: 5,550
ENLISTED DRIVE
GoodOver: ASH CREEK
400' WEST OF W. BIRCHARD, Peoria, IL
Built 1980 Load: 61.7 t ADT: 7,500
I-90 WB Jayne Adam
GoodOver: Higgins Creek
1.2 Mi E. Ill Rte 83, Cook, IL
Built 2015 Load: 61.9 t ADT: 160,700
I-90 EB
GoodOver: Higgins Creek
1.2 Mi E. Ill Rte 83, Cook, IL
Built 2015 Load: 61.9 t ADT: 160,700
IL 121 (FAP 773)
GoodOver: BIG MUDDY CREEK
2 MI W OF TOLEDO, Cumberland, IL
Built 2010 Load: 61.9 t ADT: 1,800
I 57 NB
GoodOver: CASEY FORK CREEK
4.5 MI S ILL-15 INT, Jefferson, IL
Built 1966 Load: 61.9 t ADT: 18,750
I 57 SB
GoodOver: CASEY FORK CREEK
4.5 MI S ILL-15 INT, Jefferson, IL
Built 1966 Load: 61.9 t ADT: 18,750
Showing 25,201-25,250 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 |