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
US 51
GoodOver: UNNAMED STREAM
N OF SCL ELKVILLE, Jackson, IL
Built 2022 Load: 39.9 t ADT: 6,400
IL 25
GoodOver: ABANDONED RR - UP
0.1 M N OF IL 64, Kane, IL
Built 1969 Load: 39.9 t ADT: 9,600
CO. HWY. 3
GoodOver: TRIB TO WALNUT CREEK
SW-25-T13NR2E, Knox, IL
Built 1978 Load: 39.9 t ADT: 475
1ST STREET
GoodOver: MENDOTA CREEK
100FT W OF ORCHARD, LaSalle, IL
Built 1997 Load: 39.9 t ADT: 225
TR-55
GoodOver: SUGAR CREEK
5 MI ESE BIRDS, Lawrence, IL
Built 1998 Load: 39.9 t ADT: 50
TR 266
GoodOver: Taylor Ditch
2.5 Mi. SW Russelville, Lawrence, IL
Built 2021 Load: 39.9 t ADT: 20
TR 4B (100E)
GoodOver: MOLE CREEK
1975 N, 100 E, Livingston, IL
Built 2021 Load: 39.9 t ADT: 25
FAS 549 (CH 20)
GoodOver: SOUTH FORK CREEK
.5 MI E WARRENSBURG, Macon, IL
Built 2002 Load: 39.9 t ADT: 1,350
IL 157
GoodOver: DELAPLAINE CR
ON 157@WOODLAND SCHL, Madison, IL
Built 1997 Load: 39.9 t ADT: 9,850
TR 153 Buchta Road
GoodOver: Indian Creek
4 M NW Edwardsville, Madison, IL
Built 2018 Load: 39.9 t ADT: 1,350
FAS-2794
GoodOver: E FK KASKASKIA RIVER
1.7 MI N KINMUNDY, Marion, IL
Built 1987 Load: 39.9 t ADT: 350
Kishwaukee Valley
GoodOver: Rush Creek Tributary
0.20 Mi E of Root Rd, McHenry, IL
Built 2021 Load: 39.9 t ADT: 3,600
TR 164
GoodOver: CAMP CREEK
SW-21-T15NR3W, Mercer, IL
Built 1998 Load: 39.9 t ADT: 25
ILL 3
GoodOver: ROCKHOUSE CREEK
4 MI SE WATERLOO, Monroe, IL
Built 1995 Load: 39.9 t ADT: 6,950
MCCLELLAN RD
GoodOver: WALNUT CREEK
WLINE NW1/4 9 T9NR5E, Peoria, IL
Built 1987 Load: 39.9 t ADT: 200
ILL 154
GoodOver: PANTHER CREEK
3.4 MI W OF US 51, Perry, IL
Built 2011 Load: 39.9 t ADT: 4,000
FAS-813
GoodOver: Simmons Creek
4.5 Mi. E Parkersbur, Richland, IL
Built 2017 Load: 39.9 t ADT: 50
252ND ST (CH 66)
GoodOver: COPPERAS CREEK
1.5 MI. S. IL 92, Rock Island, IL
Built 1998 Load: 39.9 t ADT: 100
DENEAL RD
GoodOver: DENEAL BRANCH
0.5 MI NE ILL 34, Saline, IL
Built 2019 Load: 39.9 t ADT: 100
IL 100
GoodOver: ELM CREEK
E EDGE SHELDON GROVE, Schuyler, IL
Built 1999 Load: 39.9 t ADT: 525
ILL 13 / IL 157
GoodOver: HARDING DITCH
SE OF JCT IL 163&157, St. Clair, IL
Built 1973 Load: 39.9 t ADT: 6,000
ILL 161
GoodOver: TRIB TO LOOP CREEK
1.22 M W OF ILL 158, St. Clair, IL
Built 1933 Load: 39.9 t ADT: 14,400
TR 90 A
GoodOver: BAUM BRANCH
2.5 MI SW JAMAICA, Vermilion, IL
Built 2021 Load: 39.9 t ADT: 50
TR 162
GoodOver: CEDAR CREEK
SW-19-T11N,R1W, Warren, IL
Built 1983 Load: 39.9 t ADT: 25
ILL 177
GoodOver: GRAND POINT CREEK
3.2 M W JCT U S 51, Washington, IL
Built 1928 Load: 39.9 t ADT: 1,600
AVENUE G
GoodOver: BN RR & WALLACE ST
STERLING, Whiteside, IL
Built 1963 Load: 39.9 t ADT: 7,700
I-88 EB
GoodOver: HOWLAND CREEK
.2 MI W LEE CO LINE, Whiteside, IL
Built 1972 Load: 39.9 t ADT: 7,850
BLACK RD
GoodOver: DUPAGE RIVER
200 FT W FAI 55, Will, IL
Built 1959 Load: 39.9 t ADT: 24,900
BELVIDERE RD
GoodOver: MCDONALD CREEK
0.7 MI NW SWANSON RD, Winnebago, IL
Built 1979 Load: 39.9 t ADT: 3,950
CH 13 FAS 364
GoodOver: TRIB OF SNAG CREEK
5.5 MI N of Roanoke, Woodford, IL
Built 2016 Load: 39.9 t ADT: 150
TR 37
GoodOver: TRIB TO MILL CREEK
3 MI E OF ELCO, Alexander, IL
Built 1985 Load: 40.2 t ADT: 75
TR-44
GoodOver: TRIB TO CIRCLE DITCH
0.5 MI S TWENTE CR, Alexander, IL
Built 2013 Load: 40.2 t ADT: 100
TR 3 - COUNTY LINE
GoodOver: TRIB TO COOPER CR
0.75 MI W of IL 127, Alexander, IL
Built 2014 Load: 40.2 t ADT: 325
IL 89 (FAP 698)
GoodOver: ILLINOIS RIVER
0.91M S of US 6, Bureau, IL
Built 2018 Load: 40.2 t ADT: 4,450
FAS 575
GoodOver: MIDDLE CREEK
4.5 M N NEWMANSVILLE, Cass, IL
Built 2010 Load: 40.2 t ADT: 500
IL 10(FAU 7123)
GoodOver: COPPER SLOUGH
W EDGE OF CHAMPAIGN, Champaign, IL
Built 1983 Load: 40.2 t ADT: 8,200
FAP 709 (US 136)
GoodOver: S BRANCH BIG DITCH
1 MI W OF RANTOUL, Champaign, IL
Built 2004 Load: 40.2 t ADT: 2,850
FAP 332(IL 1)
GoodOver: STREAM
S OF WEST UNION, Clark, IL
Built 1992 Load: 40.2 t ADT: 2,700
TR-178
GoodOver: BUCK CREEK
3 MI NW FLORA, Clay, IL
Built 1909 Load: 40.2 t ADT: 75
ROOSEVELT RD
GoodOver: ADDISON CREEK
0.6 M E US 45, Cook, IL
Built 2003 Load: 40.2 t ADT: 24,000
FULLERTON AVE
GoodOver: SILVER CREEK
0.7 M E OF US 45, Cook, IL
Built 2012 Load: 40.2 t ADT: 5,800
Gladstone Street
GoodOver: Addison Creek
0.5 mi. E of US 45, Cook, IL
Built 2022 Load: 40.2 t ADT: 475
I-94 (EB)
GoodOver: Metra & Can Pac RR
0.5 Mi W of Ill 43, Cook, IL
Built 2019 Load: 40.2 t ADT: 23,000
IL 54 (FAP 71)
GoodOver: COON CREEK
2 MI NE CLINTON, De Witt, IL
Built 2011 Load: 40.2 t ADT: 1,650
IL 130 (FAP 808)
GoodOver: Embarras River
In Villa Grove, Douglas, IL
Built 2022 Load: 40.2 t ADT: 4,350
MAPLE AVE
GoodOver: E. BR DU PAGE RIVER
.1 M W ILL 53, DuPage, IL
Built 1973 Load: 40.2 t ADT: 16,000
IL 390 EB
GoodOver: SALT CREEK
1.7 MI E I 290, DuPage, IL
Built 2015 Load: 40.2 t ADT: 25,800
IL 390 WB
GoodOver: SALT CREEK
1.7 MI E I 290, DuPage, IL
Built 2017 Load: 40.2 t ADT: 25,800
IL 390 WB
GoodOver: HAMILTON LAKES DR
270' N THORNDALE, DuPage, IL
Built 2016 Load: 40.2 t ADT: 31,500
I-88 EB
GoodOver: E BR DUPAGE RIVER
0.3M.W.IL-53, DuPage, IL
Built 1958 Load: 40.2 t ADT: 75,650
Showing 23,401-23,450 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 |