Total Bridges
27,743
Public highway bridges in Illinois
State profile · Near median Poor share
Illinois bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Illinois, based on the FHWA National Bridge Inventory.
- 27,743
- Public bridges
- 41.2%
- Good condition
- 7.9%
- Poor condition
Data updated May 2026
Good Condition
41.2%
11,426 bridges rated 7-9
-8.8pp vs 50% benchmark
Poor Condition
7.9%
2,186 bridges whose lowest applicable component is rated 0-4
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 - Poor-condition share 26.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
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 by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Illinois on the same metric.
RI
Rhode Island
7.69% top marginal rate
NE
Nebraska
7.73% top marginal rate
IL
Illinois
7.88% top marginal rate
MA
Massachusetts
7.96% top marginal rate
MO
Missouri
8.53% top marginal rate
Bridges Needing Most Attention in Illinois
Six lowest-condition bridges in Illinois, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
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
PoorOver: WILSON CREEK
NE-35-T3NR2E, Fulton, IL
Built 1935 Load: 1.3 t ADT: 10
TR 10-B
PoorOver: KING CREEK
W EDGE OF MINERAL, Bureau, IL
Built 1899 Load: 1.6 t ADT: 10
TR-6
PoorOver: DRAINAGE DITCH
3.5 MI NE DIETERICH, Effingham, IL
Built 1909 Load: 1.6 t ADT: 25
TR208K(TWIN BRIDGE
PoorOver: BIG CREEK
NE EDGE MT ZION, Macon, IL
Built 1967 Load: 1.9 t ADT: 375
All Bridges in Illinois
EDSON RD.
GoodOver: UNNAMED
.64MI E ROTHWELL RD, Ogle, IL
Built 2007 Load: 32.4 t ADT: 10
MT. VERNON RD.
GoodOver: FIVE MILE CREEK
5 MI SW FORRESTON, Ogle, IL
Built 2004 Load: 32.4 t ADT: 50
MT. VERNON RD.
GoodOver: BR. ELKHORN CR.
5 MI SW FORRESTON, Ogle, IL
Built 2004 Load: 32.4 t ADT: 50
BLACKWOOD RD.
GoodOver: BR. KILBUCK CREEK
2 MI E DAVIS JUNCTON, Ogle, IL
Built 2004 Load: 32.4 t ADT: 75
MT. VERNON RD.
GoodOver: BR. ELKHORN CREEK
3.3 S. HARPER, Ogle, IL
Built 2005 Load: 32.4 t ADT: 75
WOOD ROAD
GoodOver: BR. OF CLEAR CREEK
.90MI E PRAIRIE RD, Ogle, IL
Built 2006 Load: 32.4 t ADT: 75
WEST BRANCH RD
GoodOver: S. FORK OF LEAF RIVR
.07MI S W GROVE RD, Ogle, IL
Built 2007 Load: 32.4 t ADT: 50
ADELINE RD.
GoodOver: MUD CREEK
2. N. ADELINE, Ogle, IL
Built 2008 Load: 32.4 t ADT: 50
SCOTT RD.
GoodOver: DRAINAGE DITCH
4 NE STILLMAN VALLEY, Ogle, IL
Built 2009 Load: 32.4 t ADT: 175
WEST GROVE RD.
GoodOver: ELKHORN CREEK
2.5 S.W. FORRESTON, Ogle, IL
Built 2010 Load: 32.4 t ADT: 75
TR 17 WAGNER RD
GoodOver: BR OF MUD CREEK
3 MI NE OF ADELINE, Ogle, IL
Built 2012 Load: 32.4 t ADT: 25
PRAIRIE RD
GoodOver: BR OF KYTE CREEK
3 MI SE OF DAYSVILLE, Ogle, IL
Built 2015 Load: 32.4 t ADT: 125
MAPLE GROVE ROAD
GoodOver: PINE CREEK
3 MI SW OF MT MORRIS, Ogle, IL
Built 2014 Load: 32.4 t ADT: 50
MACKLIN RD
GoodOver: TRIB OF STILLMAN CRK
1.5 MI W STILMN VALY, Ogle, IL
Built 2016 Load: 32.4 t ADT: 250
MYRTLE RD
GoodOver: BR MILL CREEK
3.5 NE LEAF RIVER, Ogle, IL
Built 1977 Load: 32.4 t ADT: 75
WHITE ROCK ROAD
GoodOver: BR STILLMAN CREEK
3.0 SW HOLCOMB, Ogle, IL
Built 1978 Load: 32.4 t ADT: 250
STONE BARN ROAD
GoodOver: CLEAR CREEK
7.5 MI SE OREGON, Ogle, IL
Built 1979 Load: 32.4 t ADT: 175
MOUNT MORRIS ROAD
GoodOver: UNNAMED STREAM
NORTH EDGE MT MORRIS, Ogle, IL
Built 1980 Load: 32.4 t ADT: 1,600
MT. VERNON ROAD
GoodOver: BR. OF LEAF RIVER
3.5 MI N OF HARPER, Ogle, IL
Built 1987 Load: 32.4 t ADT: 50
COLUMBINE ROAD
GoodOver: BR. OF LEAF RIVER
2 MI. NE FORRESTON, Ogle, IL
Built 1988 Load: 32.4 t ADT: 100
CHAMBERLAIN ROAD
GoodOver: DRAINAGE DITCH
3 MI SE LINDENWOOD, Ogle, IL
Built 1987 Load: 32.4 t ADT: 25
BLACKWOOD ROAD
GoodOver: BR. KILBUCK CREEK
3 MI. SW MONROE CTR., Ogle, IL
Built 1989 Load: 32.4 t ADT: 75
EVERGREEN ROAD
GoodOver: BR. SEVEN MILE BR.
2.5 MI. SE OF POLO, Ogle, IL
Built 1988 Load: 32.4 t ADT: 50
HOLCOMB ROAD
GoodOver: DRAINAGE DITCH
2 MI W LINDENWOOD, Ogle, IL
Built 1990 Load: 32.4 t ADT: 225
HOLCOMB ROAD
GoodOver: DRAINAGE DITCH
1.6 MI W LINDENWOOD, Ogle, IL
Built 1990 Load: 32.4 t ADT: 225
HALDANE ROAD
GoodOver: BR PINE CREEK
5 MI SE FORRESTON, Ogle, IL
Built 1993 Load: 32.4 t ADT: 125
CRANE GROVE ROAD
GoodOver: BR LEAF RIVER
1.5 MI NW FORRESTON, Ogle, IL
Built 1993 Load: 32.4 t ADT: 25
CARTHAGE ROAD
GoodOver: BR. OF CLEAR CREEK
8.5 MI. SE. OREGON, Ogle, IL
Built 1992 Load: 32.4 t ADT: 50
LIGHTSVILLE RD
GoodOver: BR. LEAF RIVER
3 MI NE FORRESTON, Ogle, IL
Built 1994 Load: 32.4 t ADT: 100
WHITE OAK ROAD
GoodOver: BR. ELKHORN CREEK
1 MI. W. FORRESTON, Ogle, IL
Built 1995 Load: 32.4 t ADT: 600
WOODLAWN ROAD
GoodOver: BR. KILBUCK CREEK
1.1 MI. N. CRESTON, Ogle, IL
Built 1995 Load: 32.4 t ADT: 250
KNOLL RD
GoodOver: BR. OF KYTE RIVER
3 MI. E. OF CHANA, Ogle, IL
Built 1996 Load: 32.4 t ADT: 25
BLACKWOOD RD
GoodOver: BR. OF KILBUCK CREEK
1 MI. SE. DAVIS JCT., Ogle, IL
Built 1996 Load: 32.4 t ADT: 75
CHAMBERLAIN RD
GoodOver: SPRING RUN DITCH
2.8 MI E LINDENWOOD, Ogle, IL
Built 1997 Load: 32.4 t ADT: 25
WILLOUGHBY ROAD
GoodOver: DRAINAGE DITCH
2.5MI NE MONROE CNTR, Ogle, IL
Built 1997 Load: 32.4 t ADT: 150
PINE ROCK RD
GoodOver: BR. OF KYTE CREEK
2 MI NW OF CHANA, Ogle, IL
Built 1998 Load: 32.4 t ADT: 35
SPRINGFIELD RD
GoodOver: BR. LEAF RIVER
2 MI SE BAILEYVILLE, Ogle, IL
Built 1999 Load: 32.4 t ADT: 50
KENT RD
GoodOver: DRAINAGE DITCH
4 MI. N. OF ROCHELLE, Ogle, IL
Built 1999 Load: 32.4 t ADT: 25
EAST LINE RD
GoodOver: S BR KISHWAUKEE RIV.
6 MI NE MONROE CENTR, Ogle, IL
Built 1999 Load: 32.4 t ADT: 150
MOORE RD
GoodOver: BR KILLBUCK CREEK
2.0 MI SW LINDENWOOD, Ogle, IL
Built 2000 Load: 32.4 t ADT: 50
SUMMER HILL RD
GoodOver: BR. ELKHORN CR
1.8 MI SW FORRESTON, Ogle, IL
Built 2000 Load: 32.4 t ADT: 50
BLACKWOOD RD
GoodOver: BR OF KILLBUCK CR
3 MI SW MONROE CENTR, Ogle, IL
Built 2001 Load: 32.4 t ADT: 75
CHERRY RD.
GoodOver: S BR. LEAF RIVER
1 MI SW ADELINE, Ogle, IL
Built 2003 Load: 32.4 t ADT: 25
EDDY ROAD
GoodOver: UNNAMED CREEK
1.5 MI W MONROE CNTR, Ogle, IL
Built 2003 Load: 32.4 t ADT: 50
PILGRIM RD
GoodOver: UNNAMED CREEK
1.5 MI W WOOSUNG, Ogle, IL
Built 2005 Load: 32.4 t ADT: 275
LIGHTSVILLE RD
GoodOver: BR LEAF RIVER
3.5 MI NE FORRESTON, Ogle, IL
Built 2002 Load: 32.4 t ADT: 100
UNION ROAD
GoodOver: FIVE MILE CREEK
5.5 MI S FORRESTON, Ogle, IL
Built 2011 Load: 32.4 t ADT: 125
HALDANE RD
GoodOver: BR PINE CREEK
1.5 NW OF MT MORRIS, Ogle, IL
Built 2013 Load: 32.4 t ADT: 125
FOX LANE RD
GoodOver: BR OF BUFFAL0 CREEK
3 MI SW OF POLO, Ogle, IL
Built 2014 Load: 32.4 t ADT: 10
TR-220 E Pleasant
GoodOver: Spring Creek
2.5 MI NE OF OREGON, Ogle, IL
Built 2018 Load: 32.4 t ADT: 300
Showing 19,951-20,000 of 27,743 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.