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 282
FairOver: LITTLE WAB TRIB
6.5 MI W GRAYVILLE, White, IL
Built 1997 Load: 32.4 t ADT: 75
TR 207
FairOver: DRAINAGE DITCH
3.25 N MAUNIE, White, IL
Built 1998 Load: 32.4 t ADT: 25
TR 345A
FairOver: INDIAN CREEK
1 MI SE NORRIS CITY, White, IL
Built 1998 Load: 32.4 t ADT: 100
TR 41
FairOver: LITTLE WABASH RIVER
6 MI SW GRAYVILLE, White, IL
Built 2004 Load: 32.4 t ADT: 25
TR 145
FairOver: TRIB TO SKILLET FORK
3 M. NW CARMI, White, IL
Built 1999 Load: 32.4 t ADT: 50
FAS 1884
FairOver: CREEK
4 MI W GRAYVILLE, White, IL
Built 1999 Load: 32.4 t ADT: 150
TR 125
FairOver: CREEK
3 MI SE SPRINGERTON, White, IL
Built 1999 Load: 32.4 t ADT: 25
TR 46
FairOver: DRAINAGE DITCH
1.5 MI N ENFIELD, White, IL
Built 2001 Load: 32.4 t ADT: 25
TR 186
FairOver: FLANDERS CREEK
2 MI SW CARMI, White, IL
Built 2001 Load: 32.4 t ADT: 175
TR 376A
FairOver: HAWTHORNE DITCH
6 MI E CARMI, White, IL
Built 2000 Load: 32.4 t ADT: 25
TR 271
FairOver: BEAR CREEK
2.5MI NW NORRIS CITY, White, IL
Built 2005 Load: 32.4 t ADT: 75
TR 342
FairOver: SANDY SLOUGH
4 MI E NEW HAVEN, White, IL
Built 2002 Load: 32.4 t ADT: 25
CH 15
FairOver: CROOKED CREEK
1.7 MI SW CROSSVILLE, White, IL
Built 2004 Load: 32.4 t ADT: 75
TR 202
FairOver: TRIB 2 LITTLE WABASH
1 MILE W. OF CARMI, White, IL
Built 2006 Load: 32.4 t ADT: 550
TR-176
FairOver: SEVEN MILE CREEK
6 MI NW CARMI, White, IL
Built 2007 Load: 32.4 t ADT: 25
TR-18
FairOver: SOUTHERN OUTLET
2 MI N SPRINGERTON, White, IL
Built 2008 Load: 32.4 t ADT: 10
TR 71
FairOver: LIMEKILN CREEK
3 MI W CENTERVILLE, White, IL
Built 2008 Load: 32.4 t ADT: 25
TR-107
FairOver: LOST CREEK
2.25 MI SE SPRINGRTN, White, IL
Built 2009 Load: 32.4 t ADT: 50
FAS 1884
FairOver: ELLIOT CR TRIB
SEC 11 T4S R10E, White, IL
Built 2011 Load: 32.4 t ADT: 100
FAS 881
FairOver: Bear Creek
2 mi SW Norris City, White, IL
Built 2012 Load: 32.4 t ADT: 175
1100 E
FairOver: TRIB LITTLE WABASH
1 M NE HERALD, White, IL
Built 2012 Load: 32.4 t ADT: 25
MAIN ST
FairOver: TRIB TO ELLIOT CREEK
CROSSVILLE, White, IL
Built 2012 Load: 32.4 t ADT: 375
1050 N
FairOver: TRIB BEAR CREEK
3.5 M NW NORRIS CITY, White, IL
Built 2012 Load: 32.4 t ADT: 100
1300N
FairOver: LOWER SANDY SLOUGH
0.09 MI E OF 1975E, White, IL
Built 2015 Load: 32.4 t ADT: 25
2475 N
FairOver: TRIB SKILLET FORK
1 M SE MILL SHOALS, White, IL
Built 2012 Load: 32.4 t ADT: 50
1100 N
FairOver: TRIB TO GRINDSTONE
1 MI E BROWNSVILLE, White, IL
Built 2015 Load: 32.4 t ADT: 25
TR-353
FairOver: Trib Little Wabash R
1 MI SE OF HERALD, White, IL
Built 2017 Load: 32.4 t ADT: 50
US 30
FairOver: CREEK
.30MI W PROPHET RD, Whiteside, IL
Built 1940 Load: 32.4 t ADT: 5,100
ILL 78
FairOver: STREAM
2.1 MI S MORRISON, Whiteside, IL
Built 1979 Load: 32.4 t ADT: 1,800
PILGRIM RD
FairOver: JORDAN CREEK
AT THE OGLE CO LN, Whiteside, IL
Built 1992 Load: 32.4 t ADT: 1,850
FAI 88
FairOver: STREAM
0.3 MI W YORKTOWN RD, Whiteside, IL
Built 1975 Load: 32.4 t ADT: 12,600
PILGRIM ROAD
FairOver: ELKHORN CREEK
6 MI NORTH STERLING, Whiteside, IL
Built 1935 Load: 32.4 t ADT: 650
MC CUE ROAD
FairOver: ELKHORN CREEK
2 MI WEST OF STERLIN, Whiteside, IL
Built 1961 Load: 32.4 t ADT: 1,350
EMERSON ROAD
FairOver: ELKHORN CREEK
EAST EDGE OF EMERSON, Whiteside, IL
Built 1982 Load: 32.4 t ADT: 4,150
EMERSON ROAD
FairOver: SPRING CREEK
W EDGE OF EMERSON, Whiteside, IL
Built 1982 Load: 32.4 t ADT: 4,150
EMERSON ROAD
FairOver: SUGAR CREEK
.5 MI W OF EMERSON, Whiteside, IL
Built 1982 Load: 32.4 t ADT: 3,050
MILL RD
FairOver: COON CREEK
1 MI E PROPHETSTOWN, Whiteside, IL
Built 1984 Load: 32.4 t ADT: 325
ALBANY ROAD
FairOver: MINERAL SPRINGS CRK.
2 MI NORTH OF ERIE, Whiteside, IL
Built 2007 Load: 32.4 t ADT: 1,400
ALBANY ROAD
FairOver: DRAINAGE DITCH
0.5 MI NORTH OF ERIE, Whiteside, IL
Built 2007 Load: 32.4 t ADT: 1,200
LYNDON ROAD
FairOver: FRENCH CREEK
0.7 MI N JCT US 30, Whiteside, IL
Built 2002 Load: 32.4 t ADT: 800
CREAMERY RD
FairOver: OTTER CREEK
.11MI N SPRNG VLY RD, Whiteside, IL
Built 2008 Load: 32.4 t ADT: 75
STAR ROAD-FAS 2192
FairOver: COON CREEK
0.88MI E JCT ILL 78, Whiteside, IL
Built 2010 Load: 32.4 t ADT: 2,550
LYNDON ROAD
FairOver: ROCK CREEK
3.5 MI NE MORRISON, Whiteside, IL
Built 2010 Load: 32.4 t ADT: 725
DEAN RD
FairOver: ROCK CREEK
4 MI NW OF COLETA, Whiteside, IL
Built 1986 Load: 32.4 t ADT: 50
ELM RD
FairOver: BRANCH OF ROCK CREEK
5 MI NE OF MORRISON, Whiteside, IL
Built 1986 Load: 32.4 t ADT: 50
SAWYER ROAD
FairOver: LITTLE ROCK CREEK
6 MI. N. MORRISON, Whiteside, IL
Built 1993 Load: 32.4 t ADT: 10
FELTON ROAD (TR 57
FairOver: ROCK CREEK
5 MI NE OF MORRISON, Whiteside, IL
Built 1992 Load: 32.4 t ADT: 50
CLARK RD
FairOver: BR OF LITTLE ROCK CR
8.0 M N OF MORRISON, Whiteside, IL
Built 1987 Load: 32.4 t ADT: 50
YORKTOWN ROAD
FairOver: LITTLE SPRING CREEK
3 MI. SW. OF COLETA, Whiteside, IL
Built 1996 Load: 32.4 t ADT: 25
LAKE ROAD (TR 31)
FairOver: BRANCH ROCK CREEK
5 MI. N. MORRISON, Whiteside, IL
Built 1994 Load: 32.4 t ADT: 75
Showing 9,951-10,000 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.